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SilverMetal NanoparticlesParticle SizeNanoparticlesSilver NitrateMagnetic Resonance SpectroscopySilver CompoundsSilver StainingGoldNanotechnologySilver SulfadiazineSpectroscopy, Near-InfraredNanostructures
AgNPsGold nanoparticlesFTIREnergy dispersive XMicroscopyFourierActivity of Silver NanoparticlesDiffractionBiosynthesis of silverMetal nanoparticlesMethods of synthesizing silverAbsorptionAssisting the formation of nanoparticlesStableToxicityRamanSphericalConcentrationPlasmonicLeaf extractNitrateCharacterization of silverColloidal nanoparticlesMagnetic nanoparticlesBimetallic nanoparticlesBiologicalSurface plasmonBiogenicAntimicrobial activityFace-centeGreenParticle sizeAgNPAntioxidantPARTICLESLipidPhytochemicalsCompoundsAntibacterial effectNanoscaleReactionAgNOOxideSynthesizeSignificant antibacterialManipulation of particle structureDispersionSitu methodMethodFunctionalExtractsPropertiesDiametersConventionalSERS
AgNPs43
  • In this research silver nanoparticles (AgNPs) were synthesized from silver nitrate (AgNO 3 ) aqueous solution through eco-friendly plant leaf broth of Ocimum sanctum as reactant as well as capping agent and stabilizer. (hindawi.com)
  • The formation of AgNPs was monitored by ultraviolet-visible spectrometer (UV-vis) and Fourier transform infrared (FTIR) spectroscopy. (hindawi.com)
  • The FTIR results indicated that the leaf broths containing the carboxyl, hydroxyl, and amine groups are mainly involved in fabrication of silver AgNPs and proteins, which have amine groups responsible for stabilizing AgNPs in the solution. (hindawi.com)
  • Silver nanoparticles (AgNPs) have attracted significant interest due to their wide variety of applications and their unique optical, electrical, and thermal properties [ 2 - 4 ]. (hindawi.com)
  • In the synthesis of AgNPs, numerous chemical, biological, and physical methods have been developed. (hindawi.com)
  • The objective of this study was to find out a cost-effective and eco-friendly technique for biological synthesis of AgNPs using Ocimum sanctum leaf broth. (hindawi.com)
  • In the recent research, silver nanoparticles (AgNPs) were formulated by the Panax ginseng aqueous extract. (degruyter.com)
  • The synthesized AgNPs' characterization was analyzed using UV-Vis spectrophotometry, energy dispersive X-ray spectroscopy, scanning electron microscopy, fourier transformed infrared spectroscopy, transmission electron microscopy, and elemental mapping. (degruyter.com)
  • The successful synthesis of AgNPs was evident with TEM images. (degruyter.com)
  • Green synthesis of AgNPs is more intriguing domain due to possessing environmentally and economically friendly properties. (nepjol.info)
  • The biosynthesized AgNPs was confirmed using techniques UV-Vis spectroscopy, FTIR and XRD. (nepjol.info)
  • Thus, prepared AgNPs demonstrated surface plasmon peak at wavelength nearly 430 nm in UV-Vis spectroscopy. (nepjol.info)
  • FTIR spectroscopy date explained the role of functional groups in forming stable AgNPs and XRD pattern revealed that the silver nanoparticles were face-centered, cubic and crystalline in nature. (nepjol.info)
  • The green synthesis of AgNPs working as an antibacterial agent was assessed by zone of inhibition against four readily available bacterial strain Staphylococcus aureus, Escherichia coli, Klebsiella pneumonia and Pseudomonas aeruginosa and DPPH method is used to calculate antioxidant activity. (nepjol.info)
  • The silver NPs (AgNPs), gold NPs (AuNPs), and bimetallic NPs (AgAuNPs) were synthesized from root extract and characterized using ultraviolet-visible spectra, X-ray diffraction (XRD), energy-dispersive spectrometry (EDS), transmission electron microscopy (TEM), and dynamic light scattering (DLS). (dovepress.com)
  • Bioreduction of silver nitrate (AgNO 3 ) and chloroauric acid (HAuCl 4 ) were confirmed at absorbances of 440 nm (AgNPs), 570 nm (AuNPs), and 540 nm (AgAuNPs), respectively. (dovepress.com)
  • This is the first report on rapid and efficient synthesis of AgNPs, AuNPs and AgAuNPs from P. zeylanica and their effect on quantitative inhibition and disruption of bacterial biofilms. (dovepress.com)
