Structures of nanoparticles. Medical search. Frequent questions

By organizing different types of nanoparticles together, it not only allows the utilization of the size and shape dependent properties of individual nanoparticles but also takes advantage of the new properties resulting from the interactions between neighbours. (universityofcalifornia.edu)
Alternatively, the effects of localization of various types of nanoparticles on the morphological, rheological, electrical, and mechanical properties of PLA-based blend nanocomposites are elaborately discussed. (itu.edu.tr)
Although the NIOSH recommended exposure limits (REL) for some types of nanoparticles are based on mass, particle count (number) may be a more significant concern because of their distinctive physical and chemical properties (e.g., increased surface area and reactivity). (cdc.gov)

Thus far, we have seen that through simple changes in synthesis parameters, we are able to optimize the FeNi nanoparticle material for methanol electrooxidation, nitrogen electroreduction to ammonia, and degradation of a textile dye water contaminant. (nist.gov)
Previous work on peptide‐stabilized Pd nanoparticles is now being extended to the PdAu system, where electrochemical performance appears to be influenced by the peptide sequence used during particle synthesis. (nist.gov)
Here, we report the single-crystal X-ray structure of a superlattice made in the high-yield synthesis 16 of Na 4 Ag 44 ( p -MBA) 30 nanoparticles, and find with large-scale quantum-mechanical simulations that its atomically precise structure and cohesion derive from hydrogen bonds between bundled 4 p -MBA ligands. (nature.com)
The aim of the work is to study the effect of silver doping on the structure and mechanical properties of porous titanium nickelide alloys obtained by self-propagating high-temperature synthesis (SHS). (rudmet.ru)
The physical and chemical properties of magnetic nanoparticles largely depend on the synthesis method and chemical structure. (wikipedia.org)
Recently, work has explored the synthesis and exchange bias effect in these Co core CoO shell nanoparticles with a gold outer shell. (wikipedia.org)
We present a new synthesis approach to explore the interplay between atomic and mesoscopic structures and the electrical conductivity of metal hybrid structures. (hpmpc.org)
To obtain the required properties for specific applications, the morphology and size of SnO 2 nanoparticles must be controlled during synthesis [ 11 - 13 ]. (hindawi.com)
26 ] reported the synthesis of Cu-doped SnO 2 nanoparticles by microwave irradiation method for the precise determination of folic acid. (hindawi.com)
The main challenge in the addition of dopants is the synthesis of nanoparticles without secondary phases. (hindawi.com)
2020. Synthesis of CdS Nanoparticles by Chemical Co-precipitation Method and its Comparative Analysis of Particle Size via Structural and OpticalCharacterization. (bilpubgroup.com)
Chemical synthesis of CdS nanoparticles and their optical and dielectric studies. (bilpubgroup.com)
Ishihara, Synthesis of intermetallic NiAl compound nanoparticles by pulsed wire discharge of twisted Ni and Al wires, Intermetallics, № 23, с. (dntb.gov.ua)
Lerner, Synthesis of Al-Al2O3 and Al-AlN nanoparticles composites via electric explosion of wires, Russ. (dntb.gov.ua)
Lee, Effect of ambient air pressure on synthesis of copper and copper oxide nanoparticles by wire explosion process, Curr. (dntb.gov.ua)

Here, we systematically investigate the atomic structure of tungsten oxide nanoparticles as a function of the nanoparticle size and observe drastic changes when the particles are smaller than 5 nm, where the particles are amorphous. (lu.se)
The electronic states of "wurtzite" CdS nanoparticles and CdSe/CdS nanosystems with up to 80 pairs of Cd-Se or CdS atoms were calculated.The results for CdS particles were compared with the results obtained earlier for CdSe particles of the same size and with published calculations of other authors. (bilpubgroup.com)
For example, the current NIOSH certification test for filtration performance (to determine whether a respirator is at least 95, 99, or 99.97% efficient) uses a broad range of particles, including a significant number of nanoparticles, but only measures particles larger than ~100 nm in size penetrating through the filter. (cdc.gov)
In particular, concerns had been raised that due to their small size, engineered nanoparticles would penetrate through respirators at higher rates than larger particles (so called "thermal rebound" effects). (cdc.gov)
In a subsequent study, respirators were donned on a manikin and various sized controlled leaks were created in the respirator face seal to assess whether nanoparticles preferentially leak compared to larger particles ( Rengasamy, AOH 2011 ). (cdc.gov)
The terms ultrafine particle and nanoparticle are often used interchange- and do not necessarily represent the view of the National Institute for ably, although nanoparticle generally refers to engineered particles. (cdc.gov)
Studies have indicated that low solubility nanoparticles are more toxic than larger particles on a mass for mass basis. (cdc.gov)
By breathing in a low concentration of nanoparticles and measuring how many particles get stuck, we can calculate distances in the lungs, which is a measure of the size of the alveoli. (lu.se)
Additionally, nanoparticles are engineered particles less than 100 nm. (medscape.com)
Few occupational exposure limits exist specifically for nanomaterials and certain nanoparticles may be more hazardous than larger particles of the same substance. (medscape.com)

