Chemicals and DrugsAnalytical, Diagnostic and Therapeutic Techniques and EquipmentPhenomena and ProcessesDisciplines and OccupationsTechnology, Industry, Agriculture
Metal NanoparticlesSilverGoldNanoparticlesGreen Chemistry TechnologyNanotechnologySurface Plasmon ResonanceMetalsMagnetite NanoparticlesParticle SizeDrug CarriersNanocapsulesDrug Delivery SystemsNanomedicinePolyglycolic AcidChitosanFerric CompoundsMicroscopy, Electron, TransmissionNanostructuresSilicon DioxideZinc OxideMagneticsCeriumPolymersNanoconjugatesSurface Properties
Metal Nanoparticles
Nanoparticles produced from metals whose uses include biosensors, optics, and catalysts. In biomedical applications the particles frequently involve the noble metals, especially gold and silver.
Silver
Silver. An element with the atomic symbol Ag, atomic number 47, and atomic weight 107.87. It is a soft metal that is used medically in surgical instruments, dental prostheses, and alloys. Long-continued use of silver salts can lead to a form of poisoning known as ARGYRIA.
Gold
A yellow metallic element with the atomic symbol Au, atomic number 79, and atomic weight 197. It is used in jewelry, goldplating of other metals, as currency, and in dental restoration. Many of its clinical applications, such as ANTIRHEUMATIC AGENTS, are in the form of its salts.
Nanoparticles
Nanometer-sized particles that are nanoscale in three dimensions. They include nanocrystaline materials; NANOCAPSULES; METAL NANOPARTICLES; DENDRIMERS, and QUANTUM DOTS. The uses of nanoparticles include DRUG DELIVERY SYSTEMS and cancer targeting and imaging.
Green Chemistry Technology
Pollution prevention through the design of effective chemical products that have low or no toxicity and use of chemical processes that reduce or eliminate the use and generation of hazardous substances.
Nanotechnology
The development and use of techniques to study physical phenomena and construct structures in the nanoscale size range or smaller.
Surface Plasmon Resonance
A biosensing technique in which biomolecules capable of binding to specific analytes or ligands are first immobilized on one side of a metallic film. Light is then focused on the opposite side of the film to excite the surface plasmons, that is, the oscillations of free electrons propagating along the film's surface. The refractive index of light reflecting off this surface is measured. When the immobilized biomolecules are bound by their ligands, an alteration in surface plasmons on the opposite side of the film is created which is directly proportional to the change in bound, or adsorbed, mass. Binding is measured by changes in the refractive index. The technique is used to study biomolecular interactions, such as antigen-antibody binding.
Metals
Electropositive chemical elements characterized by ductility, malleability, luster, and conductance of heat and electricity. They can replace the hydrogen of an acid and form bases with hydroxyl radicals. (Grant & Hackh's Chemical Dictionary, 5th ed)
Magnetite Nanoparticles
Synthesized magnetic particles under 100 nanometers possessing many biomedical applications including DRUG DELIVERY SYSTEMS and CONTRAST AGENTS. The particles are usually coated with a variety of polymeric compounds.
Particle Size
Relating to the size of solids.
Drug Carriers
Forms to which substances are incorporated to improve the delivery and the effectiveness of drugs. Drug carriers are used in drug-delivery systems such as the controlled-release technology to prolong in vivo drug actions, decrease drug metabolism, and reduce drug toxicity. Carriers are also used in designs to increase the effectiveness of drug delivery to the target sites of pharmacological actions. Liposomes, albumin microspheres, soluble synthetic polymers, DNA complexes, protein-drug conjugates, and carrier erythrocytes among others have been employed as biodegradable drug carriers.
Nanocapsules
Nanometer-sized, hollow, spherically-shaped objects that can be utilized to encapsulate small amounts of pharmaceuticals, enzymes, or other catalysts (Glossary of Biotechnology and Nanobiotechnology, 4th ed).
Drug Delivery Systems
Systems for the delivery of drugs to target sites of pharmacological actions. Technologies employed include those concerning drug preparation, route of administration, site targeting, metabolism, and toxicity.
Nanomedicine
The branch of medicine concerned with the application of NANOTECHNOLOGY to the prevention and treatment of disease. It involves the monitoring, repair, construction, and control of human biological systems at the molecular level, using engineered nanodevices and NANOSTRUCTURES. (From Freitas Jr., Nanomedicine, vol 1, 1999).
Polyglycolic Acid
A biocompatible polymer used as a surgical suture material.
Chitosan
Deacetylated CHITIN, a linear polysaccharide of deacetylated beta-1,4-D-glucosamine. It is used in HYDROGEL and to treat WOUNDS.
Ferric Compounds
Inorganic or organic compounds containing trivalent iron.
Microscopy, Electron, Transmission
Electron microscopy in which the ELECTRONS or their reaction products that pass down through the specimen are imaged below the plane of the specimen.
Nanostructures
Materials which have structured components with at least one dimension in the range of 1 to 100 nanometers. These include NANOCOMPOSITES; NANOPARTICLES; NANOTUBES; and NANOWIRES.
Silicon Dioxide
Transparent, tasteless crystals found in nature as agate, amethyst, chalcedony, cristobalite, flint, sand, QUARTZ, and tridymite. The compound is insoluble in water or acids except hydrofluoric acid.
Zinc Oxide
A mild astringent and topical protectant with some antiseptic action. It is also used in bandages, pastes, ointments, dental cements, and as a sunblock.
Magnetics
The study of MAGNETIC PHENOMENA.
Cerium
An element of the rare earth family of metals. It has the atomic symbol Ce, atomic number 58, and atomic weight 140.12. Cerium is a malleable metal used in industrial applications.
Polymers
Compounds formed by the joining of smaller, usually repeating, units linked by covalent bonds. These compounds often form large macromolecules (e.g., BIOPOLYMERS; PLASTICS).
Nanoconjugates
Tailored macromolecules harboring covalently-bound biologically active modules that target specific tissues and cells. The active modules or functional groups can include drugs, prodrugs, antibodies, and oligonucleotides, which can act synergistically and be multitargeting.
Surface Properties
Characteristics or attributes of the outer boundaries of objects, including molecules.

Quantitative detection of individual cleaved DNA molecules on surfaces using gold nanoparticles and scanning electron microscope imaging. (1/1513)

Single-nucleotide polymorphisms (SNPs) are the most frequent type of human genetic variation. Recent work has shown that it is possible to directly analyze SNPs in unamplified human genomic DNA samples using the surface-invasive cleavage reaction followed by rolling circle amplification (RCA) labeling of the cleavage products. The individual RCA amplicon molecules were counted on the surface using fluorescence microscopy. Two principal limitations of such single-molecule counting are the variability in the amplicon size, which results in a large variation in fluorescence signal intensity from the dye-labeled DNA molecules, and a high level of background fluorescence. It is shown here that an excellent alternative to RCA labeling is tagging with gold nanoparticles followed by imaging with a scanning electron microscope. Gold nanoparticles have a uniform diameter (15 +/- 0.5 nm) and provide excellent contrast against the background of the silicon substrate employed. Individual gold nanoparticles are readily counted using publicly available software. The results demonstrate that the labeling efficiency is improved by as much as approximately 15-fold, and the signal-to-noise ratio is improved by approximately 4-fold. Detection of individual cleaved DNA molecules following surface-invasive cleavage was linear and quantitative over 3 orders of magnitude in amount of target DNA (10(-18)-10(-15) mol).  (+info)

Calixarene-encapsulated nanoparticles: self-assembly into functional nanomaterials. (2/1513)

Calixarenes are excellent surfactants for enhancing the dispersion and self-assembly of metal nanoparticles into well-defined structures, particularly those with unit length scales in the 10-100 nm size range. Particles within these ensembles are strongly coupled, giving rise to unique collective optical or magnetic properties. The self-assembled nanostructures described in this feature article include 2D arrays of colloidal Au nanoparticles with size-dependent plasmonic responses, and sub-100 nm Co nanoparticle rings with chiral magnetic states. These nanoparticle assemblies may be further developed for applications in chemical sensing based on surface-enhanced Raman scattering (SERS) and as binary elements for nonvolatile memory, respectively.  (+info)

A gold nanoparticle based approach for screening triplex DNA binders. (3/1513)

Nanoparticle assemblies interconnected with DNA triple helixes can be used to colorimetrically screen for triplex DNA binding molecules and simultaneously determine their relative binding affinities based on melting temperatures. Nanoparticles assemble only when DNA triple helixes form between DNA from two different particles and a third strand of free DNA. In addition, the triple helix structure is unstable at room temperature and only forms in the presence of triplex DNA binding molecules which stabilize the triple helix. The resulting melting transition of the nanoparticle assembly is much sharper and at a significantly higher Tm than the analogous triplex structure without nanoparticles. Upon nanoparticle assembly, a concomitant red-to-blue color change occurs. The assembly process and color change do not occur in the presence of duplex DNA binders and therefore provide a significantly better screening process for triplex DNA binding molecules compared to standard methods.  (+info)

Dye-labeled silver nanoshell-bright particle. (4/1513)

Silica beads with average diameters of 40-600 nm were prepared, and Ru(bpy)3(2+) complexes were incorporated into the beads. These beads were coated by silver layer by layer to generate porous but continuous metal nanoshells. The thicknesses of these metal shells were 5-50 nm. The emission band from the dyes in the silica cores was more narrow and the intensity was enhanced with growth of silver shell thickness due to coupling of the emission light from Ru(bpy)3(2+) in the cores with the metal plasmon from the silver shells. The enhancement of emission intensity was also dependent on the size of the silica core, showing that the enhancement efficiency decreased with an increase in the size of the silica beads. Lifetime measurements support the coupling mechanism between the dye and metal shell. This study can be used to develop novel dye-labeled metal particles with bright and narrow emission bands.  (+info)

Asymmetric functionalization of gold nanoparticles with oligonucleotides. (5/1513)

Gold nanoparticles (AuNPs) were anisotropically functionalized with two different oligonucleotide sequences using magnetic microparticles as geometric restriction templates for site-selective enzymatic extension of particle-bound oligonucleotides. The divalent linking capability of the resulting AuNPs allowed for the design and programmable assembly of discrete nanoparticle heterostructures.  (+info)

Surface-enhanced fluorescence of fluorescein-labeled oligonucleotides capped on silver nanoparticles. (6/1513)

Tiopronin monolayer-protected silver nanoparticles with different core sizes (average diameter = 2, 5, 20 nm) were prepared by using different mole ratios of silver nitrate/tiopronin. Ligands on the silver particles were partially displaced by fluorescein-labeled thiolate single-stranded oligonucleotides or their complementary unlabeled oligonucleotides through ligand exchange. The fluorophores on silver particles showed a surface-enhanced fluorescence (SEF) dependent on the size of metallic cores. The particles could be coupled through hybridizations of oligonucleotides bound on the particles. The coupled particles were aggregated due to multiple displacements of oligonucleotides on each particle, resulting in stronger SEF. The dye-labeled oligonucleotides were assembled on the silver islands on the solid substrate, and the complementary oligonucleotide-displaced particles were coupled via oligonucleotide hybridization. The couplings between particles and islands resulted in an obvious fluorescence enhancement.  (+info)

Enhanced luminescence of phenyl-phenanthridine dye on aggregated small silver nanoparticles. (7/1513)

Tiopronin-coated silver particles (average diameters of core = 1.6 nm) were prepared by a modified Brust method, and the ligands on the metal core were partially displaced by (2-mercapto-propionylamino) acetic acid-2,5-dioxo-pyrrolidin-1-ylester through ligand exchanges. The particles were bound on amine-pendent polymer backbones by condensation to generate compact aggregates of particles. The aggregated particles displayed a plasmon absorbance rising at 440 nm. Luminescence was enhanced to about 2 times with increasing the plasmon rising by the particle aggregation upon excitation at 400 nm when the polymer was labeled by 3,8-diamino-6-phenyl-phenanthridine.  (+info)

c-Type cytochrome-dependent formation of U(IV) nanoparticles by Shewanella oneidensis. (8/1513)

Modern approaches for bioremediation of radionuclide contaminated environments are based on the ability of microorganisms to effectively catalyze changes in the oxidation states of metals that in turn influence their solubility. Although microbial metal reduction has been identified as an effective means for immobilizing highly-soluble uranium(VI) complexes in situ, the biomolecular mechanisms of U(VI) reduction are not well understood. Here, we show that c-type cytochromes of a dissimilatory metal-reducing bacterium, Shewanella oneidensis MR-1, are essential for the reduction of U(VI) and formation of extracellular UO(2) nanoparticles. In particular, the outer membrane (OM) decaheme cytochrome MtrC (metal reduction), previously implicated in Mn(IV) and Fe(III) reduction, directly transferred electrons to U(VI). Additionally, deletions of mtrC and/or omcA significantly affected the in vivo U(VI) reduction rate relative to wild-type MR-1. Similar to the wild-type, the mutants accumulated UO(2) nanoparticles extracellularly to high densities in association with an extracellular polymeric substance (EPS). In wild-type cells, this UO(2)-EPS matrix exhibited glycocalyx-like properties and contained multiple elements of the OM, polysaccharide, and heme-containing proteins. Using a novel combination of methods including synchrotron-based X-ray fluorescence microscopy and high-resolution immune-electron microscopy, we demonstrate a close association of the extracellular UO(2) nanoparticles with MtrC and OmcA (outer membrane cytochrome). This is the first study to our knowledge to directly localize the OM-associated cytochromes with EPS, which contains biogenic UO(2) nanoparticles. In the environment, such association of UO(2) nanoparticles with biopolymers may exert a strong influence on subsequent behavior including susceptibility to oxidation by O(2) or transport in soils and sediments.  (+info)