  • Even though there are many metal NPs were investigated [8], silver nanoparticles (AgNPs) are considered to be the best due to the fact that the disadvantages of AgNPs are negligible as compared to its advantages [9]. (nanomedicine-rj.com)
  • Green synthesis of silver nanoparticles (AgNPs) was performed using extracts from Ornithogalum narbonense L. (ONL) as a cost-effective and eco-friendly approach. (yyu.edu.tr)
  • This work compared the effect of hot aqueous extraction and blending on phytochemical content, AgNPs synthesis, antibacterial and antioxidant properties of ginger and turmeric. (ijpsr.com)
  • The biosynthesized AgNPs were characterized using UV-Visible spectroscopy, FTIR, and SEM. (ijpsr.com)
  • The UV-Visible spectrum confirmed the synthesis of AgNPs using CBLE (AgNPs-CBLE), with the highest absorbance peak observed at 412 nm. (ijpsr.com)
  • Silver nanoparticles (AgNPs) have been demonstrated to restrain bacterial growth while maintaining the minimal risk in development of bacterial resistance and human cell toxicity that conventional silver compounds exhibit. (preprints.org)
  • UV-Vis spectroscopy, Dynamic Light Scattering, Transmission Electron Microscopy and zeta potential were applied for the characterization of AgNPs. (preprints.org)
  • The biological synthesis of silver nanoparticles (AgNPs) was conducted using date palm pit aqueous extract. (unboundmedicine.com)
  • The first visible sign of the synthesis of AgNPs was the change in colour of reaction mixtures from yellowish to reddish brown. (unboundmedicine.com)
  • The resulting synthesised AgNPs were characterised using UV-visible spectroscopy, X-ray diffraction (XRD), transmission electron microscopy (TEM) and dynamic light scattering (DLS). (unboundmedicine.com)
  • Fourier transform infrared spectroscopy indicated the role of different possible functional groups (carboxyl, amine, aromatic and hydroxyl) in the formation of AgNPs. (unboundmedicine.com)
  • AU - Khatami,Mehrdad, AU - Pourseyedi,Shahram, PY - 2015/7/31/entrez PY - 2015/8/1/pubmed PY - 2015/11/7/medline SP - 184 EP - 90 JF - IET nanobiotechnology JO - IET Nanobiotechnol VL - 9 IS - 4 N2 - The biological synthesis of silver nanoparticles (AgNPs) was conducted using date palm pit aqueous extract. (unboundmedicine.com)
  • Hypothesis Silver nanoparticles (AgNPs) have emerged as a powerful weapon against antibiotic resistant microorganisms. (edu.au)
  • However, most conventional AgNPs syntheses require the use of hazardous chemicals and generate toxic organic waste. (edu.au)
  • We hypothesized that, due to the presence of oxalic acid, cacao extract is capable of reducing silver nitrate (AgNO 3 ) to produce AgNPs. (edu.au)
  • Findings UV-visible spectroscopy (UV-vis), dynamic light scattering (DLS) and transmission electron microscopy (TEM) characterization demonstrated that the synthesized AgNPs were spherical particles ranging in size from 35 to 42.5 nm. (edu.au)
  • The environmentally friendly extracellular biosynthetic technique was applied to produce silver nanoparticles (AgNps). (ugm.ac.id)
  • The colloidal synthesis of AgNPs was then monitored by the same method. (ugm.ac.id)
  • Numerous investigations have shown that the biogenic Silver Nanoparticles (AgNPs) exhibited their therapeutic role in cancer as anticancer agents[ 6 ]. (ijpsonline.com)
  • This paper reports an in situ method for the synthesis and immobilization of small silver nanoparticles (AgNPs) at room temperature on natural eggshell membrane (ESM). (journalcra.com)
  • Many chemical and physical techniques are available for the synthesis of antimicrobial silver nanoparticle (AgNPs), but the green synthesis is the most emerging method of synthesis. (journalcra.com)
  • Visual color change, UV spectroscopy, scanning electron microscopy and transmission electron microscopy unambiguously identifed the presence of AgNPs on ESM. (journalcra.com)
  • In this study, procyanidin dimers and Leucosidea sericea total extract (LSTE) were employed in the synthesis of silver nanoparticles (AgNPs) and characterized by ultraviolet-visible (UV-Visible) spectroscopy, high-resolution transmission electron microscopy (HRTEM), selected area electron diffraction (SAED), X-ray diffraction (XRD), and dynamic light scattering (DLS) techniques. (uwc.ac.za)