Amendola, What controls the composition and the structure of nanomaterials generated by laser ablation in liquid solution, Phys. (dntb.gov.ua)
Article: Nanoparticles and nanowires: synchrotron spectroscopy studies Journal: International Journal of Nanotechnology (IJNT) 2008 Vol.5 No.9/10/11/12 pp.1194 - 1246 Abstract: This paper reviews the research in nanomaterials conducted in our laboratory in the last decade using conventional and synchrotron radiation techniques. (inderscience.com)
We show that the tunability, brightness, polarisation and time structure of synchrotron radiation are providing unprecedented capabilities for nanomaterials analysis. (inderscience.com)
Synchrotron studies of prototype systems such as gold nanoparticles, 1-D nanowires of group IV materials, C, Si and Ge as well as nanodiamond, and compound semiconductors, ZnS, CdS, ZnO and related materials are used to illustrate the power and unique capabilities of synchrotron spectroscopy in the characterisation of local structure, electronic structure and optical properties of nanomaterials. (inderscience.com)

Nanosized (5 to 10 nm) amorphous and crystalline nanocondensates, i.e., metallic α-phase of Zn-Cu alloy in face-centered cubic structure and (Zn,H)-codoped cuprite (Cu 2 O) with high-pressure-favored close-packed sublattice, were formed by pulsed laser ablation on bulk Cu 65 Zn 35 in water and characterized by X-ray/electron diffractions and optical spectroscopy. (springer.com)

Electron diffraction had been used to study the structure of molecules in the gas phase and amorphous thin films, but initially, scientists didn't think that electrons would be appropriate for obtaining reliable PDFs from critical nanocrystalline materials because, unlike x-ray photons, electrons scatter strongly, distorting the diffraction pattern. (materialstoday.com)
To investigate fundamental mechanism on the interactions between molecules and plasomnic nanoparticles which make confined electromagnetic field upon light illumination, we fabricated hybrid thin films consisting of gold or silver nanoparticles and photofunctional organic material such as photochromic compounds and fluorescent dyes. (nii.ac.jp)
The surface of a maghemite or magnetite magnetic nanoparticle is relatively inert and does not usually allow strong covalent bonds with functionalization molecules. (wikipedia.org)
Nie, S.M. & Emery, S.R. Probing single molecules and single nanoparticles by surface-enhanced Raman scattering. (nature.com)
They can be generated with energies and wavelengths appropriate for probing a range of biological structures, from small molecules such as lipids or peptides, to larger molecules and molecular assemblies including viruses. (ill.eu)
One of their most important advantages is that they interact quite strongly with hydrogen nuclei, so can pick out all the hydrogen atoms in a structure, including those in water molecules. (ill.eu)
Using computer simulations, researchers have shown that bipyramid nanoparticles can form clathrate structures with gaps for guest molecules. (materialstoday.com)
For small molecules, the molecular weight is known by the chemical structure. (lu.se)

The metallic core of magnetic nanoparticles may be passivated by gentle oxidation, surfactants, polymers and precious metals. (wikipedia.org)
The sensitivity of the final performance of the PLA-based blend nanocomposites is explored with regard to the different localizations of different nanoparticles towards specific applications such as packaging and functional and sensory polymers. (itu.edu.tr)
But for large systems e.g polymers, DNA, proteins or nanoparticles, the exact chemical structure is not known, so the molecular weight cannot be calculated. (lu.se)
We use self-assembly, driven by interactions between nanoscopic species (micelles, nanoparticles, polymers) in solution and at interfaces to form materials with organized structures from nm to cm. (lu.se)

abstract = "The stability of metastable flow-induced precursor (FIPs) in the polymer melts in presence of nanoparticles, viz. (edu.sa)