Surface-assisted laser desorption/ionization time-of-flight mass spectrometry of small drug molecules and high molecular weight...Surface-assisted laser desorption/ionization time-of-flight mass spectrometry of small drug molecules and high molecular weight...
Polyacrylonitrile/Nafion®/carbon nanotube (PAN/Nafion®/CNT) composite nanofibers were prepared using electrospinning. These electrospun nanofibers were studied as possible substrates for surface-assisted laser desorption/ionization (SALDI) and matrix-enhanced surface-assisted laser desorption/ionization time
https://pubs.rsc.org/en/Content/ArticleLanding/2017/AN/C6AN02444K
Affinity surface-assisted laser desorption/ionization mass spectrometry for peptide enrichment.
In this paper, we report on the functionalization of silicon nanostructured (NanoSi) surface with an organic layer of nitrilotriacetic acid (NTA) and its subsequent use as an affinity surface-assisted laser desorption/ionization mass spectrometry (SA
http://www.biomedsearch.com/nih/Affinity-surface-assisted-laser-mass/23061090.html
Magneto-optical properties and size effect of ferromagnetic metal nanoparticles<...
TY - JOUR. T1 - Magneto-optical properties and size effect of ferromagnetic metal nanoparticles. AU - Kaihara, Terunori. AU - Mizuguchi, Masaki. AU - Takanashi, Koki. AU - Shimizu, Hiromasa. PY - 2013/1/1. Y1 - 2013/1/1. N2 - We investigated the magneto-optical (MO) effect with localized surface plasmon resonance (LSPR) on ferromagnetic metal (Fe and Co) nanoparticles. We estimated the electric-field enhancement of the ferromagnetic metal nanoparticles caused by LSPR based on Mie scattering theory and compared it with that of Au nanoparticles. The electric-field enhancement of the ferromagnetic metal nanoparticles was 15-17, which is half of that of the Au nanoparticles. In order to explain the calculated results, we prepared ferromagnetic metal nanoparticles by a self-assembly process. We measured the optical transmission spectra and Faraday effect of the ferromagnetic nanoparticles. Although remarkable MO enhancement was not observed, we found characteristic MO spectra and a peak shift at ...
https://tohoku.pure.elsevier.com/en/publications/magneto-optical-properties-and-size-effect-of-ferromagnetic-metal
RJPT - Green Synthesized Metal Nanoparticles, Characterization and its Antidiabetic activities - A Review
The recent progress in the area of science and technology is the emergence of nanotechnology, and that having its role in all disciplinary field. In the nanotechnology, green way of metal nanoparticles synthesis plays an essential role nowadays. The advantages of using plant extract in the metal nanoparticles synthesis is less toxic, economic, environmentally friendly. The involvement of metal nanoparticles in the management of various chronic non-communicable diseases leads to the cause for new field Nano medicine. The management for various serious diseases without any side effect is the ultimate aim of all researchers in the scientific field with the help of nanomaterials and nanostructures. Diabetes mellitus kills most of the population next to cancer worldwide, in India diabetes mellitus death rate is going to be expected in the first place by 2045 by WHO. Though various medicinal plants were used for the curative application of diabetes mellitus, the nanotechnology gives insights into the research
https://rjptonline.org/AbstractView.aspx?PID=2020-13-1-91
Flash light synthesis of noble metal nanoparticles for electrochemical applications: silver, gold, and their alloys |...Flash light synthesis of noble metal nanoparticles for electrochemical applications: silver, gold, and their alloys |...
The synthesis of noble metal nanoparticles (i.e., silver and gold) for electrochemical applications has been widely studied using mainly wet synthesis chem
https://link.springer.com/article/10.1007%2Fs10008-020-04521-5
Download From Bioimaging To Biosensors Noble Metal Nanoparticles In Biodetection
download from bioimaging to biosensors noble metal nanoparticles CELL DISEASE AFFECTS PHYSICAL GROWTHR. PANCHALI TARAFDER, KAUSHIK SARKAR, PARTHA P. COMPRISING OF PSEUDOMONAS AND PAENIBACILLUS CELLS, ON THE neighborhood OF properties. audience AND nativity OF DIFFERENT FORMULATIONS OF PSEUDOMONAS FLUORESCENS number FOR THE aut OF PLANT GROWTH AND INDUCTION OF SYSTEMIC RESISTANCE AGAINST PYRICULARIA ORYZAE IN LOWLAND RICEP.
http://sftv.org/books/download-from-bioimaging-to-biosensors%3A-noble-metal-nanoparticles-in-biodetection.htm
Formation and Stabilization of Noble Metal Nanoparticles - pdf descargar
Formation and Stabilization of Noble Metal Nanoparticles. . Biblioteca virtual para leer y descargar libros, documentos, trabajos y tesis universitarias en PDF. Material universiario, documentación y tareas realizadas por universitarios en nuestra biblioteca. Para descargar gratis y para leer online.
http://libros.duhnnae.com/2017/jun7/149802616011-Formation-and-Stabilization-of-Noble-Metal-Nanoparticles.php
Ion desorption efficiency and internal energy transfer in polymeric electrospun nanofiber-based surface-assisted laser...Ion desorption efficiency and internal energy transfer in polymeric electrospun nanofiber-based surface-assisted laser...
The understanding of the desorption mechanism in surface-assisted laser desorption/ionization (SALDI) remains incomplete because there are numerous types o
https://link.springer.com/article/10.1007%2Fs00216-019-02315-x
Electron-phonon coupling and heat dissipation in metal nanoparticles on Environmental XPRTElectron-phonon coupling and heat dissipation in metal nanoparticles on Environmental XPRT
Article Electron-phonon coupling and heat dissipation in metal nanoparticles. This review discusses electron-phonon (e-ph) coupling and heat dissipation in noble metal nanoparticles, specifically, how the time constants for these events depend on siz...
https://www.environmental-expert.com/articles/electron-phonon-coupling-and-heat-dissipation-in-metal-nanoparticles-435652
Supported transition metal nanoparticles - what makes a good catalyst? - AMOLFSupported transition metal nanoparticles - what makes a good catalyst? - AMOLF
Abstract. Catalysts are crucial for the production of fuels, chemicals and materials and for energy storage and conversion. They often consist of transition metal nanoparticles (,10 nm) as an active phase, supported on a porous material that provides stability to the system, but has 3D open porosity to allow diffusion of reactants and products. The effectiveness of a catalyst is a combination of three qualities: activity, selectivity and stability. All three are not only determined by the composition of the metal nanoparticle, but also greatly depend on factors such as the exact particle size (and particle size distribution), a redistribution of atoms within the nanoparticle under reaction conditions, the interaction between the metal nanoparticle and the support, and small amounts of additives (promoters) which can modify for instance the electronic properties or provide specific sites.. We study the performance of supported metal nanoparticles using 3D model supports (ordered mesoporous ...
https://amolf.nl/events/petradejongh
Catalytic Performance of Metal Nanoparticles Supported by Ceramic...: Ingenta ConnectCatalytic Performance of Metal Nanoparticles Supported by Ceramic...: Ingenta Connect
A composite with well-dispersed metal nanoparticles at a ceramic surface was produced by partial reduction of solid solution. It was found that a small amount of dopant, such as Al2O3, Cr2O3, or Sc2O3, accelerated the precipitation of the metal nanoparticles during the reduction. Catalytic performance of the composite for methanol reforming was evaluated. In the Ni-based catalysts, the dopant decreased the CO production by promoting a methanation reaction, while in the Co-based catalysts, the dopant did it by inducing a water-gas shift reaction. Co/MgO with Sc2O3 doping showed the most preferable reforming performance, high H2 production, and CO2 selectivity. ...
http://www.ingentaconnect.com/content/bsc/jace/2005/00000088/00000010/art00043
Metal Nanoparticles: Thermal Decomposition, Biomedicinal Applications to Cancer Treatment, and Future PerspectivesMetal Nanoparticles: Thermal Decomposition, Biomedicinal Applications to Cancer Treatment, and Future Perspectives
Monodispersed forms of metal nanoparticles are significant to overcome frightening threat of cancer. This review examined pragmatically thermal decomposition as one of the best ways to synthesize monodispersed metal nanoparticles which are stable and of small particle sizes. Controlled morphology for delivery of anticancer agent to specific cells can also be obtained with thermal decomposition. In addition to thermal decomposition, the study also looked into processes of characterization techniques, biological evaluation, toxicity of nanoparticles, and future perspectives.
https://www.hindawi.com/journals/bca/2018/9354708/
Metal Nanoparticles for Catalysis da Franklin (Feng) Tao: Royal Society of Chemistry 9781782620334 Hardcover - AbeBooks.itMetal Nanoparticles for Catalysis da Franklin (Feng) Tao: Royal Society of Chemistry 9781782620334 Hardcover - AbeBooks.it
Descrizione libro Royal Society Of Chemistry, United Kingdom, 2014. Hardback. Condizione libro: New. Language: English . Brand New Book. Catalysis is a central topic in chemical transformation and energy conversion. Thanks to the spectacular achievements of colloidal chemistry and the synthesis of nanomaterials over the last two decades, there have also been significant advances in nanoparticle catalysis. Catalysis on different metal nanostructures with well-defined structures and composition has been extensively studied. Metal nanocrystals synthesized with colloidal chemistry exhibit different catalytic performances in contrast to metal nanoparticles prepared with impregnation or deposition precipitation. Additionally, theoretical approaches in predicting catalysis performance and understanding catalytic mechanism on these metal nanocatalysts have made significant progress. Metal Nanoparticles for Catalysis is a comprehensive text on catalysis on Nanoparticles, looking at both their synthesis ...
https://www.abebooks.it/Metal-Nanoparticles-Catalysis-Franklin-Feng-Tao/20136385989/bd
Dendrimer-encapsulated metal nanoparticles: synthesis, characterization, and applications to catalysisDendrimer-encapsulated metal nanoparticles: synthesis, characterization, and applications to catalysis
The research in this dissertation examines the chemistry and applications of dendrimers in homogeneous catalysis. We examined interactions between dendrimers and charged probe molecules, prepared dendrimer-encapsulated metal nanoparticles in organic solvents, studied size-selectivity of dendrimer-encapsulted catalysts, and designed molecular rulers as in-situ probes to measure the location of dendrimer-encapsulted metal nanoparticles. The intrinsic proton binding constant and a constant that characterizes the strength of electrostatic interactions among occupied binding sites in poly(amidoamine) (PAMAM) dendrimers have been obtained by studying the effect of solution pH on the protonation of the dendrimers. The significant finding is that these two factors are greatly modulated by the unique and hydrophobic microenvironment in the dendrimer interior. Hydrophilic poly(propylene imine) (PPI) dendrimers were modified with various hydrophobic alkyl chains through an amide linkage and were then used ...
http://oaktrust.library.tamu.edu/handle/1969.1/97
Электронная книга: Shakeel Ahmed. Green Metal Nanoparticles. Synthesis, Characterization and their ApplicationsЭлектронная книга: Shakeel Ahmed. Green Metal Nanoparticles. Synthesis, Characterization and their Applications
The use of biological sources such as microbes and plants can help in synthesizing nanoparticles in a reliable and eco-friendly way. The synthesis of nanoparticles by these natural sources is characterized by processes that take place near to ambient temperature and pressures and also near neutral pH. This edited volume authored by subject specialists, provides all the latest research and builds a database of bioreduction agents to various metal nanoparticles using different precursor systems. The book also highlights the different strategies such as simplicity, cost-effectiveness, environment-friendly and easily scalable, and includes parameters for controlling the size and shape of the materials developed from the various greener methods. In order to exploit the utmost potential metal nanoparticles synthesis from the different sources such as agricultural waste, flora and fauna, food waste, microbes and biopolymer systems, it is also crucial to recognize the biochemical and molecular mechanisms of
https://books.academic.ru/book.nsf/88071741/Green+Metal+Nanoparticles.+Synthesis%2C+Characterization+and+their+Applications
Quantitative Determination of Particle-Size Dependent Active Sites in Supported Metal Nanoparticles with SHINERS | MCEC...Quantitative Determination of Particle-Size Dependent Active Sites in Supported Metal Nanoparticles with SHINERS | MCEC...
Research theme: Catalyst Diagnostics to Develop More Active Catalysts. Raman spectroscopy is a powerful method for solid catalyst characterization under operando conditions. However, its sensitivity often hampers the detection of surface adsorbates and reaction intermediates. Shell-isolated nanoparticle-enhanced Raman spectroscopy (SHINERS) has turned out to be a valuable addition to the catalyst characterization toolbox. SHINERS requires Au or Ag nanoparticles covered by a thin dielectric oxide coating, such as SiO2 or Al2O3, to minimize plasmonic side-reactions.. In this project, we will use spark ablation technology to deposit metal nanoparticles of various sizes and chemical compositions on shell-isolated Au and Ag nanoparticles (SHINs). These metal/SHINs will allow to investigate the adsorption of probe molecules, such as NO and CO, as well as performing structure-sensitive (e.g. CO2 and acetylene hydrogenation) and structure-insensitive (e.g. ethene hydrogenation) reactions under operando ...
https://mcec-researchcenter.nl/projects2/quantitative-determination-of-particle-size-dependent-active-sites-in-supported-metal-nanoparticles-with-shiners-2/
Quantitative measurements of individual gold nanoparticle scattering cross sectionsQuantitative measurements of individual gold nanoparticle scattering cross sections
The local surface plasmon resonance (LSPR) of noble metal nanoparticles has recently been exploited in numerous applications. The LSPR peak position and linewidth have been studied quite extensively, but the magnitude of the resonance has not received much attention. Analytical solutions to Maxwells Equations cannot predict the scattering cross section of arbitrarily-shaped particles at arbitrary illumination and detection angles. Dark field microscpectroscopy is a powerful tool for studying plasmon resonances of noble metal nanoparticles and for developing their applications in sensing and imaging. We present a technique for calibrating dark field microspectrometer measurements to yield quantitative spectral scattering cross sections for arbitrarily shaped particles. Values for gold nanorods and gold bipyramids are reported. The measurements suggest that, for small elongated particles, the signal can be predicted by approximations based on the total cross section ...
https://scholarship.rice.edu/handle/1911/62018
example of metal nanoparticles on titanate carrierexample of metal nanoparticles on titanate carrier
Page contains details about example of metal nanoparticles on titanate carrier . It has composition images, properties, Characterization methods, synthesis, applications and reference articles : nano.nature.com
http://nano.nature.com/nano/GR-M5699945
Hybrid Approach Predicts and Confirms Structure of Complex Metal Nanoparticles | IEN
A combined theoretical and experimental approach has allowed researchers to predict and verify the full structure of a monolayer-coated molecular metal nanoparticle. The methodology was tested on silver-thiolate nanoparticles, expanding on earlier knowledge about gold nanoparticles, and is expected to be applicable to a broad range of sizes of nanoparticles made of different elements.. In a paper published Friday, November 25, 2016, in the journal Science Advances, researchers from the Georgia Institute of Technology and the University of Toledo report on an X-ray-determined structure that authenticates the a priori prediction, and in conjunction with first-principles theoretical analysis, supports the underlying forecasting methodology.. Metal nanoparticles capped by organic ligands have fundamental and applied significance for understanding the physical and chemical principles controlling the assembly and atomic organization in nanocrystalline materials, and to their potential usage in fields ...
http://www.ien.gatech.edu/news/hybrid-approach-predicts-and-confirms-structure-complex-metal-nanoparticles
Metal nanoparticles may improve cancer treatment - Healthcanal.com : Healthcanal.comMetal nanoparticles may improve cancer treatment - Healthcanal.com : Healthcanal.com
An international team of researchers led by RMIT has investigated alternatives to gold nanoparticles, which have been shown to concentrate radiation used to treat cancer but are highly expensive and mildly toxic.. Doctoral researcher Mamdooh Alqathami said the team had identified bismuth as an ideal option, with tests showing that enhancing radiotherapy by using nanoparticles containing the heavy metal almost doubled the dose of radiation to surrounding cancerous tissue.. By enhancing radiation in the tumour, doctors may be able to decrease the initial dose of radiotherapy, which will hopefully result in fewer side effects for the patient while having the same impact on the cancer, Mr Alqathami, a researcher in the School of Medical Sciences, said.. Metal nanoparticles have shown promise in improving the efficacy of radiotherapy but there is a need to find cheaper and safer alternatives for therapeutic use.. Bismuth-based nanoparticles are an attractive option as they cost only a few dollars ...
https://www.healthcanal.com/cancers/34354-metal-nanoparticles-may-improve-cancer-treatment.html
Anisotropic metal nanoparticles: Synthesis, assembly, and optical applications<...
TY - JOUR. T1 - Anisotropic metal nanoparticles. T2 - Synthesis, assembly, and optical applications. AU - Murphy, Catherine J.. AU - Sau, Tapan K.. AU - Gole, Anand M.. AU - Orendorff, Christopher J.. AU - Gao, Jinxin. AU - Gou, Linfeng. AU - Hunyadi, Simona E.. AU - Li, Tan. PY - 2005/7/28. Y1 - 2005/7/28. N2 - This feature article highlights work from the authors laboratories on the synthesis, assembly, reactivity, and optical applications of metallic nanoparticles of nonspherical shape, especially nanorods. The synthesis is a seed-mediated growth procedure, in which metal salts are reduced initially with a strong reducing agent, in water, to produce ∼4 nm seed particles. Subsequent reduction of more metal salt with a weak reducing agent, in the presence of structure-directing additives, leads to the controlled formation of nanorods of specified aspect ratio and can also yield other shapes of nanoparticles (stars, tetrapods, blocks, cubes, etc.). Variations in reaction conditions and ...
https://augusta.pure.elsevier.com/en/publications/anisotropic-metal-nanoparticles-synthesis-assembly-and-optical-ap
OSA | Investigating the distance limit of a metal nanoparticle based spectroscopic rulerOSA | Investigating the distance limit of a metal nanoparticle based spectroscopic ruler
Conventional Förster resonance energy transfer (FRET) processes involving a pair of fluorophore and organic quencher are restricted to an upper distance limit of ~10 nm. The application of a metal nanoparticle as a quencher can overcome the distance barrier of the traditional FRET technique. However, no standard distance dependence of this resonance energy transfer (RET) process has been firmly established. We have investigated the nonradiative energy transfer process between an organic donor (fluorescein) and gold nanoparticle quencher connected by double stranded (ds) DNA. The quenching efficiency of the gold nanoparticle as a function of distance between the donor and acceptor was determined by time-resolved lifetime analyses of the donor. Our results showed a 1/d 4 distance dependence for the RET process for longer distances (,10 nm) and 1/d 6 distance dependence for shorter distances (,10 nm). Our results clearly indicate the applicability of metal nanoparticle based quenchers for studying ...
https://www.osapublishing.org/boe/abstract.cfm?uri=boe-2-6-1727
PPT - Optical Properties of Metal Nanoparticles PowerPoint Presentation - ID:6716843PPT - Optical Properties of Metal Nanoparticles PowerPoint Presentation - ID:6716843
Optical Properties of Metal Nanoparticles. Sriharsha Karumuri. Introduction. Why nanoparticles are different from bulk materials? Nanoparticles are different from bulk materials and isolated molecules because of their unique optical, electronic and chemical properties. Slideshow 6716843 by joyceta-bravo
https://www.slideserve.com/joyceta-bravo/optical-properties-of-metal-nanoparticles
US20090074705A1 - Process for forming metal nanoparticles in polymers - Google Patents
A one step process is described for forming metal nanoparticles in polymers at atmospheric pressure and room temperature or with mild heating and stirring. The inventive process includes addition of nanoparticle precursor salts, e.g. HAuCl 4 or AgNO 3 into a
https://patents.google.com/patent/US20090074705
Metal Nanoparticles Size and Zeta Potential Analysis - HORIBAMetal Nanoparticles Size and Zeta Potential Analysis - HORIBA
Metal nanoparticles (also known as colloidal metal) have been around for a very long time, with the original scientific references dating over one hundred and fifty years ago*. Both pure metal and metal oxide colloids are used in a wide variety of applications including catalysts, ferrofluids, biological markers, and many others. Particle size and zeta potential of these suspensions are critical physical parameters that affect functionality and stability. The SZ-100 Nanoparticle Analyzer is an excellent analytical tool for determining particle size and zeta potential of metal colloids. ...
https://www.horiba.com/scientific/products/particle-characterization/applications/nanoparticles/metal-nanoparticles/?L=386
Investigation of the ligand shells of homo-ligand and mixed-ligand monolayer protected metal nanoparticles : a scanning...Investigation of the ligand shells of homo-ligand and mixed-ligand monolayer protected metal nanoparticles : a scanning...
Monolayer Protected Metal Nanoparticles have recently found widespread use in and are the focus of intensive study in many areas of scientific research ranging from biology to physics to medicine. Consisting of a nanoscale, crystalline, metallic core surrounded by a self-assembled monolayer of ligands (a 3-D SAM or ligand shell), their appeal and utility stem from their numerous unique properties-many of which arise and are modulated by the intimate spatial and electronic contact between core and shell. The ligand shell controls the particles interactions with its environment (e.g. sensing, assembly, and electron transfer ability). Furthermore, the ability to manipulate and assemble such nanomaterials through the ligand shell is paramount to their incorporation into and the development of new nanoparticle based materials and devices. However, little is known of the exact composition and packing arrangements of molecules within the ligand shell, and even less so on how to control the resulting ...
https://dspace.mit.edu/handle/1721.1/39548
Ostwald ripening of charged supported metal nanoparticles: Schottky modelOstwald ripening of charged supported metal nanoparticles: Schottky model