  • Objective: to clarify the benefits related to the use of silver nanoparticles (AgNPs) in the prevention of dental caries in children, we compared the antibacterial properties of silver nanoparticles, chlorhexidine, and silver diamine fluoride (SDF) to Streptococcus mutans. (bvsalud.org)
  • Some studies indicate that the antibacterial mechanism of the silver nanoparticles (AgNPs) relays on their ability to penetrate the bacterial cell wall, causing direct and indirect lipidic peroxidation, which damages the cell membrane, disrupts the DNA replication, and repairs and inhibits the respiratory protein 4,5 . (bvsalud.org)
  • The size reduction of the AgNPs involves an increase in the contact surface, which is an important condition for the antimicrobial effects of silver and could prevent black staining in teeth, as occurs after application of silver diamine fluoride (SDF). (bvsalud.org)
Gold nanoparticles6
FTIR7
  • The green synthesized Ag NPs were characterized by diverse techniques such as powder X-ray diffraction (XRD), UV-visible, Fourier transform-infrared spectroscopy (FTIR) and Transmission electron microscopy (TEM) coupled with X-ray energy dispersive spectroscopy (EDS) techniques . (omicsonline.org)
  • The FTIR analysis revealed the involvement of phenolic compounds in the bioreduction of Ag + as well as the capping/stabilization of the biosynthesized nanoparticles. (ijpsr.com)
  • Synthesized nanoparticles were characterized by using UV-Vis absorption spectroscopy, FTIR, and SEM analysis. (wjpr.net)
  • FTIR, nanoparticle, UV-Vis absorption spectroscopy. (wjpr.net)
  • The morphology, composition, and magnetic properties of the resulting MnFe2O4@SiO2-Ag core-shell nanocatalyst were characterized by scanning electron microscope (SEM), transmission electron microscopy (TEM), thermogravimetric analysis (TGA), X-ray diffraction (XRD), vibrating sample magnetometer (VSM), and attenuated total reflectance-Fourier transform infrared spectroscopy (ATR-FTIR). (tubitak.gov.tr)
  • These biosynthesized silver nanoparticles were characterized using UV-VIS spectroscopy followed by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD) and Scanning Electron Microscopy (SEM). (worldresearchersassociations.com)
  • The sizes, morphology, thermal stability and confirmation of successful conjugation was determined using X-ray diffraction (XRD), transmission electron microscopy (TEM), thermogravimetric analysis (TGA) and Fourier transform infrared spectroscopy (FTIR), respectively. (ru.ac.za)
Energy dispersive X5
  • Energy-dispersive X-ray spectroscopy (EDX) of the recaptured silver clusters confirms the expected elemental distribution. (rsc.org)
  • Its behavior in dental tissues was evaluated through an energy dispersive X-ray spectroscopy (EDS) analysis, using a scanning electron microscope (SEM). (intechopen.com)
  • Fourier-transform infrared (FT-IR), X-ray diffraction (XRD), energy dispersive X-ray spectroscopy (EDS), selected area electron diffraction (SAED) results confirmed the crystalline nature while transmission electron microscopy (TEM) analysis revealed the shape of polydispersed nanoparticles were predominantly spherical. (ajgreenchem.com)
  • For characterization, UV-visible spectroscopy, transmission electron microscopy, X-ray diffraction, energy-dispersive X-ray spectroscopy and field emission scanning electron microscopy were used. (ac.ir)
  • The synthesised nanoparticles were characterised by using UV-visible spectroscopy, energy dispersive X-ray spectroscopy, field emission scanning electron microscopy and X-ray diffraction. (jvas.in)
Microscopy9
  • Overall, the dichlorofluorescein silver nanoparticles may be constructive for improving the percentage of seed germination at 25% of its concentration and may also be useful for fluorescent measurement using the confocal microscopy technique. (intechopen.com)
  • The presence of the ligand coating in solution is corroborated by Fourier transform infrared spectroscopy (FT-IR) and the particle size distribution is analyzed by transmission electron microscopy (TEM). (rsc.org)
  • UV-visible spectroscopy, transmission electron microscopy and X-ray diffraction analytical techniques were used to characterize the synthesized nanoparticles. (springeropen.com)
  • Transmission electron microscopy showed the formation of nanoparticles in the range of 10-50 nm (silver), and 10-50 nm (gold). (scienceopen.com)