At low concentrations, nanoparticles. (lu.se)
At low concentrations, nanoparticles with a diameter of 2-4 nm form and adopt an amorphous structure that locally resembles the structure of polyoxometalate clusters. (lu.se)
Tin dioxide (SnO 2 ) nanoparticles doped with varying concentrations of copper were synthesized and characterized using various techniques. (hindawi.com)
Different phenomena of the polymer-protected nanoparticles at various silver ion concentrations are observed and are explained in terms of a mechanism of structure-dependent stabilization. (ncku.edu.tw)
This single-molecule counting method can be widely used to measure molecular weight of fluorescence objects, such as macromolecules, biomolecules and nanoparticles, at extremely low concentrations. (lu.se)

They have shown how a powerful method called atomic pair distribution function (PDF) analysis - which normally requires synchrotron x-rays or neutrons to discern the atomic arrangements in nanoparticles - can be carried out using a transmission electron microscope (TEM) - an instrument found in many chemistry and materials science laboratories. (materialstoday.com)
The ability to collect PDF data using an electron microscope places this powerful nanocrystallographic analysis method into the hands of scientists who need it most - the people synthesizing novel nanoparticles and nanostructures," said Simon Billinge, a researcher at both Brookhaven and Columbia University's School of Engineering and Applied Science and a long-term user of the NSLS, who led the research. (materialstoday.com)
Nanowerk News ) They may deal in gold, atomic staples and electron volts rather than cement, support beams and kilowatt-hours, but chemists have drafted new nanoscale blueprints for low-energy structures capable of housing pharmaceuticals and oxygen atoms. (nanowerk.com)
The researchers resorted to the computational approach because of the difficulty of capturing the structure via X-ray crystallography or single-particle transmission electron microscopy, two of the most common imaging methods at the atomic scale. (nanowerk.com)
The structure of the samples was studied using X-ray diffraction analysis, scanning and transmission electron microscopy. (rudmet.ru)
Individual Pt-Ru nanoparticles (NPs) supported on multiwall carbon nanotubes (MWCNTs) synthesized by microemulsion method were characterized by nano beam diffraction (NBD) and high resolution imaging in transmission electron microscopy (TEM). (canada.ca)
In particular, the energy transfer from the warm electron gas to the nanoparticle appears to be so efficient that the particle is heated extremely quickly. (mpg.de)
Using single-particle X-ray imaging (SPI) and transient absorption spectroscopy (TA), the researchers determined the size and electron temperature of the nanoparticles after optical excitation as a function of time. (mpg.de)
The layered CdSe/CdS systems with twolayer CdS coverings can be interpreted in terms of combinations of two semiconductors with different energy band gaps (2.6 eV and 3.3 eV), while analogous systems with single-layer CdS coverings do not demonstrate a two-gap electron structure. (bilpubgroup.com)
We have developed a structure refinement method based on genetic algorithm optimization to create structural models of individual nanostructures based on quantitative scanning transmission electron microscopy (STEM) data [1]. (emc-proceedings.com)
The architectural effects in particle on the nanoparticle size, size distribution, and agglomeration behavior are determined from the UV-vis plasmon absorption band and transmission electron microscopic (TEM) analyses. (ncku.edu.tw)

We develop nanoparticle materials for specific electrochemical or chemical reactions through variation of bimetallic composition, morphological structure, extent of oxide/oxyhydroxide phases, and ligand concentration and molecular structure. (nist.gov)
2020. Optical, structural and morphological study of CdS nanoparticles: role of sulfur source. (bilpubgroup.com)

Nanotechnology is the manipulation of matter on a near-atomic scale to produce new structures, materials and devices. (cdc.gov)
Nanotechnology refers to engineered structures, devices, and systems. (cdc.gov)

In this seminar, I will discuss some of our on‐going work on two different bimetallic systems: phosphonate‐stabilized FeNi nanoparticles and peptide‐stabilized PdAu nanoparticles. (nist.gov)
Kurlyandskaya, Structure, magnetic and microwave properties of FeNi nanoparticles obtained by electric explosion of wire, J. Alloy. (dntb.gov.ua)