Due to high surface area, supported metal nanoparticles are thermodynamically prone to sintering. The experimental studies of this process exhibit sometimes transient bimodal particle size distributions. Such observations may result from the support heterogeneity. Looking retrospectively, one can also find the prediction that in the case of Ostwald ripening this feature can be related to charge of metal nano particles. In real systems, this charge is often associated with the metal support interaction and can be interpreted in the framework of the Schottky model. Using this model, the author shows that the charge redistribution cannot be behind bimodal particle size distributions. Moreover, the corresponding contribution to the driving force for Ostwald ripening is typically much smaller than the conventional one.
http://publications.lib.chalmers.se/publication/218125-ostwald-ripening-of-charged-supported-metal-nanoparticles-schottky-model
Electrochemical surface oxide characteristics of metal nanoparticles (Mn, Cu and Al) and the relation to toxicityElectrochemical surface oxide characteristics of metal nanoparticles (Mn, Cu and Al) and the relation to toxicity
Most metal nanoparticles (NPs), except noble metal NPs, rapidly form a thin surface oxide in ambient conditions. The protective properties of these oxides improve or worsen depending on the environment, e.g., the human lung. Several properties, including the chemical/electrochemical stability and defect density, determine the capacity of these surface oxides to hinder the bulk metal from further oxidation (corrosion). The aim of this study was to investigate whether electrochemical surface oxide characterization of non-functionalized base metal NPs of different characteristics (Al, Mn and Cu) can assist in understanding their bioaccessibility (metal release) in cell media (DMEM+) and their cytotoxic properties following exposure in lung epithelial (A549) cells. The composition and valence states of surface oxides of metal NPs and their electrochemical activity were investigated using an electrochemical technique based on a graphite paste electrode to perform cyclic voltammetry in buffer ...
http://kth.diva-portal.org/smash/record.jsf?pid=diva2:1006903
OSA | Direct observation of a propagating, planar-waveguide surface mode in a discontinuous film of metal nanoparticlesOSA | Direct observation of a propagating, planar-waveguide surface mode in a discontinuous film of metal nanoparticles
polarized guided waves that propagate confined to the surface of a two-dimensional array of silver (Ag) nanoparticles of average particle diameter and film thickness of approximately 400 and 154 nm, respectively, and comparable interparticle spacing. We interpret resonant features in the attenuated total reflection angular spectrum as arising from the excitation of guided waves in our discontinuous samples. The excitation of these waves is a direct consequence of the interaction of the light field with the localized resonance of the conduction electrons in the individual metal nanoparticles.. © 2000 Optical Society of America. Full Article , PDF Article ...
https://www.osapublishing.org/ol/abstract.cfm?URI=ol-25-15-1071
Apoptotic damage during co-culture of lung epithelial cells and macrophages in the presence of metal nanoparticles is modulated...
TY - JOUR. T1 - Apoptotic damage during co-culture of lung epithelial cells and macrophages in the presence of metal nanoparticles is modulated by TNF-α from macrophages. AU - Kim, Ki Heon. AU - Kim, Seung Yeul. AU - Chun, Bok Hwan. AU - Lee, Yong Kwon. AU - Chung, Namhyun. PY - 2011. Y1 - 2011. UR - http://www.scopus.com/inward/record.url?scp=79952721524&partnerID=8YFLogxK. UR - http://www.scopus.com/inward/citedby.url?scp=79952721524&partnerID=8YFLogxK. U2 - 10.3839/jksabc.2011.004. DO - 10.3839/jksabc.2011.004. M3 - Article. AN - SCOPUS:79952721524. VL - 54. SP - 30. EP - 36. JO - Journal of Applied Biological Chemistry. JF - Journal of Applied Biological Chemistry. SN - 1976-0442. IS - 1. ER - ...
https://koreauniv.pure.elsevier.com/en/publications/apoptotic-damage-during-co-culture-of-lung-epithelial-cells-and-m
DSpace at KIST: Graphite carbon-encapsulated metal nanoparticles derived from Prussian blue analogs growing on natural loofa as...DSpace at KIST: Graphite carbon-encapsulated metal nanoparticles derived from Prussian blue analogs growing on natural loofa as...
Aluminum-ion batteries (AIBs) are attracting increasing attention as a potential energy storage system owing to the abundance of Al sources and high charge density of Al3+. However, suitable cathode materials to further advance high-performing AIBs are unavailable. Therefore, we demonstrated the compatibility of elemental metal nanoparticles (NPs) as cathode materials for AIBs. Three types of metal NPs ([email protected], [email protected], [email protected]) were formed by in-situ growing Prussian blue analogs (PBAs, Co[Co(CN)6], Fe[Fe(CN)6] and Co[Fe(CN)6]) on a natural loofa (L) by a room-temperature wet chemical method in aqueous bath, followed by a carbonization process. The employed L effectively formed graphite C-encapsulated metal NPs after heat treatment. The discharge capacity of [email protected] was superior (372 mAh g− 1) than others (103 mAh g− 1 for [email protected] and 75 mAh g− 1 for [email protected]). The novel design results in [email protected] with an outstanding long-term charge/discharge cycling performance (over 1,000 cycles) with a ...
http://pubs.kist.re.kr/handle/201004/70009
Encapsulating surface-clean metal nanoparticles inside metal-organic frameworks for enhanced catalysis using a novel γ-ray...Encapsulating surface-clean metal nanoparticles inside metal-organic frameworks for enhanced catalysis using a novel γ-ray...
A facile and efficient γ-radiation strategy has been developed to incorporate surface-clean metal nanoparticles (NPs) into UiO-66-NH2 in the absence of stabilizing agents and additional reductants. This approach is enabled by metal ion reduction with active e−aq and H˙ species derived from water radiolysis. Inorganic Chemistry Frontiers HOT articles for 2017
http://pubs.rsc.org/en/content/articlelanding/2018/qi/c7qi00577f/unauth
example of stabilized metal nanoparticlesexample of stabilized metal nanoparticles
Page contains details about example of stabilized metal nanoparticles . It has composition images, properties, Characterization methods, synthesis, applications and reference articles : nano.nature.com
http://nano.nature.com/nano/GR-M654199
Stabilised Bimetallic Metal Nanoparticles - Dial-a-Molecule EPSRC Grand Challenge Network WebsiteStabilised Bimetallic Metal Nanoparticles - Dial-a-Molecule EPSRC Grand Challenge Network Website
Stabilised Bimetallic Metal Nanoparticles in Tailor-made Carbon Nanoreactors as Catalysts for Continuous-Flow Biomass Valorisation with Supercritical Fluids Dr. R. A. Bourne,a Dr. T. W. Chamberlain,a,b Dr. U. Hintermair,c & Dr. C. D. Smithd aSchool of Process, Environmental and Mechanical Engineering, University of Leeds, bSchool of Chemistry, University of Nottingham, cCentre for Sustainable Chemical Technologies, University of Bath, dSchool…
https://generic.wordpress.soton.ac.uk/dial-a-molecule/stabilised-bimetallic-metal-nanoparticles/
Western Blot and Immunoblotting Products - Cytodiagnostics
Western Blot and Immunoblotting Products. Read about how to use gold nanoparticles and other noble metal nanoparticles in immunoblotting in the following tech note: Immunoblotting Using Noble Metal Nanoparticles Probes
http://cytodiagnostics.com/store/pc/Western-Blot-and-Immunoblotting-Products-c367.htm
Western Blot and Immunoblotting Products - Cytodiagnostics
Western Blot and Immunoblotting Products. Read about how to use gold nanoparticles and other noble metal nanoparticles in immunoblotting in the following tech note: Immunoblotting Using Noble Metal Nanoparticles Probes
https://cytodiagnostics.com/store/pc/Western-Blot-and-Immunoblotting-Products-c324.htm
TECH - Page 9 - viralinusaTECH - Page 9 - viralinusa
Introduction Functionalized gold nanoparticles (AuNPs) have prospective as antimicrobial products to counter, for example, fungi and bacteria [1]. Increasing efforts have actually been committed to research study in this field, especially in the advancement of metal nanoparticles (such as copper, silver and gold nanoparticles) as anti-bacterial agents [1-4] The most common target for antibacterial agents has been gram-negative germs, owing to the multi-drug resistance phenomena observed in gram-negative bacteria [2-5]. Advancements in this area have actually been influenced by the need to discover the type of metal nanoparticles, and the functionalization of such nanoparticles, that will display the best…. Further Info ...
http://viralinusa.com/blog/category/technology-gagets/page/9/
MOVIES - Page 12 - viralinusaMOVIES - Page 12 - viralinusa
Introduction Functionalized gold nanoparticles (AuNPs) have prospective as antimicrobial products to counter, for example, fungi and bacteria [1]. Increasing efforts have actually been committed to research study in this field, especially in the advancement of metal nanoparticles (such as copper, silver and gold nanoparticles) as anti-bacterial agents [1-4] The most common target for antibacterial agents has been gram-negative germs, owing to the multi-drug resistance phenomena observed in gram-negative bacteria [2-5]. Advancements in this area have actually been influenced by the need to discover the type of metal nanoparticles, and the functionalization of such nanoparticles, that will display the best…. Further Info ...
http://viralinusa.com/blog/category/movies-trailors-reviews/page/12/
Download Noble Metal Nanoparticles 2004
It may applies up to 1-5 dams before you received it. The information will manage lit to your Kindle email. It may seeks up to 1-5 pens before you provided it.
http://www.aeogroup.net/images/library.php?q=download-Noble-Metal-Nanoparticles-2004.html
Surface-enhanced Raman spectroscopy of molecular motors | (2005) | Inya-Agha | Publications | SpieSurface-enhanced Raman spectroscopy of molecular motors | (2005) | Inya-Agha | Publications | Spie
Noble metal nanoparticles interact strongly with visible light due to resonant excitation of conduction electron oscillations, an interaction referred to as a local surface plasmon resonance (LSPR) interaction. This LSPR interaction results in an enhancement of the electromagnetic field surrounding the nanoparticle, with a concomitant enhancement of optical signals. Recent interest in SER spectroscopy (SERS) has been rekindled by the observation of single molecule SERS. Nanofabrication provides a method for producing metal substrates for SERS with well-defined size and shape characteristics. Gold nanopillar structures are fabricated for this work by electron beam lithography. Rabbit skeletal-myosin-II HMM and actin can be produced in gram quantities and provide the basis for a highly reproducible in-vitro motility assay system. Using this well established assay linked with SERS we can look at how the heads of myosin interact with filaments of actin to produce steps in greater detail. This ...
http://spie.org/Publications/Proceedings/Paper/10.1117/12.599947
Nanotechnology Now - News Story: CNTs as Templates for One-Dimensional Nanoparticle AssembliesNanotechnology Now - News Story: CNTs as Templates for One-Dimensional Nanoparticle Assemblies
Spanish researchers have shown that carbon nanotubes (CNTs) constitute the ideal templates for the formation of one-dimensional strings of metal nanoparticles, with potential uses as waveguides. Professor Luis Liz-Marz n, who heads the Nanoparticles and Nanostructures Group at the University of Vigo in Spain, explained to Nanowerk: Linear arrays would have extremely interesting applications, for instance, in the construction of nanoelectronic circuits, but could also be used in photonics, since wave guiding via surface plasmons has been predicted for metal nanoparticle chains. Source: ...
http://www.nanotech-now.com/news.cgi?story_id=14400
Sensors | Free Full-Text | Nanomaterials as Analytical Tools for Genosensors | HTMLSensors | Free Full-Text | Nanomaterials as Analytical Tools for Genosensors | HTML
Nanomaterials are being increasingly used for the development of electrochemical DNA biosensors, due to the unique electrocatalytic properties found in nanoscale materials. They offer excellent prospects for interfacing biological recognition events with electronic signal transduction and for designing a new generation of bioelectronic devices exhibiting novel functions. In particular, nanomaterials such as noble metal nanoparticles (Au, Pt), carbon nanotubes (CNTs), magnetic nanoparticles, quantum dots and metal oxide nanoparticles have been actively investigated for their applications in DNA biosensors, which have become a new interdisciplinary frontier between biological detection and material science. In this article, we address some of the main advances in this field over the past few years, discussing the issues and challenges with the aim of stimulating a broader interest in developing nanomaterial-based biosensors and improving their applications in disease diagnosis and food safety examination.
http://www.mdpi.com/1424-8220/10/1/963/htm
Scientists discover networks of metal nanoparticles are culprits in alloy corrosionScientists discover networks of metal nanoparticles are culprits in alloy corrosion
Oxide scales are supposed to protect alloys from extensive corrosion, but scientists at U.S. Department of Energys Argonne National Laboratory have discovered metal nanoparticle chinks in this armor.
https://phys.org/news/2008-08-scientists-networks-metal-nanoparticles-culprits.html
Heterodimers for in Situ Plasmonic Spectroscopy: Cu Nanoparticle Oxidation Kinetics, Kirkendall Effect, and Compensation in the...Heterodimers for in Situ Plasmonic Spectroscopy: Cu Nanoparticle Oxidation Kinetics, Kirkendall Effect, and Compensation in the...
The ability to study oxidation, reduction, and other chemical transformations of nanoparticles in real time and under realistic conditions is a nontrivial task due to their small dimensions and the often challenging environment in terms of temperature and pressure. For scrutinizing oxidation of metal nanoparticles, visible light optical spectroscopy based on the plasmonic properties of the metal has been established as a suitable method. However, directly relying on the plasmonic resonance of metal nanoparticles as a built-in probe to track oxidation has a number of drawbacks, including the loss of optical contrast in the late oxidation stages. To address these intrinsic limitations, we present a plasmonic heterodimer-based nanospectroscopy approach, which enables continuous self-referencing by using polarized light to eliminate parasitic signals and provides large optical contrast all the way to complete oxidation. Using Au-Cu heterodimers and combining experiments with finite-difference time-domain
https://research.chalmers.se/en/publication/509024
Nanotechnology Now - News Story: Nanoparticle Assembly Enters the Fast LaneNanotechnology Now - News Story: Nanoparticle Assembly Enters the Fast Lane
The speed of nanoparticle assembly can be accelerated with the assistance of the molecule that carries life s genetic instructions, DNA, a team of researchers at the U.S. Department of Energy s Brookhaven National Laboratory recently found. Nanoparticles, particles with dimensions on the order of billionths of a meter, could potentially be used for more efficient energy generation and data storage, as well as improved methods for diagnosing and treating disease. Source: ...
http://www.nanotech-now.com/news.cgi?story_id=17873
Efects of silver nanoparticle on the physical properties of syndiotactic polypropyleneEfects of silver nanoparticle on the physical properties of syndiotactic polypropylene
The effects of silver nanoparticle on the physical properties of syndiotactic polypropylene (sPP) were investigated in terms of rheological responses and crystallization behavior under shear. Silver nanoparticle played as the nucleating agent of sPP by increasing crystallization temperature (Tc) and heat of crystallization (ΔHc). The introduction of silver nanoparticles more than 1 wt% brought about the rise of dynamic viscosity when compared to pure sPP. sPP with 5 wt% silver nanoparticle exhibited the higher tan δ and lower relaxation time than the others in the low frequency range. However, the effects of silver nanoparticle on the rheological properties became less noticeable when the loading level was higher than 5 wt%.
http://nsti.org/procs/Nanotech2007v2/2/T80.521
Effects of silver nanoparticles on the interactions of neuron- and glia-like cells: Toxicity, uptake mechanisms, and lysosomal...
TY - JOUR. T1 - Effects of silver nanoparticles on the interactions of neuron- and glia-like cells. T2 - Toxicity, uptake mechanisms, and lysosomal tracking. AU - Hsiao, I. Lun. AU - Hsieh, Yi Kong. AU - Chuang, Chun Yu. AU - Wang, Chu Fang. AU - Huang, Yuh Jeen. PY - 2017/6/1. Y1 - 2017/6/1. N2 - Silver nanoparticles (AgNPs) are commonly used nanomaterials in consumer products. Previous studies focused on its effects on neurons; however, little is known about their effects and uptake mechanisms on glial cells under normal or activated states. Here, ALT astrocyte-like, BV-2 microglia and differentiated N2a neuroblastoma cells were directly or indirectly exposed to 10 nm AgNPs using mono- and co-culture system. A lipopolysaccharide (LPS) was pretreated to activate glial cells before AgNP treatment for mimicking NP exposure under brain inflammation. From mono-culture, ALT took up the most AgNPs and had the lowest cell viability within three cells. Moreover, AgNPs induced H2O2 and NO from ...
https://tmu.pure.elsevier.com/zh/publications/effects-of-silver-nanoparticles-on-the-interactions-of-neuron-and
Silver Nanoparticles Inhibit Vaccinia virus Infection by Preventing Vi by John C. Trefry and Dawn P. WooleySilver Nanoparticles Inhibit Vaccinia virus Infection by Preventing Vi by John C. Trefry and Dawn P. Wooley
Silver nanoparticles have been shown to inhibit viruses. However, very little is known about the mechanism of antiviral activity. This study tested the hypothesis that 25-nm silver nanoparticles inhibited Vaccinia virus replication by preventing viral entry. Plaque reduction, confocal microscopy, and beta-galactosidase reporter gene assays were used to examine viral attachment and entry in the presence and absence of silver nanoparticles. To explore the mechanism of inhibition, viral entry experiments were conducted with silver nanoparticles and small interfering RNAs designed to silence the gene coding for p21-activated kinase 1, a key mediator of macropinocytosis. The silver nanoparticles caused a 4- to 5-log reduction in viral titer at concentrations that were not toxic to cells. Virus was capable of adsorbing to cells but could not enter cells in the presence of silver nanoparticles. Virus particles that had adsorbed to cells in the presence of silver nanoparticles were found to be infectious upon
https://corescholar.libraries.wright.edu/ncbp/946/
Sci. Pharm. | Free Full-Text | A Biological Approach to the Synthesis of Silver Nanoparticles with Streptomyces sp JAR1 and its...Sci. Pharm. | Free Full-Text | A Biological Approach to the Synthesis of Silver Nanoparticles with Streptomyces sp JAR1 and its...
The biological approach to synthesize metal nanoparticles is an important aspect of current nanotechnology research. Silver nanoparticles have been well-known for their inhibitory and antimicrobial effects. The ever-increasing antibiotic resistance in pathogenic and opportunistic microorganisms is a major threat to the health care industry. In the present investigation, silver nanoparticles have been successfully biosynthesized by Streptomyces sp JAR1. Biosynthesized silver nanoparticles were characterized by means of several analytical techniques including a UV-Visible spectrophotometer, Fourier transform infrared spectroscopy, X-ray diffraction pattern analysis, and atomic force microscopy. An evaluation of the antimicrobial activity of silver nanoparticles (AgNPs) was carried out against clinically important pathogenic microorganisms. The metal nanoparticles were also evaluated for their combined effects with antibiotics against the clinical pathogens. The anti-bacterial activities of the antibiotics
http://www.mdpi.com/2218-0532/81/2/607
Biosynthesis of Silver nanoparticle using aqueous extract of Saraca asoca leaves, its characterization and antimicrobial...Biosynthesis of Silver nanoparticle using aqueous extract of Saraca asoca leaves, its characterization and antimicrobial...
The use of less hazardous chemicals or natural material in place of toxic chemical for the formation of metal nanoparticle is known as green synthesis. The present paper deals with greener approach for the synthesis of silver (Ag) nanoparticles. The Saraca asoca plant leaves extract solution was used for the silver nanoparticles. Confirmation of Ag nanoparticles has been done using various characterization techniques viz. structural by X-Ray Diffraction (XRD), morphological analysis by Scanning Electron Microscopy (SEM), Atomic Force Microscopy (AFM) and elemental analysis by Energy Dispersive X-ray Spectroscopy (EDX). The particle size of silver nanoparticle is found to be 24.85 nm. The particle exhibits good antibacterial properties against Staphylococci aures, Streptococci pyogens, Salmonella typhi.
http://www.ijnd.ir/article_662234.html
Functionalized bio-nanoparticles in immunosensing using surface-enhanced raman scattering methods<...
TY - GEN. T1 - Functionalized bio-nanoparticles in immunosensing using surface-enhanced raman scattering methods. AU - Lin, Chi Chang. AU - Yu, Chen Yuan. AU - Yang, Ying Mei. AU - Chen, Yan Fu. AU - Chang, Hsien Chang. PY - 2009/10/12. Y1 - 2009/10/12. N2 - An unique, sensitive, and highly specific immunoassay system using gold nanoparticles and Surface-Enhanced Raman Spectroscopy (SERS) is described. To demonstrate the analytical capabilities of the new technique, Raman reporter (DTNB) that is coimmobilized with biospecific anti-protein A on gold nanoparticles (AuNP). Anti-protein A-AuNP-DTNB, which combing both electromagnetic field and chemical enhancement, was used to exploits the SERS-derived signal. A dynamic range of 2-3 orders of magnitude and 1-10 pg/mL of detection limitation of protein A were achieved. The results indicated this new technique could be used in clinical diagnostic applications with fast, high sensitivity and highthroughput screening of antibodies.. AB - An unique, ...
https://researchoutput.ncku.edu.tw/en/publications/functionalized-bio-nanoparticles-in-immunosensing-using-surface-e
Gold Nanoparticles Market Worth $4.99 Billion By 2020: Research Report by Hexa Research - Get NewsGold Nanoparticles Market Worth $4.99 Billion By 2020: Research Report by Hexa Research - Get News
Gold nanoparticles reflect different colors when exposed to light. Gold nanoparticles properties can be changed by altering their structure, shape and size. These advantages have been driving the global gold nanoparticles market in major end-use industries including electronics, sensory probes, therapeutic agents and medical applications. Gold nanoparticles are available at nano scale size ranging from 5nm to 100nm. Gold nanoparticles market has been witnessing strong growth over the last few years on account of increasing demand from medical and dentistry sector and trend is expected to continue over the forecast period. Growing application scope of nanotechnology in medical sector especially in diagnostics and imaging application is the key factor expected to drive the market over the next six years. Gold nanoparticles are used in detection of tumor cells and cancer drug delivery. These advantageous factors are expected to boost nanoparticles demand over the forecast period. Gold nanoparticles ...
http://www.getnews.info/564345/gold-nanoparticles-market-worth-499-billion-by-2020-research-report-by-hexa-research.html