  • Moreover, transmission electron microscopy (TEM) was employed to characterize the evolution of morphologies of silver nanoparticles at different irradiation times to demonstrate the effect of RGO. (edu.au)
  • This Perspective discusses how different single particle imaging and spectroscopy techniques together with electron microscopy can be applied to reveal the relationships between the plasmonic response and the morphology of individual nanoparticles as well as their assemblies. (acs.org)
  • The biosynthesised nanoparticles were characterised by UV-vis spectroscopy, scanning electron microscopy, EDX, and XRD. (springeropen.com)
  • Scanning electron microscopy (SEM) analysis showed silver nanoparticles was pure and polydispersed and the size were ranging from 10-40 nm. (wjpr.net)
  • The shape, size and dimensions of the Co3O4 magnetic nanoparticles were investigated by scanning electron microscopy (SEM), and diameter of nanoparticles lies in the range between Abstract 2 80-100 nm. (gov.pk)
Fourier2
  • A possible mechanism involved in the reduction and stabilization of nanoparticles has been investigated using Fourier transform infrared spectroscopy and Raman spectroscopy. (springeropen.com)
  • Fourier-transform infrared spectroscopy confirmed bioreduction, while EDS and XRD patterns confirmed purity and the crystalline nature of the NPs, respectively. (dovepress.com)
Activity of Silver Nanoparticles1
Diffraction4
  • X-ray powder diffraction analysis confirmed the face-centered cubic silver crystalline structure. (yyu.edu.tr)
  • Initially the synthesized silver nanoparticles were characterized and confirmed by UV-Vis spectroscopy, X-ray diffraction (XRD) and SEM. (primescholars.com)
  • Scanning electron microscope (SEM), X-rays powder diffraction (XRD) and Raman spectroscopic characterization tools have been utilized to look through the morphology, compositional purity, crystallinity and emission characteristics of the fabricated magnetic nanoparticles. (gov.pk)
  • The structural quality of the Co3O4 nanoparticles is confirmed from X-ray powder diffraction (XRD) measurements while the Raman spectroscopy has been used to understand the chemical bonding between the different atoms. (gov.pk)
Biosynthesis of silver4
Metal nanoparticles11
  • Due to their unique physicochemical properties, metal nanoparticles with a dimension of approximately 1-100 nm have received considerable attention in last few decades [ 1 ]. (hindawi.com)
  • Over the recent years, biosynthesis method has been widely studied for stable metal nanoparticles synthesis with controlled size and shape and considered as a "green" approach [ 5 - 8 ]. (hindawi.com)
  • Therefore there has been a search for inexpensive, reliable, safe, and "green" approach to the synthesis of stable metal nanoparticles with controlled size and shape. (hindawi.com)
  • As a result, some novel methods have recently developed using (i) biologically derived reducing agents such as chitosan, glucose, and polysaccharides, (ii) microbes such as bacteria and fungus, and (iii) a variety of plant (seed and leaf as well as tuber) extracts for the synthesis of metal nanoparticles. (hindawi.com)
  • Metal nanoparticles have proven to be the excellent catalysts for inorganic synthesis, pollution treatments and fuel cell, due to their quantum effect, high surface-tovolume ratio and surface energy [ 14 - 16 ]. (omicsonline.org)
  • Silver nanoparticles form an important part of metal nanoparticles, with wider range of applications in diverse areas of science. (nanomedicine-rj.com)
  • Plant mediated green synthesized silver nanoparticles are usually preferred due to its advantages over other metal nanoparticles viz. (nanomedicine-rj.com)
  • The plasmonic properties of noble-metal nanoparticles are extremely sensitive to their size and shape. (acs.org)
  • Metal nanoparticles able to bind diverse molecules to their surface was due to their relative surface area and size, making them ideal transport vehicles capable of penetrating cell and tissue barriers[ 2 ]. (ijpsonline.com)
  • Metallophthalocyanines linked to metal nanoparticles and folic acid for use in photodynamic therapy of cancer and photoinactivation of bacterial microorganisms. (ru.ac.za)