In the current study, scientists working with co-author Mercouri Kanatzidis at Northwestern University and ANL synthesized nanocrystalline thin films and gold and sodium chloride (NaCl) nanoparticles and used a TEM at Northwestern to acquire PDFs of these samples. (materialstoday.com)

The scope of the report includes an overview of the global market for nanoparticles in biotechnology, drug development and formulation, drug delivery systems, and diagnostics as well as analyses of global market trends, using 2022 as the base year and forecasting market sizes for 2023 through 2028 with compound annual growth rate (CAGR) projections. (giiresearch.com)

Aim: The aim of this study was to evaluate and compare the effectiveness of 1% and 5% sodium hypochlorite (NaOCl), 2% chlorexidine (CHX), 1% silver nanoparticles (Np Ag) suspension, and 26% zinc oxide nanoparticles (Np ZnO) suspension against E. faecalis biofilm. (bvsalud.org)
Nanoparticles like zinc oxide are widely used in sunscreens, paints, textiles, and other products and can lead to accidental occupational inhalational exposure. (medscape.com)

We have invented a shell-isolated nanoparticle-enhanced Raman spectroscopy (SHINERS) technique, using Au-core silica-shell nanoparticles (Au@SiO 2 NPs), which makes SERS universally applicable to surfaces with any composition and any morphology. (nature.com)

Because of these concerns, NIOSH recommends limiting worker exposures to engineered nanoparticles through standard industrial hygiene practices, including respiratory protection (when needed). (cdc.gov)

When going to the nanoscale, size-induced structural changes in atomic structure often occur, however these are rarely well-understood. (lu.se)
Since inhaled nanoparticles are predominantly deposited in the acini, their deposition can be used to derive structural properties of the region. (lu.se)
In theory, structural enlargements in the distal lung imply that less inhaled nanoparticles deposit there. (lu.se)
Intheory, structural enlargements in the distal lung imply that less inhaled nanoparticles deposit there. (lu.se)
The stable face-centered-cubic (fcc) Au undergoes a structural phase transition to a mixture of primitive orthorhombic and cubic phases as the carbon phase acquires a highly ordered onion-like carbon (OLC) structure which encapsulates the Au nanoparticles, thereby exerting an additional pressure. (hpmpc.org)
This study focuses on how hygroscopic properties, deliquesence relative humidity (DRH) and hygroscopic growth factor (GF) of nanoparticles vary with their size and structural properties. (cdc.gov)

The tungsten oxide nanoparticles are synthesized by thermal decomposition of ammonium metatungstate hydrate in oleylamine and by varying the ammonium metatungstate hydrate concentration, the nanoparticle size, shape and structure can be controlled. (lu.se)
When the concentration is increased the nanoparticles become elongated and form nanocrystalline rods up to 50 nm in length. (lu.se)
The bandgap energy of doped and undoped SnO 2 nanoparticles was determined using UV-visible diffuse reflectance spectra, and it was found to decrease as Cu 2+ ion concentration increased. (hindawi.com)
On the contrary, in the presence of zirconia nanoparticles, where the chain-particle interactions between PE and the nanoparticles are weak the initially observed streak tends to disappear with time, where the time required is strongly dependent on the concentration of the nanoparticles in the polymer matrix. (edu.sa)

Hierarchically structured monolithic silicalite-1 consisting of crystallized nanoparticles and i. (rwth-aachen.de)
The Edler group research focuses on understanding the formation of functional hierarchically structured materials in order to apply that understanding to make new materials. (lu.se)