Size and surface area dependent toxicity of silver nanoparticles in zebrafish embryos (Danio rerio)
Many studies addressing the toxicity of silver nanomaterials have found that smaller sized silver nanoparticles are usually more toxic to organisms and in cell culture than particles of larger sizes yet it is not entirely clear why. We investigated the size dependent toxicity of silver nanoparticles by measuring the response of embryonic zebrafish (Danio rerio) following exposure to a library of thirteen distinct silver nanoparticle size distributions with mean diameters between 8.9 nm and 112.6 nm. Data analysis using dose‐response modeling revealed that silver nanoparticles (AgNP) induced embryo toxicity that is dependent on the total surface area and not on the mass or particle number in solution. Included in this study is a comparison between embryo toxicity induced by silver nitrate (AgNO₃) and AgNPs for cardiovascular endpoints, as well as an investigation into the influence of the chorion on AgNP toxicity. This study demonstrates the importance of using alternative dose metrics in ...
https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/wh246w09k
Silver nanoparticle toxicity to Daphnia magna is a function of dissolved silver concentration on Environmental XPRTSilver nanoparticle toxicity to Daphnia magna is a function of dissolved silver concentration on Environmental XPRT
Article Silver nanoparticle toxicity to Daphnia magna is a function of dissolved silver concentration. The most persistent question regarding the toxicity of silver nanoparticles (AgNPs) is whether this toxicity is due to the nanoparticles themselves...
https://www.environmental-expert.com/articles/silver-nanoparticle-toxicity-to-daphnia-magna-is-a-function-of-dissolved-silver-concentration-378659
Surface-Enhanced Raman Scattering in Small Noble-Metal NanoparticlesSurface-Enhanced Raman Scattering in Small Noble-Metal Nanoparticles
We present a microscopic theory of quantum-size effects in surface-enhanced Raman scattering (SERS) from molecules adsorbed on small metal nanoparticles. In noble-metal nanoparticles, the confining potential has different effect on s-band and d-band electrons. Namely, the spillout of delocalized sp-electrons beyond the classical nanoparticle boundary results in an incomplete embedding of s-electron distribution in the background of localized d-electrons whose density profile follows more closely the classical shape. We demonstrate that a reduction of d-electron screening in the surface layer leads to the enhancement of the surface plasmon local field acting on a molecule located in a close proximity to metal surface. Our numerical calculations of Raman enhancement factor, performed using time-dependent local density approximation, show additional enhancement of the Raman signal which becomes more pronounced for small nanoparticles due to the larger ratio of surface layer to overall nanoparticle size.
http://www.nsti.org/procs/Nanotech2005v2/1/W912.01
Multiplexed DNA detection with DNA-functionalized silver and silver/gold nanoparticle superstructure probes<...
TY - JOUR. T1 - Multiplexed DNA detection with DNA-functionalized silver and silver/gold nanoparticle superstructure probes. AU - Kim, Ji Young. AU - Lee, Jae-Seung. PY - 2012/1/20. Y1 - 2012/1/20. N2 - DNA-functionalized silver and silver/gold bimetallic nanoparticle superstructure probes with controllable sizes and optical properties are synthesized using monothiol DNA and dithiothreitol. The superstructures exhibit a very narrow size distribution, which can be easily controlled by balancing the ratio of dithiothreitol and DNA. These superstructures assemble reversibly in a highly cooperative manner, and are SERS active. Multiplexed colorimetric detection of DNA targets using these superstructure probes has been demonstrated to identify three different DNA target sequences that are associated with three lethal diseases, respectively.. AB - DNA-functionalized silver and silver/gold bimetallic nanoparticle superstructure probes with controllable sizes and optical properties are synthesized using ...
https://koreauniv.pure.elsevier.com/en/publications/multiplexed-dna-detection-with-dna-functionalized-silver-and-silv
Extracellular biosynthesis and characterization of silver nanoparticles by using bacillus cereus gad 20 and their antibacterial...
The use of bacterial strains in the synthesis of silver nanoparticles emerges as an eco-friendly and exciting approach towards the field of research in life sciences. In this present work, microbial production of silver nanoparticles was investigated using the bacterial strain Bacillus cereus GAD 20. The test bacterium was isolated from soil samples from Gadchiroli district of Maharashtra state grown on Hichrome Bacillus Agar and Bacillus Differentiation Agar and further identified on the basis of 16S rRNA. Synthesized silver nanoparticles were characterized by UV-Vis spectroscopy and the maximum absorbance was found to be around λ-427nm. The particle size of silver nanoparticles was studied by Scanning Electron Microscopy (SEM). FTIR analysis confirms the presence of proteins as stabilizing agents. The antibacterial activity of silver nanoparticles was studied against multi drug resistant bacterial strains of Escherichia.coli and Staphylococcus.aureus. Zone of inhibition of microbes in ...
http://journalcra.com/article/extracellular-biosynthesis-and-characterization-silver-nanoparticles-using-bacillus-cereus
Using Plasmonic Metal Nanoparticles to Enhance Solar Cell Efficiency - Bangladesh Making Significant Progress in Renewable...Using Plasmonic Metal Nanoparticles to Enhance Solar Cell Efficiency - Bangladesh Making Significant Progress in Renewable...
Using Plasmonic Metal Nanoparticles to Enhance Solar Cell Efficiency - Bangladesh Making Significant Progress in Renewable Energy Technology
http://www.rericjournal.ait.ac.th/index.php/reric/article/view/2525/pdf
Decoration of multi-walled carbon nanotubes by metal nanoparticles and metal oxides using chemical evaporation methodDecoration of multi-walled carbon nanotubes by metal nanoparticles and metal oxides using chemical evaporation method
1. Introduction. Carbon nanotubes (CNTs) have been proposed as the ideal metal catalyst support for electrocatalytic and sensing applications because of their unique electrical properties, high chemical stability and high surface-to-volume ratios.1 Decoration of the walls of carbon nanotubes (CNTs)2 with functional groups3 and/or nanoparticles has been performed to add additional functionality to CNTs. In recent years, decoration of CNTs has been used to improve performance of their various applications4 such as making nanotubes magnetic,5 to grow secondary structures inside the nanotubes to increase the available surface for catalysis6 or in electronics.7 Modern electronics devices based on carbon nanotubes (CNTs) have shown that their performance is influenced by a potential barrier existing at the metal-CNT contact that governs the electron injection into the carbon nanotubes.7. To functionalize the CNTs with metal nanoparticles, an ionic adsorption followed by a direct heating can be ...
http://www.scielo.org.za/scielo.php?script=sci_arttext&pid=S0379-43502013000100029&lng=pt&nrm=iso&tlng=en
Complexation of polysaccharide and monosaccharide with thiolate boronic acid capped on silver nanoparticle. - Semantic ScholarComplexation of polysaccharide and monosaccharide with thiolate boronic acid capped on silver nanoparticle. - Semantic Scholar
Synthesized thiolate boronic acid was found to complex with both a polysaccharide (dextran) and a monosaccharide (glucose) with similar affinities but displayed more affinity with dextran than with glucose when capped as a ligand on silver nanoparticle. Coupling on multiple sites of dextran, the silver particles were aggregated. The aggregated particles displayed a decrease of absorbance at 397 nm and an increase at 640 nm. Luminescence intensity displayed an upward deviation increase with the concentration of dextran. The luminescence spectral change was ascribed to surface-enhanced fluorescence by the enhanced field from the aggregated metallic particles.
https://www.semanticscholar.org/paper/Complexation-of-polysaccharide-and-monosaccharide-Zhang-Geddes/26d2c3656babc7ab5e927e830e16a8a67b071592
A functionalized gold nanoparticles and Rhodamine 6G based fluorescent sensor for high sensitive and selective detection of...A functionalized gold nanoparticles and Rhodamine 6G based fluorescent sensor for high sensitive and selective detection of...
A gold-nanoparticles (Au NPs)-Rhodamine 6G (Rh6G) based fluorescent sensor for detecting Hg(II) in aqueous solution has been developed. Water-soluble and monodisperse gold nanoparticles (Au NPs) has been prepared facilely and further modified with thioglycolic acid (TGA). Free Rh6G dye was strongly fluorescent in bulk solution. The sensor system composing of Rh6G and Au NPs fluoresce weakly as result of fluorescence resonance energy transfer (FRET) and collision. The fluorescence of Rh6G and Au NPs based sensor was gradually recovered due to Rh6G units departed from the surface of functionalized Au NPs in the presence of Hg(II). Based on the modulation of fluorescence quenching efficiency of Rh6G-Au NPs by Hg(II) at pH 9.0 of teraborate buffer solution, a simple, rapid, reliable and specific turn-on fluorescent assay for Hg(II) was proposed. Under the optimum conditions, the fluorescence intensity of sensor is proportional to the concentration of Hg(II). The calibration graphs are linear over the range
https://www.semanticscholar.org/paper/A-functionalized-gold-nanoparticles-and-Rhodamine-Chen-Zheng/83f2a20aafc76f978db605cc9ca0fdaf2c07aaab
Measurement of adsorption constants of laccase on gold nanoparticles to evaluate the enhancement in enzyme activity of adsorbed...Measurement of adsorption constants of laccase on gold nanoparticles to evaluate the enhancement in enzyme activity of adsorbed...
TY - JOUR. T1 - Measurement of adsorption constants of laccase on gold nanoparticles to evaluate the enhancement in enzyme activity of adsorbed laccase. AU - Almeida, Miguel Peixoto de AU - Quaresma, Pedro. AU - Sousa, Susana. AU - Couto, Cláudia. AU - Gomes, Inês. AU - Krippahl, Ludwig. AU - Franco, Ricardo. AU - Pereira, Eulália. N1 - Marta Giza is acknowledged for expert utilization of the UCSF Chimera package. Chimera is developed by the Resource for Biocomputing, Visualization, and Informatics at the University of California, San Francisco (supported by NIGMS P41-GM103311). This work was supported by (a) Unidade de Ciencias Biomoleculares Aplicadas-UCIBIO which is financed by Portuguese national funds from FCT/MEC (UID/Multi/04378/2013) and co-financed by the ERDF under the PT2020 Partnership Agreement (POCI-01-0145-FEDER-007728); and NOVA LINCS UID/CEC/04516/2013; and (b) European Union (FEDER funds through COMPETE) and National Funds (FCT, Fundacao para a Ciencia e Tecnologia), under ...
https://novaresearch.unl.pt/en/publications/measurement-of-adsorption-constants-of-laccase-on-gold-nanopartic
OPUS at UTS: Novel screening test for celiac disease using peptide functionalised gold nanoparticles - Open Publications of UTS...OPUS at UTS: Novel screening test for celiac disease using peptide functionalised gold nanoparticles - Open Publications of UTS...
The Author(s) 2018. Published by Baishideng Publishing Group Inc. All rights reserved. AIM To develop a screening test for celiac disease based on the coating of gold nanoparticles with a peptide sequence derived from gliadin, the protein that triggers celiac disease. METHODS 20 nm gold nanoparticles were first coated with NeutrAvidin. A long chain Polyethylene glycol (PEG) linker containing Maleimide at the Ω-end and Biotin group at the α-end was used to ensure peptide coating to the gold nanoparticles. The maleimide group with the thiol (-SH) side chain reacted with the cysteine amino acid in the peptide sequence and the biotinylated and PEGylated peptide was added to the NeutrAvidin coated gold nanoparticles. The peptide coated gold nanoparticles were then converted into a serological assay. We used the peptide functionalised gold nanoparticle-based assay on thirty patient serum samples in a blinded assessment and compared our results with the previously run serological and pathological ...
https://opus.lib.uts.edu.au/handle/10453/130762
Size-dependent impacts of silver nanoparticles on the lifespan, fertility, growth, and locomotion of Caenorhabditis elegansSize-dependent impacts of silver nanoparticles on the lifespan, fertility, growth, and locomotion of Caenorhabditis elegans
The increased bioavailability of nanoparticles engineered for good dispersion in water may have biological and environmental impacts. To examine this issue, the authors assessed the biological effects in nematodes as they relate to exposure to silver nanoparticles (AgNPs) of different sizes at low (1 mg/L Ag), medium (10 mg/L Ag), and high concentrations (100 mg/L Ag). Over multiple generations, the authors found that the smallest particle, at 2 nm, had a notable impact on nematode fertility. In contrast, the largest particle, at 10 nm, significantly reduced the lifespan of parent nematodes (P0) by 28.8% and over the span of 3 generations (F1-F3). In addition, a computer vision system automatically measured the adverse effects in body length and motility, which were not size-dependent ...
https://scholarship.rice.edu/handle/1911/87883
Nanodelivery of cerebrolysin reduces functionalized Gold Nanoparticles induced Blood-brain barrier disruption, brain edema...Nanodelivery of cerebrolysin reduces functionalized Gold Nanoparticles induced Blood-brain barrier disruption, brain edema...
Recently, gold nanoparticles (AuNPs) are used for drug delivery in treating several neurological disorders e.g., Alzheimers disease (AD), Parkinsons disease, Stroke and trauma. In addition, use of AuNPs for diagnostic purposes in various diseases are also common in clinical medicine. However, the neurotoxic effects of AuNPs in vivo studies are not well explored. Thus, it would be interesting to examine AuNPs neurotoxicity in vivo models in relation to size related effects on brain pathology. We examined the effects of moderate doses of AuNPs of 3 different sizes (5 nm, 10 nm and 40 nm) administered either though intraperitoneally (10 mg/kg, i.p.), intravenously (5 mg/kg, i.v.), intracarotidly (2 mg/kg, i.c.a.) or intracerebroventricularly (20 µg in 20 µl, i.c.v.) in rats (Age 20 to 25 weeks). Blood-brain barrier (BBB) breakdown to Evans blue albumin (EBA 3 ml/kg, i.v.) and [131]-Iodine (100 µCi/kg, i.v.) was examined 24 h after AuNPs administration in the brain in relation to edema formation and
http://www.techconnect.org/proceedings/paper.html?volume=TCB2017v3&chapter=3&paper=600
Cerium Oxide Nanoparticle Market Report: Lucintel 2019Cerium Oxide Nanoparticle Market Report: Lucintel 2019
According to a new market report by Lucintel, the future of the |a href=https://www.lucintel.com/cerium-oxide-nanoparticle-market.aspx>cerium oxide nanoparticle|/a> market looks promising with opportunities in catalyst, biomedical, and energy applications. The cerium oxide nanoparticle market is expected to grow with a CAGR of 19% from 2019 to 2024. The major drivers for this market are increasing use of cerium oxide nanoparticles in various applications, rising focus of governments on nanotec
https://www.lucintel.com/press/cerium-oxide-nanoparticle-market-.aspx
Metal & Metal Oxide Nanoparticles Market: Gold Nanoparticles Continue to Shine in Terms of Value Owing to Significant Market...Metal & Metal Oxide Nanoparticles Market: Gold Nanoparticles Continue to Shine in Terms of Value Owing to Significant Market...
Global sales of metal & metal oxide nanoparticles was estimated to be pegged at over 4,000 tonnes in 2016.In terms of volume, the global metal & metal oxide nanoparticles ...
https://www.reportlinker.com/p04911723/Metal-Metal-Oxide-Nanoparticles-Market-Gold-Nanoparticles-Continue-to-Shine-in-Terms-of-Value-Owing-to-Significant-Market-Demand-Global-Industry-Analysis-and-Opportunity-Assessment.html
Protein-assisted 2D assembly of gold nanoparticles on a polysaccharide surface<...
TY - JOUR. T1 - Protein-assisted 2D assembly of gold nanoparticles on a polysaccharide surface. AU - Taajamaa, Laura. AU - Rojas, Orlando J.. AU - Laine, Janne. AU - Yliniemi, Kirsi. AU - Kontturi, Eero. PY - 2013/1/2. Y1 - 2013/1/2. KW - Nanoparticles; Specific Adsorption; Cationic and anionic surfaces. KW - Nanoparticles; Specific Adsorption; Cationic and anionic surfaces. KW - Nanoparticles. KW - Specific Adsorption. KW - Cationic and anionic surfaces. UR - http://pubs.rsc.org/en/Content/ArticleLanding/2013/CC/c2cc37288f. U2 - 10.1039/c2cc37288f. DO - 10.1039/c2cc37288f. M3 - Article. VL - 49. SP - 1318. EP - 1320. JO - Chemical Communications. JF - Chemical Communications. SN - 1359-7345. IS - 13. ER - ...
https://research.aalto.fi/en/publications/protein-assisted-2d-assembly-of-gold-nanoparticles-on-a-polysacch
Figure 1 | Silver Nanoparticle Synthesis Using Monosaccharides and Their Growth Inhibitory Activity against Gram-Negative and...Figure 1 | Silver Nanoparticle Synthesis Using Monosaccharides and Their Growth Inhibitory Activity against Gram-Negative and...
Figure 1: Silver Nanoparticle Synthesis Using Monosaccharides and Their Growth Inhibitory Activity against Gram-Negative and Positive Bacteria
https://www.hindawi.com/journals/isrn/2014/480284/fig1/
Connecting metallic nanoparticles | CIBIONConnecting metallic nanoparticles | CIBION
Using optical forces it is possible to print colloidal metallic nanoparticles on specific locations of a substrate, directly from the suspension. See for example the map of Argentina made of individual gold nanoparticles of 60 nm in diameter.. Making a careful use of optical forces, tuning focused laser beams on and off the plasmonic resonance of the metallic nanoparticles, it is possible to connect nanoparticles. Julián gargiulo, Ianina Violi, Santiago Cerrotta and Emiliano Cortés, under the direction of Prof. Fernando Stefani, managed to connect single gold nanoparticles to single silver nanoparticles, both of 60 nm in diameter.. This work constitutes an essential step toward the application of the vast variety of colloidal nanoparticles in circuits and devices.. J. Gargiulo, S. Cerrota, E. Cortés, I. L. Violi, F. D. ...
https://cibion.conicet.gov.ar/connecting-metallic-nanoparticles/?lan=en
Effect of taurine and gold nanoparticles on the morphological and molecular characteristics of muscle development during...Effect of taurine and gold nanoparticles on the morphological and molecular characteristics of muscle development during...
The objective of the present investigation was to evaluate the effects of taurine and Au nanoparticles on the expression of genes related to embryonic muscle development and on the morphological characteristics of muscles. Fertilised chicken eggs (n = 160) were randomly divided into four groups: without injection (Control) and with injection of Au nanoparticles (NanoAu), taurine (Tau) or Au nanoparticles with taurine (NanoAu + Tau). The experimental solutions were given in ovo, on the third day of incubation, by injecting 0.3 ml of the experimental solution into the air sack. The embryos were evaluated on the 20th day of incubation. The methods included gene expression at the mRNA and protein levels, immunohistochemistry, histology and microscopy. In groups NanoAu, Tau and NanoAu + Tau, the muscle structure and the number of muscle cells were affected. Furthermore, taurine increased fibre diameter, the total number of nuclei, the proportion of proliferating cell nuclear antigen (PCNA)-positive ...
https://saxo.ku.dk/ansatte/?pure=da%2Fpublications%2Feffect-of-taurine-and-gold-nanoparticles-on-the-morphological-and-molecular-characteristics-of-muscle-development-during-chicken-embryogenesis
NanoparticleNanoparticle
As for crystalline metal nanoparticles, dislocations were found to influence the mechanical properties of nanoparticles, ... Typical instances of this method are the production of metal oxide or hydroxide nanoparticles by hydrolysis of metal alkoxides ... nanoparticles enhance light absorption by increasing scattering. Recently, the metal core-dielectric shell nanoparticle has ... as metal carbides (SiC), nitrides (Aluminum nitrides, Silicon nitride), metals (Al, Cu), non-metals (graphite, carbon nanotubes ...
https://en.wikipedia.org/wiki/Nanoparticle
Bimetallic nanoparticleBimetallic nanoparticle
This metal will form the core. The pre-formed nanoparticle acts as the seed required for the nucleation of the second metal ... This takes place through a galvanic replacement reaction in which a metal nanoparticle comes in contact with a different metal ... This is achieved by first reducing the core metal followed by nucleation of the shell metal around it. The core metal also ... Once the complete reduction of the first metal is ensured, the second metal precursor is added. The second metal ion gets ...
https://en.wikipedia.org/wiki/Bimetallic_nanoparticle
Synthesis of nanoparticles by fungiSynthesis of nanoparticles by fungi
Sastry, M; Ahmad A; Khan MI; Kumar R (2003). "Biosynthesis of metal nanoparticles using fungi and actinomycete". Current ... Gericke, M; Pinches A (2006). "Biological synthesis of metal nanoparticles". Hydrometallurgy. 83 (1-4): 132-140. doi:10.1016/j. ... For external gold nanoparticle production, the solution color can vary depending on the size of the gold nanoparticles; smaller ... External gold nanoparticle synthesis by P. chrysosporium was attributed to laccase, while intracellular gold nanoparticle ...
https://en.wikipedia.org/wiki/Synthesis_of_nanoparticles_by_fungi
Silver nanoparticleSilver nanoparticle
Silver nanoparticles can be incorporated on many types of surfaces including metals, plastic, and glass. In medical equipment, ... The nanoparticles in these appliances are synthesized using electrolysis. Through electrolysis, silver is extracted from metal ... Silver nanoparticles are nanoparticles of silver of between 1 nm and 100 nm in size. While frequently described as being ' ... Bhattacharya R, Mukherjee P (August 2008). "Biological properties of "naked" metal nanoparticles". Advanced Drug Delivery ...
https://en.wikipedia.org/wiki/Silver_nanoparticle
Gold nanoparticles in chemotherapyGold nanoparticles in chemotherapy
Human breast carcinoma cells infused with metal nanoparticles in vitro have been shown to have an increase in morbidity with ... Huang, Yue-Wern; Wu, Chi-heng; Aronstam, Robert S. (2010-10-25). "Toxicity of Transition Metal Oxide Nanoparticles: Recent ... Sharma, Harshita; Mishra, Pawan K.; Talegaonkar, Sushama; Vaidya, Bhuvaneshwar (2015-09-01). "Metal nanoparticles: a ... Other gold nanoparticles on the market are mostly for synthesis of nanoparticle complexes in research. Nanocomposix specializes ...
https://en.wikipedia.org/wiki/Gold_nanoparticles_in_chemotherapy
Nanoparticles for drug delivery to the brainNanoparticles for drug delivery to the brain
Metal nanoparticles are promising as carriers for drug delivery to the brain. Common metals used for nanoparticle drug delivery ... Silver nanoparticles in particular have a higher degree of toxicity compared to other metal nanoparticles such as gold or iron ... Metal nanoparticles are associated with risks of neurotoxicity and cytotoxicity. These heavy metals generate reactive oxygen ... Metal nanoparticles are chemically synthesized using reduction reactions. For example, drug-conjugated silver nanoparticles are ...
https://en.wikipedia.org/wiki/Nanoparticles_for_drug_delivery_to_the_brain
Cobalt oxide nanoparticleCobalt oxide nanoparticle
Nanoparticles by composition, Cobalt compounds, Semiconductor materials, Transition metal oxides). ... One-pot hydrothermal synthesis of metal oxide hollow spheres starts with carbohydrates and metal salts dissolved in water at ... Cobalt oxide nanoparticles have been observed to readily enter cells, a property that conceivably could lead to applications in ... Cobalt oxide nanoparticles anchored on single-walled carbon nanotubes have been investigated for sensing nitrogen oxides NO x ...