  • The Ag particles can also induce the deposition of Au, Pd and Pt on TiO 2 surface via the galvanic replacement reaction scheme, which opens the possibility to synthesize other supported noble metal nanoparticles. (edu.hk)
Methods of synthesizing silver1
Absorption4
  • Furthermore, the catalytic activity of synthesized Ag NPs in the reduction of 4-nitrophenol (4-NP) was studied by UVvis absorption spectroscopy . (omicsonline.org)
  • The synthesized Ag NPs have a good catalytic activity on the reduction of 4-nitrophenol (4-NP) by Papaya Peel extract which is confirmed by the decrease in absorbance maximum values of 4-nitrophenol (4-NP) with respect to time using UV-vis absorption spectroscopy. (omicsonline.org)
  • The synthesized material was characterized using an X-ray diffractometer, Scanning Electron Microscope, and UV-visible absorption spectroscopy. (mis-asia.com)
  • X-ray absorption fine structure (XAFS) spectroscopy and synchrotron-based total X-ray scattering and pair distribution function (PDF) analysis were used to determine the local structure around Ag and evaluate changes in crystal lattice parameters and structure as a function of NP size. (duke.edu)
Assisting the formation of nanoparticles1
  • Different phytochemicals with various functional groups assisting the formation of nanoparticles during green synthesis are also summarized here. (nanomedicine-rj.com)
Stable5
  • The main objective of this study was to investigate whether dichlorofluorescein (DCF) is adequate for the formulation of stable dichlorofluorescein-induced silver nanoparticles under the boiling method to analyze their effects on the seed germination of Mung seeds (Vigna radiata). (intechopen.com)
  • Matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry identifies perfluoralkyl coated silver nanoparticles as the most stable species among the materials studied here. (rsc.org)
  • Nowadays green synthesis of nanoparticles is accepted widely because of its simple, non-toxic, rapid, stable nature and also less expensive [18]. (nanomedicine-rj.com)
  • Hybrid lipid/nanoparticle conjugates provide a biologically inspired means of designing stable agents for biomedical imaging, drug delivery, targeted therapy, and biosensing [ 1 ]. (biomedcentral.com)
  • We conclude that cacao-based synthesis is a reproducible and sustainable method for the generation of stable antimicrobial silver nanoparticles with low cytotoxicity to human cells. (edu.au)
Toxicity4
  • Biologically synthesized silver nanoparticles, are nontoxic for humans (in low concentrations), and safe inorganic antibacterial agents that have been shown to exhibit a strong toxicity to a wide range of microorganisms since ancient times (Shanthi et al. (springeropen.com)
  • Lipid-based dispersion of nanoparticles provides a biologically inspired route to designing therapeutic agents and a means of reducing nanoparticle toxicity. (biomedcentral.com)
  • These limits provide no distinction for the different toxicity of TiO2 nanoparticles compared to larger ones. (cdc.gov)
  • Here we develop and apply the principles of their evolution from systems principally for evaluating mechanism dosimetry in vitro and outline an approach for simulation of of toxicity to high-throughput systems for rapid and cost-effective nanoparticle particokinetics in cell culture systems. (cdc.gov)
Raman6
  • Brosseau's research focus is on Electrochemical Surface-Enhanced Raman Spectroscopy. (wikipedia.org)
  • This project used surface-enhanced Raman spectroscopy (SERS) to analyze colorants in historical textiles and paintings. (wikipedia.org)
  • A green synthesis of silver nanoparticles improved their surface-enhanced Raman spectroscopy. (wikipedia.org)
  • Electrochemical surface-enhanced Raman spectroscopy (EC-SERS) was useful for analyzing non-heme protein adsorption at electrified interfaces. (wikipedia.org)
  • X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy demonstrated that RGO was generated in the photoinduced process. (edu.au)
  • Journal of Raman Spectroscopy. (unine.ch)
Spherical5
  • By optimizing the reaction conditions, we could achieve nearly monodispersed and size controlled spherical nanoparticles of around 5.7 ± 0.2 nm. (springeropen.com)
  • The nanoparticles obtained from Papaya Peel extract were spherical shape with an average diameter of 3-5 nm. (omicsonline.org)