We aim to control and optimize nanoparticle formation through the use of two specific ligand families: phosphonate chelators and synthetic, metal‐specific peptides. (nist.gov)
Although some experiments 19-23 have previously observed dendritic structures of metals, no detailed microscopic mechanisms have been proposed to explain the self-assembly procedure of dendritic structure formation, and Ostwald ripening 24 combined with oriented attachment 25 was assumed to be able to explain the growth mechanism. (rsc.org)
Our proposed mechanism provides a deep insight into the formation of nanoscale metal dendritic structures via self-assembly and is helpful for understanding crystal growth dynamics with possible applications in the engineering of nanoscale crystals with new architectures. (rsc.org)
We indicated that the improved catalytic activity of extensively purified NPs in octyne hydrogenation reaction can be explained by the formation of CoPt 3 /Pt core/shell structures. (osti.gov)
The OLC structure allows the formation of quenchable Au nanoparticle phases with the primitive close packing and Au-C hybrids with new mesoscopic structures. (hpmpc.org)
Under pressure, we observe the formation of a hybrid material composed of a poorly conducting matrix made of amorphous carbon and conducting OLC-encapsulated Au nanoparticles. (hpmpc.org)
Simulation of a CdSe/CdS quantum dot shows that the single-layer CdS shell demonstrates a tendency for the formation of the electronic structure with two energy gaps: approximately of 2.5 eV and 3.0 eV. (bilpubgroup.com)
Wong, Effect of ambient gas species on the formation of Cu nanoparticles in wire explosion process, Curr. (dntb.gov.ua)
Further dwelling of such nanocondensates in water caused progressive formation of a rice-like assembly of (Zn,H)-codoped tenorite (CuO) nanoparticles with (001), (100), and {111} preferred orientations, (111) tilt boundary, yellowish color, and minimum bandgap narrowing down to ca. 2.7 eV for potential photocatalytic applications. (springer.com)
Kuo, PL & Chen, WF 2003, ' Formation of silver nanoparticles under structured amino groups in pseudo-dendritic poly(allylamine) derivatives ', Journal of Physical Chemistry B , vol. 107, no. 41, pp. 11267-11272. (ncku.edu.tw)
Thus, compared to the neat polymer, the presence of zirconia nanoparticles destabilizes the shish formation. (edu.sa)
We use time-resolved grazing incidence X-ray & neutron reflectivity, liquid diffraction and small angle scattering to study formation mechanisms & final structures. (lu.se)

Corma, A. "Embedding catalytic nanoparticles inside mesoporous structures with controlled porosity: Au@TiO2" Journal of Materials Chemistry A 1, 45, pp. 14170 - 14176. (irec.cat)
The results allowed us to gain some insight into the relation of the NPs' structure and composition with their catalytic performance, and revealed the presence of components not detectable by bulk methods. (canada.ca)

A research team from Hamburg and Berlin reports in Nano Letters experimental observations that cannot be explained by established models and describes a new theoretical model that explains the dynamics of excited gold nanoparticles observed in experiments. (mpg.de)
For their study, researchers from the Departments of Physics and Chemistry at Universität Hamburg, the Max Planck Institute for the Structure and Dynamics of Matter (MPSD), DESY and TU Berlin joined forces. (mpg.de)
Led by Holger Lange, Jochen Küpper und Kartik Ayyer, who all conduct research in the Cluster of Excellence 'CUI: Advanced Imaging of Matter', and Andreas Knorr from Berlin, the team combined theory and experiment for an accurate description of the dynamics of excited gold nanoparticles. (mpg.de)

Led by UNL's Xiao Cheng Zeng and former visiting professor Yi Gao, new research has revealed four atomic arrangements of a gold nanoparticle cluster. (nanowerk.com)
A cluster of silver nanoparticles. (teachengineering.org)

The researchers reported their findings in the April 24 edition of Science Advances ( 'Unraveling structures of protection ligands on gold nanoparticle Au 68 (SH) 32 ' ), an online journal from the American Association for the Advancement of Science. (nanowerk.com)

Furthermore, inorganic and organic nanoparticles could be assembled into complex patterns to form superfine crystal nanocircuits 27 for use in electronic circuits, or to manufacture extremely thin crystal tips for applications in high resolution microscopies 28 and other nanoscale machineries. (rsc.org)
At present research areas in the group include self-assembly in deep eutectic solvents, the impact of solvent structures on solvation and nanoparticle growth, gels and emulsions prepared using partially oxidised cellulose nanofibrils and their interactions with other biopolymers, novel bio-derived surfactants, mesoporous inorganic materials and polymer-stabilised lipid nanodiscs for membrane protein supports. (lu.se)

b) TEM images of low and high magnification of silica coated y-Fe2O3 nanoparticle-capped MPS spheres synthesized in the presence of sodium dodecyl sulfate. (universityofcalifornia.edu)