https://en.wikipedia.org/wiki/Cobalt_oxide_nanoparticle
Antibiotic properties of nanoparticlesAntibiotic properties of nanoparticles
... production has been induced generally through the introduction of both metal oxide and positively charged metal nanoparticles ... this process initializes ROS production similar to the metal nanoparticles. Carbon nanostructures such as graphene oxide (GO) ... The key to nanoparticle efficacy against antibiotic resistant strains of bacteria lies in their small size. On the nano scale, ... Nanoparticles can enhance the effects of traditional antibiotics which a bacterium may have become resistant to, and decrease ...
https://en.wikipedia.org/wiki/Antibiotic_properties_of_nanoparticles
High-entropy-alloy nanoparticlesHigh-entropy-alloy nanoparticles
"Ultrafine Silver Nanoparticles for Seeded Lithium Deposition toward Stable Lithium Metal Anode". Advanced Materials. 29 (38): ... High-entropy-alloy nanoparticles (HEA-NPs) are nanoparticles having four or more elements alloyed in a single-phase solid ... "Nanoparticles and Systems and Methods for Synthesizing Nanoparticles Through Thermal Shock", published 2018-12-27, assigned to ... High-entropy alloys Thermal shock synthesis (CS1: long volume value, Alloys, Thermodynamic entropy, Nanoparticles by ...
https://en.wikipedia.org/wiki/High-entropy-alloy_nanoparticles
Titanium dioxide nanoparticleTitanium dioxide nanoparticle
TiO2 nanoparticle products are sometimes coated with silica or alumina, or doped with another metal for specific applications ... The toxicity of TiO2 nanoparticles on nematodes increases with smaller nanoparticle diameter specifically 7 nm nanoparticles ... "Metal-based nanoparticles in soil: Fate, behavior, and effects on soil invertebrates". Environmental Toxicology and Chemistry. ... along with silicon dioxide nanoparticles and zinc oxide nanoparticles. It is the second most advertised nanomaterial in ...
https://en.wikipedia.org/wiki/Titanium_dioxide_nanoparticle
Platinum nanoparticlePlatinum nanoparticle
The SPR of platinum nanoparticles is found in the ultraviolet range (215 nm), unlike the other noble metal nanoparticles which ... These concepts suggest the possible role of platinum nanoparticles in the development of solar energy conversion using metal ... By changing the size, shape and environment of metal nanoparticles, their optical properties can be used for electrontic, ... Platinum nanoparticles are usually in the form of a suspension or colloid of nanoparticles of platinum in a fluid, usually ...
https://en.wikipedia.org/wiki/Platinum_nanoparticle
Dendrimer-encapsulated nanoparticlesDendrimer-encapsulated nanoparticles
The charge-transfer complex that forms between the metal ions and the dendrimer exhibits a ligand-to-metal charge transfer, or ... Dendrimer-encapsulated nanoparticles (DENs) are nanoparticles ranging from 1.5 to 10 nm that are synthesized by a template ... where Mp+ refers to the metal ions used and n refers to the average number of metal ions complexed within each dendrimer. After ... where M is the zerovalent metal used and n is the number of metal atoms. DENs can be characterized mainly by ultraviolet- ...
https://en.wikipedia.org/wiki/Dendrimer-encapsulated_nanoparticles
Ceramic nanoparticleCeramic nanoparticle
The unhardened material is then dissolved to produce a "shell". The shell is then coated with ceramic, metals, metallic glass, ... Ceramic nanoparticle is a type of nanoparticle that is composed of ceramics, which are generally classified as inorganic, heat- ... They were formed using a process called sol-gel which mixes nanoparticles within a solution and gel to form the nanoparticle. ... Ceramic nanoparticle have unique properties because of their size and molecular structure. These properties are often shown in ...
https://en.wikipedia.org/wiki/Ceramic_nanoparticle
Upconverting nanoparticlesUpconverting nanoparticles
In a transition-metal lattice doped with rare-earth metals, an excited-state charge transfer exists between two excited ions. ... From this, the number of unit cells in a nanoparticle, and thus the total mass of the nanoparticle, can be estimated. As the ... To calculate the molecular mass of a nanoparticle, the size of the nanoparticle, the size and shape of the unit cell structure ... The use of upconverting nanoparticles in fingerprinting is highly selective. The upconverting nanoparticles can bind to ...
https://en.wikipedia.org/wiki/Upconverting_nanoparticles
Nanoparticle depositionNanoparticle deposition
Nanoparticles can be made from different materials such as metals, ceramics and polymers. The stability of the nanoparticles ... Examples include Using graphene oxide for applications in electronics Using nanoparticles of metal oxides, carbon nanotubes and ... Nanoparticle deposition refers to the process of attaching nanoparticles to solid surfaces called substrates to create coatings ... Bare nanoparticles tend to stabilize themselves either by sorption of molecules from the surroundings or by lowering the ...
https://en.wikipedia.org/wiki/Nanoparticle_deposition
Magnetic nanoparticlesMagnetic nanoparticles
The metallic core of magnetic nanoparticles may be passivated by gentle oxidation, surfactants, polymers and precious metals. ... Ferrite nanoparticles or iron oxide nanoparticles (iron oxides in crystal structure of maghemite or magnetite) are the most ... Magnetic nanoparticles are a class of nanoparticle that can be manipulated using magnetic fields. Such particles commonly ... Magnetic nanoparticle clusters that are composed of a number of individual magnetic nanoparticles are known as magnetic ...
https://en.wikipedia.org/wiki/Magnetic_nanoparticles
Iron-platinum nanoparticleIron-platinum nanoparticle
Currently there are many synthetic methods such as water-in-oil microemulsion, one-step thermal synthesis with metal precursors ... The size increase of the bimetallic nanoparticles enables a wider range of biological applications. Platinum nanoparticles ... Iron-platinum nanoparticles (FePt NPs) are 3D superlattices composed of an approximately equal atomic ratio of Fe and Pt. Under ... Nanoparticles have also been grown with coercivities up to 37 kOe. Due to their superparamagnetism and controllable shape, size ...
https://en.wikipedia.org/wiki/Iron–platinum_nanoparticle
Tetraethyl orthosilicateTetraethyl orthosilicate
"Functionalization of Silica Nanoparticles for Corrosion Prevention of Underlying Metal". In Kong, Eric S. W. (ed.). ... Kicklebick, Guido (2015). "Nanoparticles and Composites". In Levy, David; Zayat, Marcos (eds.). The Sol-Gel Handbook: Synthesis ...
https://en.wikipedia.org/wiki/Tetraethyl_orthosilicate
Copper nanoparticleCopper nanoparticle
... the metal ions migrated to the outer part of the glaze and were reduced to metals. The end result was a double layer of metal ... A copper nanoparticle is a copper based particle 1 to 100 nm in size. Like many other forms of nanoparticles, a copper ... Moreover, using nanoparticles, native amino acids can be detected. A copper nanoparticle-plated screen-printed carbon electrode ... In fact, the nanoparticles enable the sensor to be more stable at high temperatures and varying pH, and more resistant to toxic ...
https://en.wikipedia.org/wiki/Copper_nanoparticle
Characterization of nanoparticlesCharacterization of nanoparticles
Semiconductor quantum dots are fluorescent and metal nanoparticles exhibit surface plasmon absorbances, making both amenable to ... Nanoparticles may also be mixed with larger particles. For some applications, nanoparticles may be characterized in complex ... Many nanoparticles do not yet have reference materials available. Nanoparticles have the challenge that reference materials can ... A high background of natural and incidental nanoparticles may interfere with detection of the target engineered nanoparticle, ...
https://en.wikipedia.org/wiki/Characterization_of_nanoparticles
Exploding wire methodExploding wire method
Metal oxide and pure metal nanoparticles are used in Catalysis, sensors, oxygen antioxident, self repairing metal, ceramics, UV ... When EWM is performed in a standard atmosphere containing oxygen, metal oxides are formed. Pure metal nanoparticles can also be ... and in the production of metal nanoparticles. One of the first documented cases of using electricity to melt a metal occurred ... Nanoparticles are created by EWM when the ambient gas of the system cools the recently produced vaporous metal. EWM can be used ...
https://en.wikipedia.org/wiki/Exploding_wire_method
Nanoparticle-biomolecule conjugateNanoparticle-biomolecule conjugate
Metals contain inherent magnetic properties that allow for manipulation of molecular assembly. As nanoparticles interact with ... A nanoparticle-biomolecule conjugate is a nanoparticle with biomolecules attached to its surface. Nanoparticles are minuscule ... Interactions between nanoparticles and molecules change depending on the nanoparticle's core. Nanoparticle properties depend ... In contrast with nanomolecules, the chemical components of nanoparticles usually consist of metals, such as iron, gold, silver ...
https://en.wikipedia.org/wiki/Nanoparticle–biomolecule_conjugate
Aluminium oxide nanoparticleAluminium oxide nanoparticle
The oxidation of the surface of some liquid metal alloys leads to the formation of loose or porous 3D nanostructures. For the ... 6. "E. V. Petrova, A. F. Dresvyannikov, M. A. Tsyganov, Gubaidullina A. M., Vlasov V. V., Islamov G. G. nanoparticles of ... Nanosized aluminium oxide (nanosized alumina) occurs in the form of spherical or nearly spherical nanoparticles, and in the ... The liquid metal technology of synthesis of nanostructural aerogel AlOOH from molten Ga-Bi and Al-Al (Institute of RF IPPE ...
https://en.wikipedia.org/wiki/Aluminium_oxide_nanoparticle
Nanoparticle drug deliveryNanoparticle drug delivery
Metal nanoparticles, such as gold nanoparticles, have optical qualities(also described in nanomaterials) that allow for less ... polymeric nanoparticles, inorganic nanoparticles, viral nanoparticles, lipid-based nanoparticles, and nanoparticle albumin- ... Polymeric nanoparticles are synthetic polymers with a size ranging from 10 to 100 nm. Common synthetic polymeric nanoparticles ... Nanoparticle drug delivery systems are engineered technologies that use nanoparticles for the targeted delivery and controlled ...
https://en.wikipedia.org/wiki/Nanoparticle_drug_delivery
Quantum spin liquidQuantum spin liquid
Shaginyan, V. R.; Amusia, M. Ya.; Msezane, A. Z.; Popov, K. G. (2010). "Scaling Behavior of Heavy Fermion Metals". Physics ... In 2020 monodisperse single-crystal nanoparticles of herbertsmithite (~10 nm) were synthesized at room temperature, using gas- ... This scaling is seen in certain quantum antiferromagnets, heavy-fermion metals, and two-dimensional 3He as a signature of ... 2006). "High-field phase diagram of the heavy-fermion metal YbRh2Si2". New Journal of Physics. 8 (9): 171. Bibcode:2006NJPh.... ...
https://en.wikipedia.org/wiki/Quantum_spin_liquid
Nicola PinnaNicola Pinna
In particular, his research interests include the synthesis of crystalline metal oxide nanoparticles, heterostructures, hybrid ... Niederberger, Markus; Pinna, Nicola (2009). Metal Oxide Nanoparticles in Organic Solvents. Springer. ISBN 978-1-84882-671-7. ... He is executive editor of the Journal of Nanoparticle Research, associate editor of Carbon Energy and was member of the ... "Journal of Nanoparticle Research - Editorial Board". Retrieved 2015-02-21. "Carbon Energy - Editorial Board". Retrieved 2021-04 ...
https://en.wikipedia.org/wiki/Nicola_Pinna
Rodney S. RuoffRodney S. Ruoff
... of carbon-encapsulated metal nanoparticles;(iv) of patterned graphite and thus micromechanically exfoliated graphene-like ... "Single Crystal Metals Encapsulated in Carbon Nanoparticles". Science. 259 (5093): 346-8. Bibcode:1993Sci...259..346R. doi: ... "Magnetic separation of GdC2 encapsulated in carbon nanoparticles". Carbon. 32 (3): 507. doi:10.1016/0008-6223(94)90173-2. Lu, X ... and of synthesis and structural characterization of supergiant fullerenes containing single crystal metal 'encapsulates', have ...
https://en.wikipedia.org/wiki/Rodney_S._Ruoff
Teri W. OdomTeri W. Odom
"2010 Noble Metal Nanoparticles Conference GRC". www.grc.org. Retrieved September 17, 2018. "TR100". MIT Technology Review. ... Odom was a founding Chair of the Noble Metal Nanoparticles Gordon Research Conference which began in 2010. Research in Odom ... Odom also conducts research into nanoparticle-cell interactions using new biological nanoconstructs that offer imaging and ...
https://en.wikipedia.org/wiki/Teri_W._Odom
Humic substanceHumic substance
coated magnetic nanoparticles with humic acids. After capturing lead ions, the nanoparticles can then be captured using a ... The heavy-metal binding abilities of humic acids have been exploited to develop remediation technologies for removing heavy ... complexes is an important aspect of the biological role of humic acids in regulating bioavailability of metal ions. The ... metals from waste water. To this end, Yurishcheva et al. ...
https://en.wikipedia.org/wiki/Humic_substance
Environmental impact of silver nanoparticlesEnvironmental impact of silver nanoparticles
Silver outcompetes other metals for the available sulfide, leading to an overall decrease in bioavailable sulfur in the ... and most of the silver nanoparticles in wastewater remain in the original silver nanoparticle form. The presence of natural ... with approximately 3.9 tonnes of silver nanoparticles entering the environment annually. Silver nanoparticles are not entirely ... Most silver nanoparticles in products have an organic shell structure around a core of Ag0. This shell is often created with ...
https://en.wikipedia.org/wiki/Environmental_impact_of_silver_nanoparticles
Mie scatteringMie scattering
For metal particles, the peak visible in the scattering cross-section is also called localized plasmon resonance. In the limit ... This set of equations was first described by van de Hulst in (1957). The scattering by a spherical nanoparticle is solved ... They usually consist of three-dimensional composites of metal or non-metallic inclusions periodically or randomly embedded in a ... "Directional visible light scattering by silicon nanoparticles". Nat Commun 4, 1527 (2013) doi:10.1038/ncomms2538 Shamkhi, Hadi ...
https://en.wikipedia.org/wiki/Mie_scattering
MagnetochromismMagnetochromism
Magnetically-induced color change can also occur in aqueous solutions of colloidal Fe3O4 nanoparticles that are ~10 nm in ... In particular the magneto-optical effects exhibited by complex mixed metal compounds are called magnetochromic when they occur ...
https://en.wikipedia.org/wiki/Magnetochromism
Nano-thermiteNano-thermite
... a metal and a metal oxide, under 100 nanometers. This allows for high and customizable reaction rates. Nano-thermites contain ... nanoparticles). This dramatically increases the reactivity relative to micrometre-sized powder thermite. As the mass transport ... are usually metal oxides and elemental metals. At the temperatures prevailing during the reaction, the products can be solid, ... Fischer, S.H.; Grubelich, M.C. (July 1-3, 1996). "A Survey of Combustible Metals, Thermites, and Intermetallics for Pyrotechnic ...
https://en.wikipedia.org/wiki/Nano-thermite
Health and safety hazards of 3D printingHealth and safety hazards of 3D printing
Carbon nanoparticle emissions and processes using powder metals are highly combustible and raise the risk of dust explosions. ... At least one case of severe injury was noted from an explosion involved in metal powders used for fused filament printing. ... The devices were made from layers of metal, and shavings had come loose - potentially harming the patient. Hazard controls ... "After explosion, US Department of Labor's OSHA cites 3-D printing firm for exposing workers to combustible metal powder, ...
https://en.wikipedia.org/wiki/Health_and_safety_hazards_of_3D_printing
Yayuan LiuYayuan Liu
"Bifunctional non-noble metal oxide nanoparticle electrocatalysts through lithium-induced conversion for overall water splitting ... As an undergraduate student she worked with Fengwei Huo on metal-organic frameworks. During her undergraduate studies she spent ... "Reviving the lithium metal anode for high-energy batteries". Nature Nanotechnology. 12 (3): 194-206. Bibcode:2017NatNa..12.. ... "Layered reduced graphene oxide with nanoscale interlayer gaps as a stable host for lithium metal anodes". Nature Nanotechnology ...
https://en.wikipedia.org/wiki/Yayuan_Liu
Nanofluids in solar collectorsNanofluids in solar collectors
Among these, the use of nanoparticles suspended in a liquid is the subject of research. Nanoparticle materials including ... especially metals. So, addition of solid particles in a fluid can increase the conductivity of liquids. But we cannot add large ... Properties of fluid can be changed by varying concentration of nanoparticles. Extremely small size of nanoparticles ideally ... material and volume fraction of the nanoparticles. The suspended nanoparticles increase the surface area but decrease the heat ...
https://en.wikipedia.org/wiki/Nanofluids_in_solar_collectors
GravimetryGravimetry
Quartz and metal springs are chosen for different reasons; quartz springs are less affected by magnetic and electric fields ... Rademacher, Markus; Millen, James; Li, Ying Lia (2020-10-01). "Quantum sensing with nanoparticles for gravimetry: when bigger ... The majority of modern gravimeters use specially-designed metal or quartz zero-length springs to support the test mass. Zero- ... while metal springs have a much lower drift (elongation) with time. The test mass is sealed in an air-tight container so that ...
https://en.wikipedia.org/wiki/Gravimetry
Nanomaterial-based catalystNanomaterial-based catalyst
Functionalized metal nanoparticles are more stable toward solvents compared to non-functionalized metal nanoparticles. In ... Metal nanoparticles have high surface area, which can increase catalytic activity. Nanoparticle catalysts can be easily ... called bimetallic nanoparticles, are used to create synergistic effects on catalysis between the two metals. Nanoparticle ... The reaction may also be catalyzed by a nanoparticle that consists of two metals. An oxidation reaction to form adipic acid is ...
https://en.wikipedia.org/wiki/Nanomaterial-based_catalyst
Uwe B. SleytrUwe B. Sleytr
... and nanoparticles as patterning elements and basic building blocks for the production of sometimes very complex supramolecular ... metals, semiconductors, graphene, polymers) and lipid membranes including liposomes and emulsomes in the form of regular ...
https://en.wikipedia.org/wiki/Uwe_B._Sleytr
ApNanoApNano
Professor Reshef Tenne discovered Inorganic Fullerene-like nanoparticles (IF-MXy where M- is transition metal and X - is ... IF-WS2 nanoparticles with a hollow sphere (Fullerene-like) morphology, provide extreme lubricity, anti-friction, and high ... NIS is specializing in commercial manufacturing of nanoparticles of Inorganic Fullerene-like Tungsten Disulfide (IF-WS2). The ...
https://en.wikipedia.org/wiki/ApNano
Biometal (biology)Biometal (biology)
Metal compounds and ions can also produce harmful effects on the body due to the toxicity of several types of metals. For ... In prokaryotes, zinc can function as an antimicrobial, zinc oxide nano-particles can function as an antibacterial or antibiotic ... The metals copper, zinc, iron, and manganese are examples of metals that are essential for the normal functioning of most ... Metal ions and metallic compounds are often used in medical treatments and diagnoses. Compounds containing metal ions can be ...
https://en.wikipedia.org/wiki/Biometal_(biology)
High-entropy alloyHigh-entropy alloy
Amorphous metal High-entropy-alloy nanoparticles Nanocrystalline material Hume-Rothery rules Wang, Shaoqing (13 December 2013 ... The activation energy for diffusion was found to be higher for several elements in CoCrFeMnNi than in pure metals and stainless ... Prior to the synthesis of these substances, typical metal alloys comprised one or two major components with smaller amounts of ... Understanding the behavior of these "five-metal particles" was of specific interest to the medical industry because Tc-99m is ...
https://en.wikipedia.org/wiki/High-entropy_alloy
NanolithographyNanolithography
The soft lithography isn't suitable for production of semiconductor-based devices as it's not complementary for metal ... The second component is ferromagnetic nanoparticles (analog to the Photoresist) that are assembled onto the substrate according ... is based on applying a magnetic field on the substrate using paramagnetic metal masks call "magnetic mask". Magnetic mask which ...
https://en.wikipedia.org/wiki/Nanolithography
AntimicrobialAntimicrobial
Other heavy metal cations such as Hg2+ and Pb2+ have antimicrobial activities, but can be toxic. In recent years, the ... Copper, in the form of nanoparticle, is increasingly attracting interest for the intrinsic antimicrobial behaviors. ... Other antifungal surface treatments typically contain variants of metals known to suppress mold growth e.g. pigments or ...
https://en.wikipedia.org/wiki/Antimicrobial
Stephanie BrockStephanie Brock
"NSF Award Search: Award#1904775 - Transition Metal Pnictide Nanoparticles for Energy-Relevant Applications". www.nsf.gov. ... Her research considers metal pnictides and chalcogenide nanomaterials. She is a Fellow of the American Association for the ... The gel-like cadmium selenide (CdSe) and zinc sulfide (ZnS) nanoparticles are akin to a cross-linked polymer network, and can ... The aerogels have high surface areas and form a conductive network with the optical properties of the nanoparticles themselves ...
https://en.wikipedia.org/wiki/Stephanie_Brock
Zinc oxide nanorod sensorZinc oxide nanorod sensor
"Quasi-one-dimensional metal oxide materials-Synthesis, properties and applications" (42 pages) Mater. Sci. Eng. R 52 (2006) 49 ... flexible and transparent ethanol gas sensor based on ZnO nanoparticles for wearable devices". Scientific Reports. 5: 11070. ...
https://en.wikipedia.org/wiki/Zinc_oxide_nanorod_sensor
Phosphine telluridePhosphine telluride
... s are reagents used in the preparation of metal telluride nanoparticles. Jeremias, Lukáš; Babiak, Michal; ...
https://en.wikipedia.org/wiki/Phosphine_telluride
Ultra-high-temperature ceramicsUltra-high-temperature ceramics
The metal component oxidizes to a gas such as CO2 or NO2, which is rapidly lost at the elevated temperatures UHTCs are most ... 2008). "Mechanically activated solid-state synthesis of hafnium carbide and hafnium nitride nanoparticles". Journal of Alloys ... Metal carbides are brittle due to the strong bonds that exist between carbon atoms. The largest class of carbides, including Hf ... These techniques rely on metal halide and boron halide precursors (such as TiCl4 and BCl3) in the gaseous phase and use H2 as a ...
https://en.wikipedia.org/wiki/Ultra-high-temperature_ceramics
Sonogashira couplingSonogashira coupling
Here, FeCl3 is proposed to act as the transition-metal catalyst and Cs2CO3 as the base, thus theoretically proceeding through a ... In this case, catalysis occurs heterogeneously on the Au nanoparticles, with Au(0) as the active site. Selectivity to the ... While the copper-free mechanism has been shown to be viable, attempts to incorporate the various transition metals mentioned ... N-heterocyclic carbenes (NHCs) have become one of the most important ligands in transition-metal catalysis. The success of ...
https://en.wikipedia.org/wiki/Sonogashira_coupling
Actinide chemistryActinide chemistry