  • The present study demonstrates an unprecedented green process for the production of spherical-shaped Au and Ag nanoparticles synthesized and stabilized using a bacterium, Brevibacterium casei. (scienceopen.com)
  • According to the shape, there are spherical ATO nanoparticles and Simultaneously enhancing device performance and longevity and balancing the requirements on cost, scalability, and simplification of processing is the goal of interface engineering of organic solar cells (OSCs). (mis-asia.com)
  • The silver nanoparticles obtained had absorbance maxima at 398 nm, were spherical in shape, had an average particle size of 11.32 nm, polydispersity index 0.44, the zeta potential of -23.75.69 mv and were crystalline. (ijpsonline.com)
Concentration10
  • The impact of dichlorofluorescein silver nanoparticles (DCF-SNPs) on the germination percentage of V. radiata has shown that, the 25% concentration of DCF-SNPs is excellent for the growth of Mung seeds (V. radiata). (intechopen.com)
  • The influence of concentration of gum and reaction time on the synthesis of nanoparticles was studied. (springeropen.com)
  • An efficient reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) in the presence of Ag NPs and NaBH4 was observed and was found to depend upon the nanoparticle size or the peel extract concentration used for synthesis. (omicsonline.org)
  • Some other disadvantages of these methods include energy consumption, slow synthesis and requirement of high concentration [22-24]. (nanomedicine-rj.com)
  • The aim of this study was to investigate the use of chlorhexidine (CHX) hexametaphosphate (HMP) nanoparticles (NPs) with a total CHX concentration equivalent to 5 mM as a coating for dental implants. (springer.com)
  • The antimicrobial activity was found to be directly related to the nanoparticles concentration. (springeropen.com)
  • Although significant differences have been achieved in the nanoparticles' size by varying the plant extract concentration during synthesis, the antibacterial effect was almost similar. (preprints.org)
  • Formation of bilayer-embedded nanoparticles was confirmed by differential scanning calorimetry and fluorescence anisotropy, where increasing nanoparticle concentration suppressed the lipid pretransition temperature, reduced the melting temperature, and disrupted gel phase bilayers. (biomedcentral.com)
  • In this study, silver nanoparticles were synthesized using leaf extract of Leonotis nepetifolia (L). Gas chromatography-mass spectrometry data showed a total of 13 phytochemical constituents identified from ethanolic leaf extract of Leonotis nepetifolia (L). The effect of physicochemical factors such as the reaction time, temperature, concentration of Silver nitrate, concentration of leaf extract and pH in the synthesis of silver nanoparticles. (ijpsonline.com)
  • Treatment of pancreatic and ovarian with different concentrations of silver nanoparticles inhibited the cell viability with half maximal inhibitory concentration values of 25.4 μg/ml and 23.9 μg/ml. (ijpsonline.com)
Plasmonic1
  • Controlled Overgrowth of Five-Fold Concave Nanoparticles into Plasmonic Nanostars and Their Single-Particle Scattering Properties. (acs.org)
Leaf extract2
  • 15 ] and others [ 16 - 18 ] synthesized silver nanoparticles using Ocimum sanctum leaf extract which showed significant antibacterial activity against E. coli and Staphylococcus aureus . (hindawi.com)
  • For biosynthesis, the optimal conditions were 1 mM silver nitrate, 0.1 ml of leaf extract at 80° for 90 min. (ijpsonline.com)
Nitrate2
Characterization of silver1
Colloidal nanoparticles1
  • Nanoscale structures and materials such as nano?bers, colloidal nanoparticles, nanorods, nanowires, nanotubes and nanozymes have been investigated in many areas such as food safety, biosensing, molecular imaging, delivery of drugs, tissue engineering and anticancer treatment[ 3 - 5 ]. (ijpsonline.com)
Magnetic nanoparticles5
  • The study was extended by conjugating amino functionalized magnetic nanoparticles (Fe₃O₄) to indium octacarboxy phthalocyanine to study the photophysical behaviour of the conjugate as a potential bi-functional anti-cancer agent (hyperthermia and photodynamic therapy applications). (ru.ac.za)