Magnetic nanoparticles are a class of nanoparticle that can be manipulated using magnetic fields. (wikipedia.org)
Magnetic nanoparticle clusters that are composed of a number of individual magnetic nanoparticles are known as magnetic nanobeads with a diameter of 50-200 nanometers. (wikipedia.org)
Magnetic nanoparticle clusters are a basis for their further magnetic assembly into magnetic nanochains. (wikipedia.org)
Ferrite nanoparticles or iron oxide nanoparticles (iron oxides in crystal structure of maghemite or magnetite) are the most explored magnetic nanoparticles up to date. (wikipedia.org)
The magnetic moment of ferrite nanoparticles can be greatly increased by controlled clustering of a number of individual superparamagnetic nanoparticles into superparamagnetic nanoparticle clusters, namely magnetic nanobeads. (wikipedia.org)
Just like non-magnetic oxide nanoparticles, the surface of ferrite nanoparticles is often modified by surfactants, silica, silicones or phosphoric acid derivatives to increase their stability in solution. (wikipedia.org)
However, the reactivity of the magnetic nanoparticles can be improved by coating a layer of silica onto their surface. (wikipedia.org)
Nanoparticles with a magnetic core consisting either of elementary Iron or Cobalt with a nonreactive shell made of graphene have been synthesized recently. (wikipedia.org)
The advantages compared to ferrite or elemental nanoparticles are: Higher magnetization Higher stability in acidic and basic solution as well as organic solvents Chemistry on the graphene surface via methods already known for carbon nanotubes Several methods exist for preparing magnetic nanoparticle. (wikipedia.org)
Scientists used magnetic fields to assemble nanoparticles into tiny, brush-like robotic structures that precisely remove biofilms, a network of germs and other sticky substances, from the surfaces of teeth. (medscape.com)

The properties of functional materials are intrinsically linked to their atomic structure. (lu.se)
4. Baigonakova G. A., Marchenko E. S., Chekalkin T. L., Kang J., Weiss S., Obrosov A. Influence of Silver Addition on Structure, Martensite Transformations and Mechanical Properties of TiNiAg Alloy Wires for Biomedical Application. (rudmet.ru)
Bulk characterization methods miss many properties and structures present in the sample due to low volume fraction and due to overlap of reflections. (canada.ca)
2014. The Optical and Electrical Properties of CdSe Nanoparticles. (bilpubgroup.com)
Spectroscopic and electronic structure properties of CdSe nanocrystals: spheres and cubes. (bilpubgroup.com)
In this field, nanoparticles have notable importance due to their unique properties and characteristics, which are useful in different applications, including tissue engineering, biomarkers, and drug delivery systems. (mdpi.com)
These nanoparticles have unique properties that are used in variety of modern applications such as in water treatment, medicine, and electronics. (teachengineering.org)

In this paper, we report on experiments in which silver crystals are grown in a non-equilibrium process with nanoparticles , rather than individual atoms, as basic building blocks. (rsc.org)
We found that extensive surface purification results in the substantial leaching of the Co atoms from the chemically synthesized CoPt 3 NPs transforming them into CoPt 3 /Pt core/shell structures with an unexpectedly thick (~0.5 nm) Pt shell. (osti.gov)
In this case, the optimization was allowed to change the number of atoms in the structure as well as their position. (emc-proceedings.com)
and (e) a histogram of the distances between atoms in the starting structure and the refined structure. (emc-proceedings.com)
The structure and interactions of matter at the bulk scale are determined by electrical forces within and between atoms. (teachengineering.org)

The energy-dispersive X-ray spectroscopy analyses confirmed that the synthesized nanoparticles were nearly stoichiometrically composed of the expected elements copper, oxygen, and tin. (hindawi.com)
Here, PLA on Cu-Zn alloy rather than on pure Cu in water was used to fabricate (Zn,H)-codoped copper oxide nanoparticles and to study the phase behavior as well as optical property change of the colloidal solution upon dwelling in water. (springer.com)

The findings could also optimize the use of gold nanoparticles in catalyzing the oxidation process that transforms dangerous carbon monoxide emissions into the less noxious carbon dioxide, he said. (nanowerk.com)

The results conclusively demonstrate the influence of chain-particle interactions, between PE and the nanoparticles, on the stretch of the long chains. (edu.sa)
Understanding interactions between surfaces, nanoparticles and other species is central to our control over structure and thus function. (lu.se)