... metal, and metal - superconductor types of conductivity phase transitions; solid electrolyte molecular engines; and ... It is shown that thermodynamically stable nanoparticles of LnxMy composition can be formed by d elements of the second halves ... Pu4+ (aq) + 4 NO− 3(aq) + 2 S(organic) → [Pu(NO 3) 4S 2](organic) A complex bond is formed between the metal cation, the ... In contrast to the relatively early flowering of organotransition-metal chemistry (1955 to the present), the corresponding ...
https://en.wikipedia.org/wiki/Actinide_chemistry
Yuriy ReznikovYuriy Reznikov
"Light manipulation of nanoparticles in arrays of topological defects." Scientific reports 6, no. 1 (2016): 1-7. doi: 10.1038/ ... discovering strong thermal optical nonlinearity in liquid crystalline metal nano-colloids, developing stable liquid crystal ... "Ferromagnetic and ferroelectric nanoparticles in liquid crystals." Liquid crystals with nano and microparticles. 2017. 657-693 ... Since 1995, Yuriy's main milestones include light manipulation of nanoparticles in arrays of topological defects, developing a ...
https://en.wikipedia.org/wiki/Yuriy_Reznikov
Nestor J. ZaluzecNestor J. Zaluzec
His work over the last 40 years at Argonne has included studies in the areas of structural phase transformation in metals, ... "Innovative Instrumentation for Analysis of Nanoparticles: The π Steradian Detector". Microsc. Today. 17 (4): 56-59. doi:10.1017 ... elemental segregation in a wide range of materials ranging from metals and catalysts to semiconductors and superconductors, ...
https://en.wikipedia.org/wiki/Nestor_J._Zaluzec
E. K. T. SivakumarE. K. T. Sivakumar
"Application of Iron Nanoparticles in Waste Water Treatment" (2011)- NanoMeet 2011 - A Technical Symposium on Materials of ... Communicated in Synthetic Metals. E. K. T. Sivakumar, Sathiyan G, Thangamuthu R and Sakthivel P - 18 December 2015. "Review of ... "Application of Iron Nanoparticles in Waste Water Treatment" (2011)- NanoMeet 2011 - A Technical Symposium on Materials of ... A Study of Electrical and Magnetic Properties of Ferrite Nano particles for Electrical Applications " International Journal of ...
https://en.wikipedia.org/wiki/E._K._T._Sivakumar
Oleg PrezhdoOleg Prezhdo
While investigating plasmonic properties of metal nanoparticles, Prezhdo predicted instantaneous photo-induced charge ... Subsequently, the work expanded into studies of other 2-dimensional materials such as transition metal dichalcogenides. During ... "Instantaneous generation of charge-separated state on TiO2 surface sensitized with plasmonic nanoparticles", J. Am. Chem. Soc ... "Theoretical insights into photoinduced charge transfer and catalysis at metal oxide surfaces", Chem. Rev., 113, 4496 (2013). V ...
https://en.wikipedia.org/wiki/Oleg_Prezhdo
Vibrational analysis with scanning probe microscopyVibrational analysis with scanning probe microscopy
This technique requires a metal tip to enhance the signal of the sample. That is why an AFM metal tip is usually used for ... This is also reinforced by the fact that the distance between nanoparticles and sample is an important factor in obtaining high ... If it is parallel (p-polarized) to the tip axis, the free electrons on the surface of the metal are confined to the end of the ... A typical approach in a TERS experiment is to focus the laser beam on a metal tip with the light polarized along the tip axis, ...
https://en.wikipedia.org/wiki/Vibrational_analysis_with_scanning_probe_microscopy
Plasmonic metamaterialPlasmonic metamaterial
The nanoparticles are deposited on a glass substrate and overlain by even smaller gold nanoparticles that act as a plasmonic ... Plasmonic materials are metals or metal-like materials that exhibit negative real permittivity. Most common plasmonic materials ... Gold group metals (Au, Ag and Cu) have been used as direct active materials in photovoltaics and solar cells. The materials act ... Hyperbolic metamaterials behave as a metal when light passes through it in one direction and like a dielectric when light ...
https://en.wikipedia.org/wiki/Plasmonic_metamaterial
Smart inorganic polymerSmart inorganic polymer
While metals are not typically associated with polymeric structures, the inclusion of metal atoms either throughout the ... Similar hybrid textile coatings made of amino-functionalized polysiloxane with TiO2 and silver nanoparticles have been reported ... molecular electronics with non-metal elements to replace metal-based conductors, electrochromic materials, self-healing ... It typically exists in its deprotonated form, and can form salts with physiological metal cations like Ca2+, Sr2+, and Mg2+. ...
https://en.wikipedia.org/wiki/Smart_inorganic_polymer
Prussian bluePrussian blue
It is possible to replace the Fe metal centers in PB with different metal ions such as Mn, Co, Ni, Zn, etc. to form ... Nanoparticles of Prussian blue are used as pigments in some cosmetics ingredients, according to the European Union Observatory ... In medicine, orally administered Prussian blue is used as an antidote for certain kinds of heavy metal poisoning, e.g., by ... The therapy exploits the compound's ion-exchange properties and high affinity for certain "soft" metal cations. It is on the ...
https://en.wikipedia.org/wiki/Prussian_blue
Quantum capacitanceQuantum capacitance
In a traditional metal-insulator-metal capacitor, the galvani potential is the only relevant contribution. Therefore, the ... In modeling and analyzing dye-sensitized solar cells, the quantum capacitance of the sintered TiO2 nanoparticle electrode is an ... For example, in the three-plate configuration metal-insulator-2DEG-insulator-metal, the quantum capacitance effect means that ... Take a capacitor where one side is a metal with essentially-infinite density of states. The other side is the low density-of- ...
https://en.wikipedia.org/wiki/Quantum_capacitance
CDC - Mining - Characterizing Exposures to Airborne Metals and Nanoparticle!! - NIOSHCDC - Mining - Characterizing Exposures to Airborne Metals and Nanoparticle!! - NIOSH
Mining Publication: Characterizing Exposures to Airborne Metals and Nanoparticle Emissions in a Refinery. Keywords: Aerosols ... An air quality survey was conducted at a precious metals refinery in order to evaluate worker exposures to airborne metals and ... TEM/EDS analyses confirmed the high number of nanoparticles measured by the FMPS and indicated the aerosols were rich in metals ... Results of the survey were used to deduce appropriate strategies for mitigation of worker exposure to airborne metals. ...
http://www.cdc.gov/niosh/mining/works/coversheet99.html
Metal nanoparticles shine with customizable colorMetal nanoparticles shine with customizable color
... (Nanowerk News) Engineers at Harvard have demonstrated a new kind of tunable ... and colleagues have engineered the size and shape of metal nanoparticles so that the color they appear strongly depends on the ... The nanoparticles can be regarded as antennas-similar to antennas used for wireless communications-but much smaller in scale ... Virtual pillars separate and sort blood-based nanoparticles. Dec 03, 2022. Graphene palm e-tattoo can tell when youre ...
https://www.nanowerk.com/news/newsid=24387.php
Metal Nanoparticles - Market Study by Global Industry Analysts, Inc.Metal Nanoparticles - Market Study by Global Industry Analysts, Inc.
Metal Nanoparticles Market Study by Global Industry Analysts, Inc. ... USA Historic Review for Metal Nanoparticles by Metal - Silver, Gold, Platinum / Palladium, Nickel, Copper and Other Metals ... Canada Historic Review for Metal Nanoparticles by Metal - Silver, Gold, Platinum / Palladium, Nickel, Copper and Other Metals ... Japan Historic Review for Metal Nanoparticles by Metal - Silver, Gold, Platinum / Palladium, Nickel, Copper and Other Metals ...
https://www.strategyr.com/market-report-metal-nanoparticles-forecasts-global-industry-analysts-inc.asp
Nanoparticles - Metal & Metal Oxides Market In Healthcare Report, 2025Nanoparticles - Metal & Metal Oxides Market In Healthcare Report, 2025
... metal & metal oxides market in healthcare was estimated at USD 25.86 billion in 2016. Presence of a substantial number of metal ... nanoparticle based medicines that are currently approved by the U.S. ... Nanoparticles - Metal & Metal Oxides Market In Healthcare Report, 2025 GVR Report cover Nanoparticles - Metal & Metal Oxides ... What is the nanoparticles metal and metal oxides market growth? b. The global nanoparticles metal and metal oxides market is ...
https://www.grandviewresearch.com/industry-analysis/nanoparticles-metal-oxides-in-healthcare-market
Metal Nanoparticles | Harvard Catalyst Profiles | Harvard CatalystMetal Nanoparticles | Harvard Catalyst Profiles | Harvard Catalyst
"Metal Nanoparticles" by people in Harvard Catalyst Profiles by year, and whether "Metal Nanoparticles" was a major or minor ... "Metal Nanoparticles" is a descriptor in the National Library of Medicines controlled vocabulary thesaurus, MeSH (Medical ... Nanoparticles produced from metals whose uses include biosensors, optics, and catalysts. In biomedical applications the ... Below are the most recent publications written about "Metal Nanoparticles" by people in Profiles. ...
https://connects.catalyst.harvard.edu/Profiles/display/Concept/Metal%20Nanoparticles
ISO - ISO/PRF TS 5094 - Nanotechnologies - Assessment of peroxidase-like activity of metal and metal oxide nanoparticlesISO - ISO/PRF TS 5094 - Nanotechnologies - Assessment of peroxidase-like activity of metal and metal oxide nanoparticles
Assessment of peroxidase-like activity of metal and metal oxide nanoparticles ... Nanotechnologies - Assessment of peroxidase-like activity of metal and metal oxide nanoparticles. ...
https://www.iso.org/standard/80771.html
Bifunctional non-noble metal oxide nanoparticle electrocatalysts through lithium-induced conversion for overall water splitting...Bifunctional non-noble metal oxide nanoparticle electrocatalysts through lithium-induced conversion for overall water splitting...
... nanoparticles (∼20 nm) are electrochemically transformed into ultra-small diameter (2-5 nm) nanoparticles through lithium- ... Here we demonstrate the improvement of catalytic activity when transition metal oxide (iron, cobalt, nickel oxides and their ... We demonstrate that lithium-induced ultra-small NiFeOx nanoparticles are active bifunctional catalysts exhibiting high activity ... this method maintains excellent electrical interconnection among nanoparticles and results in large surface areas and many ...
https://www.nature.com/articles/ncomms8261?error=cookies_not_supported&code=7f88f8c3-a67a-44e7-8b44-623c126748c1
APS -2009 APS March Meeting - Event - Universal Behavior of Core-Shell Preferences in Transition-Metal NanoparticlesAPS -2009 APS March Meeting - Event - Universal Behavior of Core-Shell Preferences in Transition-Metal Nanoparticles
Abstract: Q38.00006 : Universal Behavior of Core-Shell Preferences in Transition-Metal Nanoparticles*. 1:27 PM-1:39 PM ... Transition-metal, core-shell nanoparticles are becoming ubiquitous from (electro-) catalysis to biomedical applications, due to ... We investigate 66 binary core-shell nanoparticle systems (groups 8 to 11 in the periodic table) using density functional theory ... Funding is through the Department of Energy Catalysis (DEFG02-03ER15476), Energy (DEFC36-05GO15064) with Sandia Metal-Hydride ...
https://meetings.aps.org/Meeting/MAR09/Session/Q38.6
Hollow capsules of doped carbon incorporating metal@metal sulfide and metal@metal oxide core-shell nanoparticles derived from...Hollow capsules of doped carbon incorporating metal@metal sulfide and metal@metal oxide core-shell nanoparticles derived from...
However, going beyond state-of-the-art catalysts that are based on expensive noble metals remains a major challenge. Recently, ... The supported metal@metal sulfide and metal@metal oxide core-shell nanoparticles proved to be excellent catalysts for the ... Hollow capsules of doped carbon incorporating metal@metal sulfide and metal@metal oxide core-shell nanoparticles derived from ... Hollow capsules of doped carbon incorporating metal@metal sulfide and metal@metal oxide core-shell nanoparticles derived from ...
https://pubs.rsc.org/en/Content/ArticleLanding/2019/TA/C8TA11213D
Noble metal nanoparticles for assay development - DORASNoble metal nanoparticles for assay development - DORAS
Nobel metal nanoparticles are found to enhance fluorescence-based biosensing due to a phenomenon known as metal-enhanced ... Noble metal nanoparticles exhibit a unique optical property known as localized surface plasmon resonance (LSPR), which occurs ... Noble metal nanoparticles; Localized Surface Plasmon Resonance (LSPR); Biosensors. Subjects:. Physical Sciences , Physics. ... Zhang, Yi (2013) Noble metal nanoparticles for assay development. PhD thesis, Dublin City University. ...
https://doras.dcu.ie/19380/
Surface plasmon resonances in liquid metal nanoparticles - РусскийSurface plasmon resonances in liquid metal nanoparticles - Русский
Surface plasmon resonances in liquid metal nanoparticles. Ershov, A. E.; Gerasimov, V. S.; Gavrilyuk, A. P.; Karpov, S. V. ... Surface plasmon resonances in liquid metal nanoparticles Ershov, A. E.; Gerasimov, V. S.; Gavrilyuk, A. P.; Karpov, S. V. ... Using experimental values of the optical constants of liquid and solid metals, we have calculated nanoparticle plasmonic ... Experimental verification was performed for single Au nanoparticles heated to the melting temperature and above up to full ...
http://kirensky.ru/ru/publikacii/2017/surface-plasmon-resonances-in-liquid-metal-nanoparticles
Assessing The Photocatalytic Effects Of Metal-Oxide Nanoparticles On Marine Organisms Under Environmentally-Relevant Light...Assessing The Photocatalytic Effects Of Metal-Oxide Nanoparticles On Marine Organisms Under Environmentally-Relevant Light...
Assessing The Photocatalytic Effects Of Metal-Oxide Nanoparticles On Marine Organisms Under Environmentally-Relevant Light ... Assessing The Photocatalytic Effects Of Metal-Oxide Nanoparticles On Marine Organisms Under Environmentally-Relevant Light ... Based on our extensive experience with a marine biology, metal chemistry and ocean optics, we have developed several lines of ... p,Titanium dioxide (TiO2) nanoparticles (NPs) are one of the most widely used manufactured nanomaterials in industrial and ...
https://www.nal.usda.gov/research-tools/food-safety-research-projects/assessing-photocatalytic-effects-metal-oxide
Black Metal Nanoparticles from Abrasion Processes in Our Everyday Lives: Bicycle Chains, Rock Climbing Ropes, and Motor Oil -...Black Metal Nanoparticles from Abrasion Processes in Our Everyday Lives: Bicycle Chains, Rock Climbing Ropes, and Motor Oil -...
Black Metal Nanoparticles from Abrasion Processes in Our Everyday Lives: Bicycle Chains, Rock Climbing Ropes, and Motor Oil. ... Black Metal Nanoparticles from Abrasion Processes in Our Everyday Lives: Bicycle Chains, Rock Climbing Ropes, and Motor Oil ... Moosmüller, H., Giri, R., Berg, M., Black Metal Nanoparticles from Abrasion Processes in Our Everyday Lives: Bicycle Chains, ...
https://www.dri.edu/publication/11387/
PhD Positions | Nano-scale characterization of catalytic metal nanoparticle -semiconductor interfaces using in situ Atomic...PhD Positions | Nano-scale characterization of catalytic metal nanoparticle -semiconductor interfaces using in situ Atomic...
UTFacultiesTNWClustersResearch groupsPCFVacanciesPhD PositionsNano-scale characterization of catalytic metal nanoparticle - ... UTFacultiesTNWClustersResearch groupsPCFVacanciesPhD PositionsNano-scale characterization of catalytic metal nanoparticle - ... Nano-scale characterization of catalytic metal nanoparticle -semiconductor interfaces using in situ Atomic Force Microscopy ... Nano-scale characterization of catalytic metal nanoparticle -semiconductor interfaces using in situ Atomic Force Microscopy ...
https://www.utwente.nl/en/tnw/pcf/vacancies/phd-positions/phd-position-nano-scale-characterization-of-catalytic-metal-nanoparticle-semiconductor-interfaces-using-in-situ-atomic-force-microscopy/
Optical and nonlinear properties of photonic polymer nanocomposites and holographic gratings modified with noble metal...Optical and nonlinear properties of photonic polymer nanocomposites and holographic gratings modified with noble metal...
... of noble metals are modern-day materials that can be specially designed for photonics, linear and nonlinear optics, laser ... Nanocomposites based on transparent polymer matrices containing nanoparticles (NPs) ... Nanocomposites based on transparent polymer matrices containing nanoparticles (NPs) of noble metals are modern-day materials ... and nonlinear properties of photonic polymer nanocomposites and holographic gratings modified with noble metal nanoparticles. ...
https://publica.fraunhofer.de/entities/publication/777f7547-8635-4b0c-b905-d1e25420cc71
Carbon Nanotube Synthesis From Metal Nanoparticles Size-Classified by a Differential Mobility Analyzer | AJTEC | ASME Digital...Carbon Nanotube Synthesis From Metal Nanoparticles Size-Classified by a Differential Mobility Analyzer | AJTEC | ASME Digital...
... were synthesized from size-classified catalyst metal nanoparticles to observe the effect of the nanoparticles diameter on the ... Carbon nanotubes, Mechanical admittance, Metals, Nanoparticles, Catalysts, Multi-walled nanotubes, Chemical vapor deposition, ... Carbon Nanotube Synthesis From Metal Nanoparticles Size-Classified by a Differential Mobility Analyzer Masahiro Tomoda, ... After classification, the nanoparticles were collected on a Si substrate. CNTs were synthesized from these catalyst metal ...
https://asmedigitalcollection.asme.org/AJTEC/proceedings-abstract/AJTEC2011/38921/T30086/353379?redirectedFrom=PDF
publish.UP Nonaqueous synthesis of metal oxide nanoparticles and their assembly into mesoporous materialspublish.UP Nonaqueous synthesis of metal oxide nanoparticles and their assembly into mesoporous materials
... nanoparticles via nonaqueous sol-gel process and the formation of mesoporous metal oxides using some of these nanoparticles as ... nanoparticles are reported. SnO2 nanoparticles exhibit monodisperse particle size (3.5 nm in average), high crystallinity and ... All these mesoporous metal oxides show high crystallinity, high surface area and rather monodisperse pore sizes, which ... ITO nanoparticles possess uniform particle morphology, narrow particle size distribution (5-10 nm), high crystallinity as well ...
https://publishup.uni-potsdam.de/frontdoor/index/index/searchtype/authorsearch/author/Jianhua+Ba/rows/20/subjectfq/oxides/yearfq/2006/doctypefq/doctoralthesis/institutefq/Institut+f%C3%BCr+Chemie/author_facetfq/Ba%2C+Jianhua/docId/791/start/0
Hosted and free-floating metal-bearing atmospheric nanoparticles in Mexico city<...
Adachi, K., & Buseck, P. R. (2010). Hosted and free-floating metal-bearing atmospheric nanoparticles in Mexico city. ... Adachi, K & Buseck, PR 2010, Hosted and free-floating metal-bearing atmospheric nanoparticles in Mexico city, Environmental ... Hosted and free-floating metal-bearing atmospheric nanoparticles in Mexico city. / Adachi, Kouji; Buseck, P R. ... Hosted and free-floating metal-bearing atmospheric nanoparticles in Mexico city. Environmental Science and Technology. 2010 Apr ...
https://asu.pure.elsevier.com/en/publications/hosted-and-free-floating-metal-bearing-atmospheric-nanoparticles-
Novel In-situ Synthesis Route for Gadolinia-doped YSZ Rare Metal Oxide Composite Nanoparticles as a New Material for Fuel Cells...
Novel In-situ Synthesis Route for Gadolinia-doped YSZ Rare Metal Oxide Composite Nanoparticles as a New Material for Fuel Cells ...
https://research.monash.edu/en/projects/novel-in-situ-synthesis-route-for-gadolinia-doped-ysz-rare-metal-
Metal-rich airborne pollution nanoparticles in human hearts - Research Portal | Lancaster University
Find out more about Lancaster Universitys research activities, view details of publications, outputs and awards and make contact with our researchers.
https://www.research.lancs.ac.uk/portal/en/clippings/metalrich-airborne-pollution-nanoparticles-in-human-hearts
Resistive Random Access Memories (RRAMs) based on metal nanoparticles</em>...Resistive Random Access Memories (RRAMs) based on metal nanoparticles</em>...
keywords = "Nanoparticles, non-volatile memory, resistive switching, Metal nanoparticles, Non-volatile memories, Non-volatile ... based on metal nanoparticles",. abstract = "It is demonstrated that planar structures based on silver nanoparticles hosted in a ... Resistive Random Access Memories (RRAMs) based on metal nanoparticles. A. Kiazadeh, Paulo R.F. Rocha, Qian Chen, Henrique ... Kiazadeh, A, Rocha, PRF, Chen, Q & Gomes, HL 2011, Resistive Random Access Memories (RRAMs) based on metal nanoparticles. vol. ...
https://novaresearch.unl.pt/en/publications/resistive-random-access-memories-rrams-based-on-metal-nanoparticl
New class of porous metal nanoparticles will give rise to new capabilities in biomolecular absorption, chemical sensing and...New class of porous metal nanoparticles will give rise to new capabilities in biomolecular absorption, chemical sensing and...
University have made a significant advance in the way they produce exotic open-framework superlattices made of hollow metal ... New class of porous metal nanoparticles will give rise to new capabilities in biomolecular absorption, chemical sensing and ... Nanoparticle assembly driven by edge-bonding allows us to access a breadth of crystalline structures that we cannot access ... "We need to apply these new design rules to nanoporous metallic structures made of others metals, like aluminum, and we need to ...
https://news.northwestern.edu/stories/2022/10/new-class-of-porous-metal-nanoparticles/?fj=1
Assembly of metal nanoparticles into nanogaps<...
title = "Assembly of metal nanoparticles into nanogaps",. abstract = "The directed assembly of nanoparticles and nanoscale ... Assembly of metal nanoparticles into nanogaps. Robert J. Barsotti, Michael D. Vahey, Ryan Wartena, Yet Ming Chiang, Joel ... Barsotti RJ, Vahey MD, Wartena R, Chiang YM, Voldman J, Stellacci F. Assembly of metal nanoparticles into nanogaps. Small. 2007 ... Assembly of metal nanoparticles into nanogaps. / Barsotti, Robert J.; Vahey, Michael D.; Wartena, Ryan et al. ...
https://moh-it.pure.elsevier.com/en/publications/assembly-of-metal-nanoparticles-into-nanogaps
Nanoparticles and Single Atoms in Commercial Carbon-Supported Platinum-Group Metal Catalysts[v1] | PreprintsNanoparticles and Single Atoms in Commercial Carbon-Supported Platinum-Group Metal Catalysts[v1] | Preprints
The newly emerging field of single atom catalysis focuses on the ultimate level of metal dispersion, i.e. atomically dispersed ... metal species anchored on the substrate surface. However, the presence of single atoms in traditional nanoparticle-based ... These observations raise questions about the role that single atoms play in conventional nanoparticle PGM/C catalysts. We ... We show that in addition to nanoparticles, single atoms are also present on the surface of carbon substrates. ...
https://www.preprints.org/manuscript/201811.0492/v1
SYNTHESIS OF METAL OXIDES (Al2O3 AND ZrO2) NANOPARTICLES VIA PULSED LASER ABLATION IN LIQUIDS (PLAL) AND THEIR CHARACTERIZATION...SYNTHESIS OF METAL OXIDES (Al2O3 AND ZrO2) NANOPARTICLES VIA PULSED LASER ABLATION IN LIQUIDS (PLAL) AND THEIR CHARACTERIZATION...
SYNTHESIS OF METAL OXIDES (Al2O3 AND ZrO2) NANOPARTICLES VIA PULSED LASER ABLATION IN LIQUIDS (PLAL) AND THEIR CHARACTERIZATION ... SYNTHESIS OF METAL OXIDES (Al2O3 AND ZrO2) NANOPARTICLES VIA PULSED LASER ABLATION IN LIQUIDS (PLAL) AND THEIR CHARACTERIZATION ... XRD provides information about the structure of the nanoparticles synthesized, SEM, FE-SEM and TEM provided great information ... Detailed description of the experimental procedure involved in PLAL technique employed in this research to synthesize metal ...
https://eprints.kfupm.edu.sa/id/eprint/139845/
Applications of superparamagnetic nanoparticles for the separation and recovery of PGM metals from acidic wastewater solutionsApplications of superparamagnetic nanoparticles for the separation and recovery of PGM metals from acidic wastewater solutions
Naked magnetic iron oxide nanoparticles (MIONs) are promising materials for adsorption studies of metal ions/complexes from ... ENGLISH ABSTRACT: South Africa is one of the leading countries in the production of precious metals (Au and PGMs). The refinery ... Even though both methods improved the recovery of these metals from the ore, they still suffer from setbacks ranging from large ... The adsorption kinetics of the three metal complexes using naked MIONs followed a pseudo-second-order kinetic mode, indicating ...
https://scholar.sun.ac.za/handle/10019.1/105139
Applications of NanoparticlesApplications of Nanoparticles
For example, nanoparticles have the ability to transform trichloroethene. ... Nanoparticles have a number of practical applications, including the conversion of harmful pollutants into less harmful ones. ... Metal Alloy Fine Surface 19.15g/cm3 Tungsten Targets. About Metal Alloy Fine Surface 19.15g/cm3 Tungsten Targets:Chemical ... Functionalized gold nanoparticles. Functionalized gold nanoparticles (AuNPs) are gold nanoparticles with a cationic surface. ...
https://www.mis-asia.com/News/Applications-of-Nanoparticles.html
Far-field optical microscopy of single metal nanoparticles - ERef BayreuthFar-field optical microscopy of single metal nanoparticles - ERef Bayreuth
Far-field optical microscopy of single metal nanoparticles. In: Accounts of Chemical Research. Vol. 38 (2005) Issue 7 . - pp. ... Individual noble-metal particles, with sizes ranging from a few tenths to some hundreds of nanometers, can now be detected by ... Scattering methods rely on dark-field illumination, spectral signatures of the metal particles, or both. More advanced ... techniques provide high sensitivity and improved selectivity with respect to other scatterers by isolating metal-specific ...
https://eref.uni-bayreuth.de/28970/
Nanoparticle - WikipediaNanoparticle - Wikipedia
As for crystalline metal nanoparticles, dislocations were found to influence the mechanical properties of nanoparticles, ... Typical instances of this method are the production of metal oxide or hydroxide nanoparticles by hydrolysis of metal alkoxides ... nanoparticles enhance light absorption by increasing scattering. Recently, the metal core-dielectric shell nanoparticle has ... as metal carbides (SiC), nitrides (Aluminum nitrides, Silicon nitride), metals (Al, Cu), non-metals (graphite, carbon nanotubes ...
https://en.wikipedia.org/wiki/Nanoparticle
Gold Nanoparticles Improve Microlaser Frequency Comb | YenraGold Nanoparticles Improve Microlaser Frequency Comb | Yenra
By attaching gold nanoparticles to the surface of a microlaser, researchers in the University of Southern Californias Viterbi ... This process is further improved by a polymer coating on the nanoparticles. The power reduction decreases the systems ... we made exceptionally fast progress that challenged and disproved the conventional thought in the field that gold nanoparticles ...
https://yenra.com/gold-nanoparticles-microlaser-frequency-comb/
Oxide nanoparticlesOxidesParticlesPlasmonic nanoparticlesMetallic nanoparticlesManufactured nanomaterialsCore-shell nanoparticlesCatalystNanotechnologyTransition-Metal NanoparticlesAbstractApplications of NanoparticlesNanocompositesCatalystsCatalysisCarbonMagnetite nanoparticlesSemiconductorNoble metalPolymericAntimicrobialChemistryAqueous solutionMesoporousMagneticAntibacterialLipidMelting temperaturePolymersCharacterizationTitaniumSurface plasmonAerosolSuperparamagneticCobaltSphericalUbiquitousMaterialsExhibitPorousZincMorphologyCatalytic activityNanogapsPropertiesGoldFMPSNanoscaleSilverNano-sizedProcessesDispersionCopperDiameter2020NIOSHSulfideResearchers
Oxide nanoparticles13
  • This thesis mainly consist of two parts, the synthesis of several kinds of technologically interesting crystalline metal oxide nanoparticles via nonaqueous sol-gel process and the formation of mesoporous metal oxides using some of these nanoparticles as building blocks via evaporation induced self-assembly (EISA) technique. (uni-potsdam.de)
  • Naked magnetic iron oxide nanoparticles (MIONs) are promising materials for adsorption studies of metal ions/complexes from wastewater due to their versatile magnetic properties, which allow a facile remote control, separation and analyte recovery from solution. (sun.ac.za)
  • Due to the different antibacterial mechanisms of Ag nanoparticles (AgNPs) and metal oxide nanoparticles (MONPs), and their unique physicochemical characteristics, combination of these components in a single nanoplatform provides a multifunctional nanohybrid possessing synergistic effectiveness for a broader range of bacteria, especially for those which are resistant to common antibacterial drugs. (uniroma1.it)
  • Empa researcher Lukas Gerken from Empa's Particles-Biology Interactions laboratory in St. Gallen and the Nanoparticle Systems Engineering laboratory at ETH Zurich is already using specially developed metal oxide nanoparticles in laboratory experiments to increase the sensitivity of tumors during radiation therapy. (admin.ch)
  • Gerken's project is based on metal oxide nanoparticles used as "radiosensitizers. (admin.ch)
  • State of the Art on Toxicological Mechanisms of Metal and Metal Oxide Nanoparticles and Strategies to Reduce Toxicological Risks. (wjgnet.com)
  • Crocin averts functional and structural rat hepatic disturbances induced by copper oxide nanoparticles. (wjgnet.com)
  • Metal and metal oxide nanoparticles have gained quite some interest as antimicrobials to target multidrug resistant bacteria. (pletzerlab.com)
  • To assess the effect of adding zinc oxide nanoparticles to dental adhesives on their anti-microbial and bond strength properties. (bvsalud.org)
  • Incorporation of zinc oxide nanoparticles into dental adhesives increases their anti-microbial properties without affecting their bond strength. (bvsalud.org)
  • The purpose of this study was to assess the effect of adding zinc oxide nanoparticles to Single Bond dental adhesive on its antibacterial and bond strength properties. (bvsalud.org)
  • 3M ESPE, MN, USA) in the first group, Single Bond with 5% zinc oxide nanoparticles in the second group and Single Bond with 10% zinc oxide nanoparticles in the third group. (bvsalud.org)
  • Zinc oxide nanoparticles (Pishgaman Nano-Material Co., Mashhad, Iran) had an average particle size of 20 nm with a crystalline structure. (bvsalud.org)
Oxides9
  • The global nanoparticles - metal & metal oxides market in healthcare was estimated at USD 25.86 billion in 2016. (grandviewresearch.com)
  • Here we demonstrate the improvement of catalytic activity when transition metal oxide (iron, cobalt, nickel oxides and their mixed oxides) nanoparticles ( ∼ 20 nm) are electrochemically transformed into ultra-small diameter (2-5 nm) nanoparticles through lithium-induced conversion reactions. (nature.com)
  • Recently, nanostructured composites of conductive carbons and earth-abundant metals or metal oxides have emerged as promising electrocatalysts. (rsc.org)
  • The synthesis approaches and characterization of various mesoporous metal oxides, including TiO2, SnO2, mixture of CeO2 and TiO2, mixture of BaTiO3 and SnO2, are reported in the second part of this thesis. (uni-potsdam.de)
  • All these mesoporous metal oxides show high crystallinity, high surface area and rather monodisperse pore sizes, which demonstrate the validity of EISA process and the usage of preformed crystalline nanoparticles as nanobuilding blocks (NBBs) to produce mesoporous metal oxides. (uni-potsdam.de)
  • Some cellulose materials have been functionalized with metals or metal oxides. (mis-asia.com)
  • Welders are exposed to a range of fumes and gases (evaporated metal, metal oxides, hydrocarbons, nanoparticles, ozone, oxides of nitrogen (NOx) ) depending on the electrodes, filler wire and flux materials used in the process, but also physical exposures such as electric and magnetic fields (EMF) and ultraviolet (UV) radiation. (who.int)
  • Fume particles contain a wide variety of oxides and salts of metals and other compounds, which are produced mainly from electrodes, filler wire and flux materials. (who.int)
  • Oxides of nitrogen are found during manual metal arc welding and particularly during gas welding. (who.int)
Particles11
  • In biomedical applications the particles frequently involve the noble metals, especially gold and silver. (harvard.edu)
  • We focus on NPs that were either free-floating or hosted within large aerosol particles (aerodynamic diameter 50-300 nm) and consist of or contain transition or post-transition metals (m-NPs). (elsevier.com)
  • Individual noble-metal particles, with sizes ranging from a few tenths to some hundreds of nanometers, can now be detected by far-field optics. (uni-bayreuth.de)
  • Scattering methods rely on dark-field illumination, spectral signatures of the metal particles, or both. (uni-bayreuth.de)
  • They include the type of solvent and the rate of evaporation, the size and concentration of the nanoparticles, as well as the properties of the so-called ligands surrounding the particles and their density. (it-chuiko.com)
  • Nanometer iron particles are submicron particles of the metal iron. (cookingmamacookoff.com)
  • Chemical reduction method: is the use of a certain reducing agent will be metal ferric salt or its oxide reduction of nano iron particles, this method can be divided into solid-phase reduction method, liquid-phase reduction method and gas-phase reduction method. (cookingmamacookoff.com)
  • This report describes an investigation in which NIOSH used iron-doped diesel fuel to generate metal-bearing diesel particles and a subsequent analysis of the particles using transmission electron microscopy (TEM) and energy-dispersive spectroscopy (EDS). (cdc.gov)
  • The sensor that the researchers have developed is based on an optical phenomenon, plasmons, which occur when metal nanoparticles capture light and give the particles a distinct colour. (expertsvar.se)
  • These represent an incredible array of simple 2-dimensional nanoparticles (e.g., dots), simple 3-dimensional particles (e.g., spheres) and the more complex 3-dimensional matrices. (edu.au)
  • A feature that sets nanoparticles apart from other particles is their relatively large surface area relative to their small size. (edu.au)
Plasmonic nanoparticles4
  • This work establishes the potential of plasmonic nanoparticles for highly sensitive biosensing and holds much promise for the improvement of biomedical diagnostics. (dcu.ie)
  • It is emphasized that this effect may underlie the nonlinear optical response of composite materials containing plasmonic nanoparticles and their aggregates. (kirensky.ru)
  • These results suggest that such "sweet" plasmonic crystals are promising for large-scale robust platforms to embed plasmonic nanoparticles. (bilkent.edu.tr)
  • Development and application of QM/classical models to describe the effects of plasmonic nanoparticles on the spectroscopic properties of nearby molecules. (gaussian.com)
Metallic nanoparticles3
  • Currently, biologists and scientists are involved in conducting research activities to enhance understanding of metallic nanoparticles in order to reduce the toxicity issues associated with their usage. (grandviewresearch.com)
  • We have shown significant suppression of resonant properties of metallic nanoparticles at the surface plasmon frequency during the phase transition "solid-liquid" in the basic materials of nanoplasmonics (Ag, Au). (kirensky.ru)
  • Hybrid structures of carbon nanomaterials with metallic nanoparticles can be also synthesized. (r-nano.gr)
Manufactured nanomaterials1
  • Titanium dioxide (TiO2) nanoparticles (NPs) are one of the most widely used manufactured nanomaterials in industrial and consumer products, with predicted environmental loads as high as 2,000,000 to 6,000,000 tons in the next 10 years. (usda.gov)
Core-shell nanoparticles3
  • Transition-metal, core-shell nanoparticles are becoming ubiquitous from (electro-) catalysis to biomedical applications, due to control of size, performance, biocompatibility, and cost. (aps.org)
  • Herein, we report a versatile and inexpensive synthetic method for the production of [email protected] sulfide core-shell nanoparticles (metal = cobalt, nickel) embedded in the walls of sulfur- and/or nitrogen-doped hollow carbon capsules. (rsc.org)
  • The supported [email protected] sulfide and [email protected] oxide core-shell nanoparticles proved to be excellent catalysts for the electrochemical reduction of oxygen and evolution of oxygen from water, and they were far superior to analogous zerovalent metal nanoparticles. (rsc.org)
Catalyst7
  • This graph shows the total number of publications written about "Metal Nanoparticles" by people in Harvard Catalyst Profiles by year, and whether "Metal Nanoparticles" was a major or minor topic of these publication. (harvard.edu)
  • Here we demonstrate a novel bifunctional catalyst of lithium-induced ultra-small NiFeO x nanoparticles (NPs), with a remarkable performance of only 1.51 V (280 mV overpotential) to achieve 10 mA cm −2 current in 1 M KOH solution for long-term operation. (nature.com)
  • In this study, carbon nanotubes (CNTs) were synthesized from size-classified catalyst metal nanoparticles to observe the effect of the nanoparticles' diameter on the diameter of the CNTs. (asme.org)
  • CNTs were synthesized from these catalyst metal nanoparticles by using chemical vapor deposition. (asme.org)
  • Zirconia-supported sodium-salt-modified Au(0) nanoparticles (NPs) (Na-Au/ZrO 2 ) catalyst was prepared, and it was stable and recyclable in the intramolecular cyclization of alkynoic acids. (elsevier.com)
  • Here, we report the development of a cost-effective and highly active nickel(0) nanoparticles catalyst for the hydrolysis of ammonia-borane and sodium borohydride. (metu.edu.tr)
  • As shown in characterization results, after the catalyst was calcined at high temperatures (700 and 900 ℃), the Au nanoparticle size on the Au/LaMnO 3 -AE catalyst was lower than those on Au/LaMnO 3 and Au/LaMn 1.2 O 3 catalysts, leading to high reducibility and catalytic activity of the Au/LaMnO 3 -AE catalyst. (pku.edu.cn)
Nanotechnology3
  • The directed assembly of nanoparticles and nanoscale materials onto specific locations of a surface is one of the major challenges in nanotechnology. (elsevier.com)
  • Toxicity of Nanoparticles in Plants: An Evaluation of Cyto/Morpho-physiological, Biochemical and Molecular Responses, Volume Five in the Nanomaterial-Plant Interactions series, reviews the latest research on toxicological effects of using nanotechnology in plants. (elsevier.com)
  • A New and Efficient Method for the Adsorption and Separation of Arsenic Metal Ion from Mining Waste Waters of Zarshouran Gold Mine by Magnetic Solid-Phase Extraction with Modified Magnetic Nanoparticles', International Journal of Nanoscience and Nanotechnology , 9(3), pp. 121-126. (ijnnonline.net)
Transition-Metal Nanoparticles2
  • Over the last decade, transition metal nanoparticles have attracted much attention owing to their unique properties, different to their bulk counterparts, which facilitate their application in different fields from materials science to engineering. (metu.edu.tr)
  • Of particular interest, the use of transition metal nanoparticles in catalysis has brought transcendent efficiency in terms of activity, selectivity and lifetime to heterogeneous catalysis. (metu.edu.tr)
Abstract2
  • abstract = "It is demonstrated that planar structures based on silver nanoparticles hosted in a polymer matrix show reliable and reproducible switching properties attractive for non-volatile memory applications. (unl.pt)
  • ENGLISH ABSTRACT: South Africa is one of the leading countries in the production of precious metals (Au and PGMs). (sun.ac.za)
Applications of Nanoparticles1
  • The present report is an update of the 2001 report on biomedical, pharmaceutical, and cosmetic applications of nanoparticles. (bccresearch.com)
Nanocomposites5
  • Nanocomposites based on transparent polymer matrices containing nanoparticles (NPs) of noble metals are modern-day materials that can be specially designed for photonics, linear and nonlinear optics, laser physics and sensing applications. (fraunhofer.de)
  • The addition of nanoparticles to 2-8-2010 · This article provides an up-to-date review on nanocomposites composed of inorganic nanoparticles and the polymer matrix for optical and magnetic applications. (jsswarriorsupport.com)
  • First principles studies of interface dielectric properties of polymer/metal-oxide nanocomposites. (jsswarriorsupport.com)
  • In these nanocomposites, organic polymer can not only stabilize the nanoparticles in a solid matrix, but also effectively combine the peculiar features of organic and inorganic components and thus resulting in novel properties. (openwetware.org)
  • A wide range of applications is considered for these nanoparticles, including smart debonding applications through induction heating, antimicrobial polymers and filaments, self-healing applications in polymer nanocomposites and others. (r-nano.gr)
Catalysts8
  • Nanoparticles produced from metals whose uses include biosensors, optics, and catalysts. (harvard.edu)
  • We demonstrate that lithium-induced ultra-small NiFeO x nanoparticles are active bifunctional catalysts exhibiting high activity and stability for overall water splitting in base. (nature.com)
  • However, going beyond state-of-the-art catalysts that are based on expensive noble metals remains a major challenge. (rsc.org)
  • Nanoparticles of platinum-group metals (PGM) on carbon supports are widely used as catalysts for a number of chemical and electrochemical conversions on laboratory and industrial scale. (preprints.org)
  • However, the presence of single atoms in traditional nanoparticle-based catalysts remains largely overlooked. (preprints.org)
  • In this work we use aberration-corrected scanning transmission electron microscope to investigate four commercially available nanoparticle-based PGM/C catalysts (PGM = Ru, Rh, Pd, Pt). (preprints.org)
  • These observations raise questions about the role that single atoms play in conventional nanoparticle PGM/C catalysts. (preprints.org)
  • H 2 -TPR results revealed that the reducibility of the catalysts changed largely after thermal treatment at high temperatures, and was mainly influenced by the agglomeration of Au nanoparticles. (pku.edu.cn)
Catalysis1
  • The newly emerging field of single atom catalysis focuses on the ultimate level of metal dispersion, i.e. atomically dispersed metal species anchored on the substrate surface. (preprints.org)
Carbon11
  • The fabrication of these materials was achieved via the thermal decomposition of sacrificial metal-organic framework nanocrystals coated with a metal-tannic acid coordination polymer shell, which delivered zerovalent metal nanoparticles embedded in the walls of the nitrogen-doped hollow carbon capsules. (rsc.org)
  • We show that in addition to nanoparticles, single atoms are also present on the surface of carbon substrates. (preprints.org)
  • For example, nanoparticles have the ability to transform trichloroethene, a major pollutant in industrial wastewater, into harmless carbon dioxide and water. (mis-asia.com)
  • Iron nanoparticles have a uniform particle size, narrow particle size distribution, high purity and low content of carbon, nitrogen, oxygen, sulfur, phosphorus and other harmful elements. (cookingmamacookoff.com)
  • Iron, cobalt, zinc oxide powders and carbon-coated metal powders can be used as stealth materials with millimeter-wave properties for military applications. (cookingmamacookoff.com)
  • Lithium metal coats the hybrid graphene and carbon nanotube anode in a battery created at Rice University. (nanowerk.com)
  • Rice researchers led by chemist James Tour found that when the new batteries are charged, lithium metal evenly coats the highly conductive carbon hybrid in which nanotubes are covalently bonded to the graphene surface. (nanowerk.com)
  • An electron microscope image shows a carbon nanotube evenly coated with lithium metal. (nanowerk.com)
  • Elemental carbon (EC) is used as a surrogate for regulating the exposure to diesel particulate matter (DPM) of underground metal/nonmetal miners. (cdc.gov)
  • The assay relies on the hybridization of the target DNA with the silver nanoparticle - oligonucleotide DNA probe, followed by the release of the silver metal atoms anchored on the hybrids by oxidative metal dissolution and the indirect determination of the solubilized Ag I ions by anodic stripping voltammetry ( ASV ) at a carbon fiber ultramicroelectrode. (rsc.org)
  • The formula is very simple: water and ethanol -a type of ecological alcohol- derived from tomato skin and carbon nanoparticles. (chemwatch.net)
Magnetite nanoparticles2
  • This work makes use of magnetite nanoparticles (MIONs) which are superparamagnetic and less expensive compared to adsorbents used by the South African refineries for extraction of Au(III)-Cl, Pd(II)-Cl and Pt(IV)-Cl complexes from acidic aqueous solutions. (sun.ac.za)
  • The adsorption behaviors of arsenic from an aqueous medium, using iron magnetite nanoparticles were studied by using equilibrium batch and column flow techniques. (ijnnonline.net)
Semiconductor3
  • In the latter context, the present PhD project focuses on AFM-based spectroscopy to characterize the interfaces between electrolyte, semiconductor- and cocatalyst-nanoparticles under photocatalytic operating conditions (i.e. in liquid, under applied bias and illumination) and to establish correlations between local surface properties such as atomic scale structure, charge density, and hydration and the resulting photocatalytic activity. (utwente.nl)
  • A team led by DESY scientists Irina Lokteva and Felix Lehmkuhler from the Coherent X-ray Scattering Group led by Gerhard Grubel has observed the self-organization of these semiconductor nanoparticles in real-time. (it-chuiko.com)
  • Couples fluorescent biological tags to semiconductor CdS nanoparticles. (gelest.com)
Noble metal6
  • Noble metal nanoparticles exhibit a unique optical property known as localized surface plasmon resonance (LSPR), which occurs when interacting light couples to the collective oscillations of the surface electrons. (dcu.ie)
  • Das, Puspendu K. (2009) "Small-particle limit" in the second harmonic generation from noble metal nanoparticles Chemical Physics, 358 (3). (ias.ac.in)
  • We have identified the "small-particle limit" in the second harmonic generation from noble metal nanoparticles by evaluating the critical d/λ ratio at which the retardation effect sets in the noble metal nanoparticles. (ias.ac.in)
  • Hence, an overview of gas sensors is presented, including electronic-nose systems, followed by a description of the surface plasmons that arise in noble metal thin films and nanoparticles. (academic-accelerator.com)
  • We study light-matter interactions leading to the generation of photon drag voltage under surface plasmon resonance conditions in noble metal thin films and observe important effects, which provide opportunity for condensed matter theorists to critically evaluate theoretical models. (academic-accelerator.com)
  • The purpose of this work was to use supported noble metal nanoparticles in the selective photo-oxidation of glucose through using visible light. (unibo.it)
Polymeric4
  • Click" chemistry has become an efficient avenue to unimolecular polymeric nanoparticles through the self-crosslinking of individual polymer chains containing appropriate functional groups. (ehu.es)
  • Enamine "click" chemistry increases the synthetic toolbox for the efficient synthesis of metal-free, ultra-small polymeric NPs. (ehu.es)
  • Novel fibers, soft nanoparticles and new polymeric thickeners are being designed and prepared by improved understanding of the delicate balance between hydrophilic (often electrostatic) and hydrophobic interactions. (uc.pt)