Our experiments and simulations, however, indicate that metal crystals are grown in a multistep self-assembly process with metal nanoparticles as basic building blocks. (rsc.org)
article{osti_1409368, title = {Interfacial Self-Assembly of Polyelectrolyte-Capped Gold Nanoparticles}, author = {Zhang, Honghu and Nayak, Srikanth and Wang, Wenjie and Mallapragada, Surya and Vaknin, David}, abstractNote = {Here, we report on pH- and salt-responsive assembly of nanoparticles capped with polyelectrolytes at vapor-liquid interfaces. (osti.gov)

As a first test, we have refined the structure of a ~6000 atom colloidal Au nanoparticle, as shown in Figure 2. (emc-proceedings.com)

Noor, Thermal-Chemical Characteristics of Al-Cu alloy nanoparticles, J. Phys. (dntb.gov.ua)
In this activity, students take on the role of chemical engineers by building a valuable compound: silver nanoparticles. (teachengineering.org)

Comparing the TEM images and NBD to simulations provided insight into particle composition, structure and morphology in three dimensions. (canada.ca)
These heterostructures are prepared by seed-mediated routes, where the structure, composition, and morphology of the CdSe nanocrystals used as a seed play key roles in directing the growth of the second semiconducting domain. (acs.org)

Biomimetic Nucleation of Metal-Organic Frameworks on Silk Fibroin Nanoparticles for Designing Core-Shell-Structured pH-Responsive Anticancer Drug Carriers. (bvsalud.org)

The study thus reveals a size-dependent amorphous structure when going to the nanoscale and provides further knowledge on how metal oxide crystal structures change at extreme length scales. (lu.se)
Title : A study on effects of size and structure on hygroscopicity of nanoparticles using a tandem differential mobility analyzer and TEM Personal Author(s) : Park, Kihong;Kim, Jae-Seok;Miller, Arthur L. (cdc.gov)
The different mechanisms of the stabilizing effect of nanoparticles are reviewed with respect to their final localization as well as their size/shape characteristics. (itu.edu.tr)

Crystal growth is at the very heart of various research fields ranging from surface physics, crystallography , materials science, and biological structure determination to semiconductor technology and computer chip manufacturing. (rsc.org)

By analyzing polymer nanoparticles with X-ray scattering, researchers have discovered that crystal structures are not always regularly arranged. (materialstoday.com)

The AiDA measurement method - based on the inhalation of nanoparticles - is easy to use and can complement other lung examinations. (lu.se)

In an oxygen environment, Co nanoparticles form an anti-ferromagnetic CoO layer on the surface of the Co nanoparticle. (wikipedia.org)
3) the dendritic structures are filled up to form solid crystals in a couple of hours. (rsc.org)
Specifically, SF was assembled into nanoparticles (SF-NPs), which were then loaded with an antitumor drug , doxorubicin (DOX), to form DSF-NPs. (bvsalud.org)

They complete the reaction, allow the water to evaporate, and observe the silver nanoparticles they created in plastic dishes using a stereo microscope. (teachengineering.org)

Photocatalysis, sensors, solar cells: Plasmons promise a variety of applications if the processes triggered by optical excitation in the nanoparticles can be controlled. (mpg.de)

We also work to develop structure‐function relationships by correlating performance metrics to high energy x‐ray characterization and microscopy data. (nist.gov)

Increasing the pressure results in a one dimensional (1-D) chain-like structure with the primitive cubic Au nanoparticles contained in an amorphous carbon matrix. (hpmpc.org)

We combined synchrotron small angle X-ray scattering, X-ray fluorescence and extended X-ray absorption fine structure spectroscopy to probe the structure of chemically synthesized CoPt 3 nanoparticles (NPs) after ligand removal via the commonly accepted solvent/nonsolvent approach. (osti.gov)

Ligand exchange processes either cause a decrease in efficiencies, or lead to aggregation and precipitation of the nanoparticles or require additional surface treatment steps. (universityofcalifornia.edu)
c) TEM images of MPS spheres capped with various nanoparticles and then surface coated with silica in the presence of SDS surfactant (1) MPS@Au@SiO2, (2) MPS@TiO2 nanorods @SiO2 and (3) MPS@ZrO2@SiO2. (universityofcalifornia.edu)
The high surface area of the electrospun mats makes them suitable for applications in fields using nanoparticles. (mdpi.com)
Due to the SF-mediated organization of ZIF-8 precursors such as zinc ions , the DSF-NPs further templated the nucleation of ZIF-8 onto their surface to generate core-shell-structured NPs (termed DSF@Z-NPs) with ZIF-8 as a shell and DSF-NP as a core. (bvsalud.org)