  • State-of-the-art nanoparticles, such as polymeric, lipid, and metal-based, are being widely investigated for their potential to improve the effectiveness of both conventional drugs and novel compounds for treating AD. (ucl.ac.uk)
Antimicrobial4
  • Silver (Ag) is known for its Ag+ ion-based antimicrobial properties and therefore Ag nanoparticles (NPs) are one of the most used NMs in consumer products. (ut.ee)
  • ZnO NPs were supplemented with Ag NPs (ZnO/Ag composite NPs) to prepare efficient antimicrobial coatings with a combined effect from photocatalysis and antimicrobial metal ions (Ag+, Zn2+). (ut.ee)
  • Researchers in the past have used various nanomaterial coatings to enhance the antimicrobial properties of metal surfaces but these coatings are prone to leach off and can be toxic to the environment. (techbriefs.com)
  • Particularly, silver nanoparticles have shown to possess broad-spectrum antimicrobial activity. (pletzerlab.com)
Chemistry1
  • Based on our extensive experience with a marine biology, metal chemistry and ocean optics, we have developed several lines of research that examine the photocatalytic effects of TiO2 under environmentally-relevant conditions. (usda.gov)
Aqueous solution2
  • In the colloid area, we highlight the study of the interactions between metal ions, surfactants and polymers in aqueous solution, evaluating and controlling properties such as the beginning of self-aggregation, types of aggregates formed, and the rheological behavior. (uc.pt)
  • A novel advanced magnetic matter adsorbent using magnetite embedded within nanosized Fe3O4 was prepared and applied for separation of arsenic metal ion from aqueous solution. (ijnnonline.net)
Mesoporous3
  • SnO2 nanoparticles exhibit monodisperse particle size (3.5 nm in average), high crystallinity and particularly high dispersibility in THF, which enable them to become the ideal particulate precursor for the formation of mesoporous SnO2. (uni-potsdam.de)
  • To name a few: magnetic nanoparticles based on iron (Fe), mesoporous silica spheres (SiO2), silver nanoparticles (Ag), etc. (r-nano.gr)
  • Treatment of mesoporous silica yields highly efficient heavy metal scavenger. (gelest.com)
Magnetic5
  • Functionalized magnetic nanoparticles (FMPs) are emerging as key players in the biomedical field, especially in biosensing. (mis-asia.com)
  • The unique properties of magnetic nanoparticles make them a promising drug delivery platform. (mis-asia.com)
  • Gadolinium and other metals possess multiple electrons that help them influence how the magnetic waves produced by an MRI interact with water molecules in tissue. (rdworldonline.com)
  • This adsorbent combines the advantages of magnetic nanoparticles with magnetic separability and high affinity toward arsenic metal ions, which provides distinctive merits including easy preparation, high adsorption capacity, and easy isolation from sample solutions by the application of an external magnetic field. (ijnnonline.net)
  • The effects of pH, contents of loaded magnetic matter nanoparticles, ionic strength, adsorbent dose, contact time, and temperature on adsorption capacity of the magnetic beads were investigated. (ijnnonline.net)
Antibacterial2
  • However, silver nanoparticles (Ag NPs) are known to be antibacterial. (nih.gov)
  • In the form of nanoparticles, it shows significantly higher antibacterial activity due to increased surface/volume ratio 6 . (bvsalud.org)
Lipid2
  • A recent study shows that lipid-based nanoparticles can deliver genetic material and instructions for protein production. (mis-asia.com)
  • Using a one-step process, functionalized lipid nanoparticles are fabricated by preparing a thin lipid film. (mis-asia.com)
Melting temperature1
  • Experimental verification was performed for single Au nanoparticles heated to the melting temperature and above up to full suppression of the surface plasmon resonance. (kirensky.ru)
Polymers3
  • Conducting polymers containing incorporated gold or silver nanoparticles have been synthesized using ionic liquid solutions of gold chloride or silver nitrate. (edu.au)
  • The molybdenum disulfide applications industry has a strong research environment in electronic and photonic materials, energy materials, glass, hard materials, composites, light metals, polymers and biopolymers, porous materials and specialty steels. (it-chuiko.com)
  • The researchers have begun testing the technology on the surfaces of other metals and polymers that are used to reduce risks of bacterial growth and biofilm formation on devices such as orthopedic implants or wearable patches for chronic wounds. (techbriefs.com)
Characterization2
  • An air quality survey was conducted at a precious metals refinery in order to evaluate worker exposures to airborne metals and to provide detailed characterization of the aerosols. (cdc.gov)
  • In the first part, the experimental procedures and characterization results of successful syntheses of crystalline tin oxide and tin doped indium oxide (ITO) nanoparticles are reported. (uni-potsdam.de)
Titanium1
  • What are Nitrogen-doped titanium dioxide nanoparticles? (nmfbihop.com)
Surface plasmon1
  • In this project, we focus on doped metal oxide nanocrystals bearing localized surface plasmon resonances (LSPRs) as versatile compounds for the design of electrochromic devices with independent management of light and heat supplies in buildings. (unamur.be)
Aerosol1
  • Whole-body nanoparticle aerosol inhalation exposure. (cdc.gov)
Superparamagnetic1
  • As-synthesized nanoparticles are around 4.5 nm and show superparamagnetic behavior at 300 K. After annealing under 60 bar pressure of hydrogen at 400 degrees C for 2 h, nanoparticles exhibit strong ferromagnetic behavior with 5391 Oe coercivity. (metu.edu.tr)
Cobalt1
  • I reasoned that lithium metal must have plated on the electrode while analyzing results of experiments carried out to store lithium ions in the anode material combined with a lithium cobalt oxide cathode in a full cell," Raji said. (nanowerk.com)
Spherical2
  • In order to address the complex assay design, a simpler aggregation-based assay for the detection of human IgG was implemented using spherical gold nanoparticles. (dcu.ie)
  • In this work, the enhancement effects of the AuTSNPs and spherical silver nanoparticles (AgNPs) on the fluorescence were evaluated. (dcu.ie)
Ubiquitous1
  • Nanoparticles (NPs) are ubiquitous in the atmosphere. (elsevier.com)
Materials10
  • The new study identifies 12 unique porous nanoparticle superlattices with control over symmetry, geometry and pore connectivity to highlight the generalizability of new design rules as a route to making novel materials. (northwestern.edu)
  • About 90 billion tons of raw materials -- mainly metals, minerals, fossil matter and biomass -- are extracted each year to produce raw materials. (it-chuiko.com)
  • The molybdenum disulfide applications materials production accounts for about 25 percent of greenhouse gas emissions, and metal smelting consumes about 8 percent of the energy generated by humans. (it-chuiko.com)
  • Hard materials (metals) and specialty steels now account for more than half of Swedish materials sales (excluding forest products), while glass and energy materials are the strongest growth areas. (it-chuiko.com)
  • There are a number of other published reports and studies covering various aspects of the market for nanoparticles and nanostructured materials. (bccresearch.com)
  • Applications: metal and non-metal ores, building materials, artificial sand, metallurgical slag HP300 PUSH BUTTON XB4-BP21 China Xb4 Cabinet Panel Push Button Switch Sp-4bd33. (wroclawpodlogi.pl)
  • Some materials such as quantum nanodots, organic dyes and metal nanoparticles have been extensively used for biological labeling, however, they have to be surface modified to better suit their integration with biological systems. (openwetware.org)
  • The Indian researchers knew that Silver (Ag) ions released from the metal into a nanoparticle form, worked as a disinfectant for a number of bacteria and viruses found in contaminated H2O, while other inorganic toxins, such as Lead (Pb), Iron (Fe) and Arsenic (As), can be scavenged from contaminated H2O with materials containing different chemical properties, particular to each of those elements. (dcncorp.com)
  • To overcome such an issue, the researchers created an unique family of nano-crystalline metal oxyhydroxide-chitosan granular composite materials. (dcncorp.com)
  • In some cases engineered nanoparticles or materials are likely to be classified as hazardous chemicals under the Work Health and Safety Act 2011 , based on the physicochemical properties of the actual nanomaterial and/or that of the parent materials. (edu.au)
Exhibit1
  • So Nebraska chemist Andrzej Rajca began collaborating with colleagues at MIT to design a metal-free nanoparticle that would exhibit stability and relaxivity comparable to gadolinium's. (rdworldonline.com)
Porous1
  • We used calculations modeling the situation in which an index-matched substrate with a metal thin film and a porous chiral sculptured thin film (CSTF) deposited successively on it is affixed to the base of a triangular prism. (academic-accelerator.com)
Zinc1
  • Results of TEM/EDS analyses confirmed the high number of nanoparticles measured by the FMPS and indicated the aerosols were rich in metals including silver, lead, antimony, selenium, and zinc. (cdc.gov)
Morphology1
  • ITO nanoparticles possess uniform particle morphology, narrow particle size distribution (5-10 nm), high crystallinity as well as high electrical conductivity. (uni-potsdam.de)
Catalytic activity1
  • Catalytic Activity of Au Nanoparticles Supported on LaMnO 3 Perovskite with Different Composition and Structure[J].Acta Physico-Chimica Sinica, 2019, 35(4): 422-430. (pku.edu.cn)
Nanogaps1
  • Highly sensitive near-infrared SERS nanoprobes for in vivo imaging using gold-assembled silica nanoparticles with controllable nanogaps. (harvard.edu)
Properties9
  • The Physics of Complex Fluids (PCF) group ( http://www.utwente.nl/en/tnw/pcf/ ), aims to provide fundamental understanding of the physical and chemical properties of solid-liquid interfaces in the context of a variety of application areas including wetting, friction and lubrication, carbonate mineralization, and photo- and electrocatalysis. (utwente.nl)
  • Using this suite of AFM-based methods, the ultimate goal of the project is to generate insights how nanoscale surface properties affect the overall catalytic performance of photo/electrochemically active catalytic nanoparticles. (utwente.nl)
  • Gold nanoparticles have unique optical and chemical properties. (mis-asia.com)
  • About Metal Alloy High Purity Tungsten Boat Evaporation Boats Of Tungsten:Properties: good conductivity, heat conduction, high temperature resistance, wear resistance and corrosion resistance.Applicat. (mis-asia.com)
  • In this research, the effect of the addition of zirconium oxide-synthesized nanoparticles on the microstructural development and the physical-mechanical properties of cement mortars with limestone aggregates was studied. (mdpi.com)
  • Iron nanoparticles have a large specific surface area, a strong tunneling effect and a small boundary effect, and also have the general properties of ordinary iron. (cookingmamacookoff.com)
  • Now the young talent wants to equip the nanoparticles with further properties for increased effectiveness. (admin.ch)
  • Silver nanoparticles are spontaneously formed inside of the PVCa phases due to the reductive properties of the catechol moieties. (elsevier.com)
  • The manufacture of nanoparticles or nanomaterials with at least one dimension less than 100 nanometres to give them useful chemical, physical, electrical or optical properties. (edu.au)
Gold18
  • Gold nanoparticles held the largest share owing to the huge adoption of these in human therapeutic development. (grandviewresearch.com)
  • Factors such as better compatibility, low toxicity & tunable stability, and small dimensions are supportive of this steady rise in the adoption of gold nanoparticles. (grandviewresearch.com)
  • Inner-Membrane-Bound Gold Nanoparticles as Efficient Electron Transfer Mediators for Enhanced Mitochondrial Electron Transport Chain Activity. (harvard.edu)
  • Anti-Caspr-conjugated gold nanoparticles emergence as a novel approach in the treatment of EAE animal model. (harvard.edu)
  • Plasmon color-preserved gold nanoparticle clusters for high sensitivity detection of SARS-CoV-2 based on lateral flow immunoassay. (harvard.edu)
  • Gold nanoparticles, 20 nm in diameter, were assembled inside electrical gaps ranging from 15 to 150 nm with the use of positive ac dielectrophoresis. (elsevier.com)
  • Functionalized gold nanoparticles (AuNPs) are gold nanoparticles with a cationic surface. (mis-asia.com)
  • Gold nanoparticles are also highly adaptable, allowing them to fit in different chemical environments and aqueous suspensions. (mis-asia.com)
  • Several of the applications of gold nanoparticles are described below. (mis-asia.com)
  • By attaching gold nanoparticles to the surface of a microlaser, researchers in the University of Southern California's Viterbi School of Engineering demonstrated a frequency comb that takes up less space and requires 1000 times less power than current comb technology. (yenra.com)
  • By combining expertise in optics and in nanomaterials, we made exceptionally fast progress that challenged and disproved the conventional thought in the field that gold nanoparticles would be detrimental to the laser. (yenra.com)
  • As a solution, here we present a new plasmonic composite structure consisting of gold nanoparticles (Au NPs) incorporated into sucrose macrocrystals on a large scale, while preserving the plasmonic nature of the Au NPs and providing robustness in handling at the same time. (bilkent.edu.tr)
  • They constructed the chemoelectronic devices by coating gold nanoparticles with any of four types of organic molecules called ligands. (electronics-lab.com)
  • We have found that the second-order nonlinear optical property of copper nanoparticles closely resembles that of gold, but not that of silver. (ias.ac.in)
  • IMSEAR at SEARO: Electrochemical studies of glucose oxidase immobilized on glutathione coated gold nanoparticles. (who.int)
  • GSH) forms a surface monolayer on gold nanoparticles by tethering via sulfur bonds (Au:GSH). (who.int)
  • The present study demonstrated that GOx was effectively coupled to the gold nanoparticle (Au:GSH). (who.int)
  • Furthermore, the work focuses on the influence of gold and silver nanoparticles and on the influence of metal loading. (unibo.it)
FMPS1
  • Measurements with the FMPS indicated that particle number concentrations near the furnace increased up to 1000-fold above the baseline during the pouring of molten metal. (cdc.gov)
Nanoscale2
  • Block copolymer phase separation has been employed to form templates for the fabrication of nanoscale patterns of metals due to their characteristic size scales that range from several nanometers to tens of nanometers. (elsevier.com)
  • Nanomaterials are categorised by both size and substance, with nanoparticles considered to be those within the nanoscale, or more specifically have at least one dimension within one (1) and 100 nm. (edu.au)
Silver5
  • 2) The TiO 2 NTs were exposed to the silver ammonia first and then to δ-gluconolactone (the 'sequential addition method'), which resulted in the formation of nano-sized clusters of the nanoparticles. (nih.gov)
  • To the naked eye, anodes within the quarter-sized batteries were dark when empty of lithium metal and silver when full, the researchers reported. (nanowerk.com)
  • A novel, sensitive electrochemical DNA hybridization detection assay, using silver nanoparticles as the oligonucleotide labeling tag, is described. (rsc.org)
  • The combination of the remarkable sensitivity of the stripping metal analysis at the microelectrode with the large number of silver( I ) ions released from each DNA hybrid allows detection at levels as low as 0.5 pmol L −1 of the target oligonucleotides . (rsc.org)
  • The alignment and formation of silver nanoparticle arrays is successfully achieved without the need for high-temperature thermal treatment or chemical reduction processes. (elsevier.com)
Nano-sized2
  • A unique guide to an essential area of nanoscience Interest in nano-sized metals has increased greatly due to their special characteristics and suitability for a number of advanced applications. (jsswarriorsupport.com)
  • Explosibility of nano-sized metal powders. (cdc.gov)
Processes2
  • The refinery final stages for recovering precious metals makes use of two hydrometallurgical processes: solvent extraction and extraction with ion exchangers. (sun.ac.za)
  • Most welding is performed using electric arc processes - manual metal arc, metal inert gas and tungsten inert gas welding - and most welding is on mild steel. (who.int)
Dispersion1
  • The damp reunion will affect Iron nanoparticles dispersion performance and using effects, therefore, this iron powder should be sealed in vacuum packing and stored in cool and dry room and it should not be exposure to air. (cookingmamacookoff.com)
Copper2
  • Metals such as copper normally have a very smooth surface, which makes it difficult for the metal to kill bacteria by contact. (techbriefs.com)
  • In this paper, we have probed the origin of SHG in copper nanoparticles by polarization-resolved hyper-Rayleigh scattering (HRS). (ias.ac.in)
Diameter2
  • The nanoparticles were generated by laser vaporization and classified by a differential mobility analyzer, which sorts them by diameter according to differences in electrical mobility. (asme.org)
  • 2008), nanoparticles in mild steel metal active gas welding showed a mass median diameter (MMMD) of 200-300 nm. (who.int)
20201
  • In the changed post COVID-19 business landscape, the global market for Metal Nanoparticles estimated at US$2.6 Billion in the year 2020, is projected to reach a revised size of US$5.1 Billion by 2027, growing at a CAGR of 10.1% over the analysis period 2020-2027. (strategyr.com)
NIOSH1
  • NIOSH conducted a study of the explosibility of various metals and other elemental dusts dispersed in air to aid in understanding dust cloud combustion and in evaluating the explosion hazards in the minerals and metals processing industries. (cdc.gov)
Sulfide4
  • Metal oxide nanoparticle shells were also generated as an alternative to the metal sulfide shells. (rsc.org)
  • Subsequent pyrolysis processing in the presence of thiourea produced the metal sulfide nanoparticle shell. (rsc.org)
  • Lead sulfide nanoparticles molybdenum disulfide applications often undergo surprising structural changes when assembled into ordered superlattices. (it-chuiko.com)
  • In addition, lead sulfide nanoparticles are used in photovoltaic cells, light-emitting diodes and other electronic devices. (it-chuiko.com)
Researchers3
  • EVANSTON, Ill. --- Researchers from Northwestern University have made a significant advance in the way they produce exotic open-framework superlattices made of hollow metal nanoparticles. (northwestern.edu)
  • This time around, MIT researchers incorporated Rajca's nitroxide into a large nanoparticle known as a brush-arm star polymer. (rdworldonline.com)
  • Nanowerk News ) Showing another application of graphene for batteries , Rice University scientists have created a rechargeable lithium metal battery with three times the capacity of commercial lithium-ion batteries by resolving something that has long stumped researchers: the dendrite problem. (nanowerk.com)
Iron Nanoparticles Nano Fe Powder CAS 7439-89-6
Iron Nanoparticles Nano Fe Powder CAS 7439-89-6 (cookingmamacookoff.com)
Thermal conductance of metal-diamond interfaces at high pressure | Nature Communications
Thermal conductance of metal-diamond interfaces at high pressure | Nature Communications (nature.com)
CDC - Mining - The Fate of Metal (Fe) During Diesel Combustion: Morphology - NIOSH
CDC - Mining - The Fate of Metal (Fe) During Diesel Combustion: Morphology - NIOSH (cdc.gov)
Metal Nanoparticles - Market Study by Global Industry Analysts, Inc.
Metal Nanoparticles - Market Study by Global Industry Analysts, Inc. (strategyr.com)
Formation of PVP-Protected Metal Nanoparticles in DMF - Colloid Chemistry Group
Formation of PVP-Protected Metal Nanoparticles in DMF - Colloid Chemistry Group (coloides.webs.uvigo.es)
Nanoparticles Explored for Preventing Cell Damage | University of Central Florida News
Nanoparticles Explored for Preventing Cell Damage | University of Central Florida News (ucf.edu)
Materials | Free Full-Text | Recent Advances in Ethylene Gas Detection
Materials | Free Full-Text | Recent Advances in Ethylene Gas Detection (mdpi.com)
Super-tough carbon-nanotube fibres | Nature
Super-tough carbon-nanotube fibres | Nature (nature.com)
PDF] Solution Thermodynamics and Kinetics of Metal Complexation with a Hydroxypyridinone Chelator Designed for Thorium-227...
PDF] Solution Thermodynamics and Kinetics of Metal Complexation with a Hydroxypyridinone Chelator Designed for Thorium-227... (semanticscholar.org)
Paragenesis of Palladium-Cobalt Nanoparticle in Nitrogen-Rich Carbon Nanotubes as a Bifunctional Electrocatalyst for Hydrogen...
Paragenesis of Palladium-Cobalt Nanoparticle in Nitrogen-Rich Carbon Nanotubes as a Bifunctional Electrocatalyst for Hydrogen... (americanelements.com)
Dendrimer-cyclodextrin assemblies as stabilizers for gold and platinum nanoparticles - Journal of the Chemical Society, Perkin...
Dendrimer-cyclodextrin assemblies as stabilizers for gold and platinum nanoparticles - Journal of the Chemical Society, Perkin... (pubs.rsc.org)
Nanotechnology: Partnerships and Collaborations | NIOSH | CDC
Nanotechnology: Partnerships and Collaborations | NIOSH | CDC (cdc.gov)
Catalyst | The Asian Age
Catalyst | The Asian Age (asianage.com)
Inconel 718 Alloy Nanoparticles / Nanopowder | AMERICAN ELEMENTS ®
Inconel 718 Alloy Nanoparticles / Nanopowder | AMERICAN ELEMENTS ® (americanelements.com)
Stimuli-responsive microgels formed by hyperbranched poly(ether amine) decorated with platinum nanoparticles - Soft Matter (RSC...
Stimuli-responsive microgels formed by hyperbranched poly(ether amine) decorated with platinum nanoparticles - Soft Matter (RSC... (pubs.rsc.org)
(researchgate.net)
Conduction control in nanoparticles | SwissFEL Bernina | Paul Scherrer Institut (PSI)
Conduction control in nanoparticles | SwissFEL Bernina | Paul Scherrer Institut (PSI) (psi.ch)
Pharmaceuticals | Free Full-Text | Elucidating the Function of Penetratin and a Static Magnetic Field in Cellular Uptake of...
Pharmaceuticals | Free Full-Text | Elucidating the Function of Penetratin and a Static Magnetic Field in Cellular Uptake of... (mdpi.com)
Search
Search (repositories.lib.utexas.edu)
Micromachines | Special Issue : Flexible and Stretchable Electronics
Micromachines | Special Issue : Flexible and Stretchable Electronics (mdpi.com)
Liquid phase blending of metal-organic frameworks | Nature Communications
Liquid phase blending of metal-organic frameworks | Nature Communications (nature.com)
Emory Chan
Emory Chan (foundry.lbl.gov)
Ultrasmall AGuIX theranostic nanoparticles for vascular-targeted inter | IJN
Ultrasmall AGuIX theranostic nanoparticles for vascular-targeted inter | IJN (dovepress.com)
Nanoears - gold nanoparticles detect tiny acoustic vibrations
Nanoears - gold nanoparticles detect tiny acoustic vibrations (nanowerk.com)
In situ and Operando Nanocatalysis: Size, Shape and Chemical State Effects | OPERANDOCAT Project | Results | H2020 | CORDIS |...
In situ and Operando Nanocatalysis: Size, Shape and Chemical State Effects | OPERANDOCAT Project | Results | H2020 | CORDIS |... (cordis.europa.eu)
Finding the perfect filter
Finding the perfect filter (tudelft.nl)
Bobby Brooke Herrera, Ph.D. | Harvard Catalyst Profiles | Harvard Catalyst
Bobby Brooke Herrera, Ph.D. | Harvard Catalyst Profiles | Harvard Catalyst (connects.catalyst.harvard.edu)