The advantage of combining the energy and goodness-of-fit to experiments over optimization on just one or the other is the ability to refine structures that are not at a global energy minimum (like most nanoparticles) from experimental data that does not completely constrain the three-dimensional structure (like a STEM image in one orientation). (emc-proceedings.com)

Allows for the preparation of various multifunctional and multilayer structures. (universityofcalifornia.edu)
Multifunctional, inexpensive, and reusable nanoparticle-printed biochip for cell manipulation and diagnosis. (cdc.gov)

Crystal structures of molecular gold nanocrystal arrays. (nature.com)
The structure of the molecule's gold core was previously detailed by the Stanford team. (nanowerk.com)
Optical excitation of gold nanoparticles directly sets the particle into an oscillatory motion in which the particle periodically expands and contracts. (mpg.de)
Two types of alkylthiol-terminated poly(acrylic acid) (PAAs, varying in length) are synthesized and used to functionalize gold nanoparticles (AuNPs) to mimic similar assembly effects of single-stranded DNA-capped AuNPs using synthetic polyelectrolytes. (osti.gov)

The team calculates that one of the arrangements may represent the most stable possible structure in a molecule with its composition. (nanowerk.com)

The U.S. Department of Energy's Brookhaven National Laboratory is one of them - home to the National Synchrotron Light Source (NSLS) and future NSLS-II, where scientists are using very bright, intense x-ray beams to explore the small-scale structure of new materials for energy applications, medicine, and more. (materialstoday.com)
Materials of primary interests are metal nanoparticles and semiconductor nanowires and naonribbons. (inderscience.com)
2021. "Cu Patterning Using Femtosecond Laser Reductive Sintering of CuO Nanoparticles under Inert Gas Injection" Materials 14, no. 12: 3285. (mdpi.com)
Engineered nanoparticles are materials with at least one dimension between 1 and 100 nanometers. (cdc.gov)

This article critically reviews the influence of different nanoparticle localization on the final structure-property relationships of polylactide (PLA)-based blend nanocomposites. (itu.edu.tr)

Scientists then use computational programs to convert the PDFs into 3-D models of atomic structure. (materialstoday.com)
Researchers have discovered that a candidate solid electrolyte material known as argyrodite has a hybrid crystalline-liquid atomic structure. (materialstoday.com)

An increase in the volume fraction of the B19' martensitic phase, intermetallic compounds based on the Ti 2 Ni and a decrease in the volume fraction of austenite with the B2 structure with an increase in the silver content were established. (rudmet.ru)
The syntheses of silver nanoparticles stabilized by poly(allylamine) (PAA) and by polyethyleneiminated poly(allylamine) (PAA(EI) n (n = 2, 5.8)) are reported. (ncku.edu.tw)
Students iterate on their initial process and test to see if they can improve the manufacturing process of silver nanoparticles. (teachengineering.org)

single-walled carbon nanotube (SWCNT) and zirconia nanoparticles, is studied at, 142 °C, close to the equilibrium melting point of unconstrained extended chain crystals of linear polyethylene (PE). (edu.sa)

Anatomy3

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Analytical, Diagnostic and Therapeutic Techniques and Equipment47

Phenomena and Processes24

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Technology, Industry, Agriculture37

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Concentrations5

Electron11

Morphological2

Nanotechnology2

FeNi2

NaCl1

20221

Zinc oxide2

Silica shell1

Exposures1

Structural6

Concentration4

Hierarchically structured2

Formation12

Catalytic2

Dynamics3

Cluster2

Ligands1

Inorganic2

Sodium1

Magnetic10

Properties7

Atoms5

Copper2

Optimize1

Interactions2

Self Assembly2

Colloidal1

Chemical2

Morphology2

Organic1

Size3

Determination1

Polymer1

Inhalation1

Form3

Observe1

Plasmons1

Characterization1

Amorphous1

Solvent1

Surface4

Optimization1

Multifunctional2

Gold4

Composition1

Materials4

Article1

Atomic structure2

Silver3

Carbon1