  • A three-in-one multifunctional nanocomposite comprising of the quantum dots, magnetic nanoparticles and indium octacarboxy phthalocyanine was developed with the aim of developing a multifunctional composite that is able detect, monitor and treat cancer. (ru.ac.za)
  • The present research work shows the fabrication of potentiometric urea Biosensor based on magnetic nanoparticles iron oxide (Fe3O4) and cobalt oxide (Co3O4) through simple, economical and reproducible approach. (gov.pk)
  • Besides magnetic nanoparticles, non magnetic nanoparticles silver (Ag) was also exploited for the fabrication of urea biosensor. (gov.pk)
  • Magnetic nanoparticles of Co3O4 showed better sensitivity response of 45mV per decade in comparison to that of Fe3O4 and Ag nanoparticles sensitivity response of 42 mV per decade. (gov.pk)
Bimetallic nanoparticles2
  • TEM and SEM images clearly show that the bimetallic nanoparticles are of core-shell structure with some pinholes on the surface. (unboundmedicine.com)
  • AgcoreAushell bimetallic nanoparticles, as a new SERS active and biocompatible substrate, will be expected to improve the detection sensitivity of immunoassay. (unboundmedicine.com)
Biological9
  • In 2007, Brosseau completed a PhD at the University of Guelph under the supervision of Prof. Jacek Lipkowski on a project which involved using electrochemistry and infrared spectroscopy to probe the interaction of cholera toxin with a model biological membrane supported on an electrode surface. (wikipedia.org)
  • With development of nanotechnology, the biological synthesis process deals with the synthesis, characterization, and manipulation of materials and further development at nanoscale which is the most cost-effective and eco-friendly and rapid synthesis process as compared to physical and chemical process. (hindawi.com)
  • As the silver nanoparticles are encapsulated with functional group rich gum, they can be easily integrated for various biological applications. (springeropen.com)
  • Silver nanoparticles (NPs) have shown remarkable potential for numerous applications in chemical, electronic , medical, and biological fields due to their distinctive properties, when compared to their bulk counterparts [ 1 - 3 ]. (omicsonline.org)
  • Nanoparticles (NPs) result in superior chemical reactivity, biological activity, and catalytic behaviour than their own larger particles [2, 6]. (nanomedicine-rj.com)
  • 2010 ). A vast array of biological resources is available for this synthesis process, including: plants and plant products (Mittal et al. (springeropen.com)
  • Among all biological resources, fungi present higher tolerance and metal bioaccumulation abilities, which are advantageous characteristics for the production of nanoparticles (Mandal et al. (springeropen.com)
  • Although several factors acting together may determine the biological synthesis reaction, the identification of the most active biomolecules as reducing and stabilizing agents is essential in choosing the best technical parameters to be employed in the biosynthesis (Duschak 2016 ). (springeropen.com)
  • Biological synthesis reflects as an eco-friendly, nontoxic and easy method of nanoparticle preparation. (primescholars.com)
Surface plasmon1
  • Single particle spectroscopy techniques have therefore become the standard for understanding how the energy of the localized surface plasmon of individual nanoparticles scales with small changes in the morphology. (acs.org)
Biogenic3
Antimicrobial activity1
  • Conclusion: silver nanoparticles proved to have antimicrobial activity against S. mutans, therefore, they may be an effective agent in the prevention of dental caries. (bvsalud.org)
Face-cente3
  • The peaks in XRD pattern are in good agreement with that of face-centered-cubic (FCC) form of metallic silver. (hindawi.com)
  • These clearly reveal that the structure of the synthesized silver nanoparticles was face centered cubic. (omicsonline.org)
  • Based on the modified Kelvin equation, the surface tension of Ag NPs was found to be 1 J/m2, which is expected for bulk fcc (face centered cubic) silver. (duke.edu)
Green12
  • Preliminary dichlorofluoresceine nanoparticles (DCF-SNPs) synthesis evidence by noticing the solution color transformed from a light green color to a dark brown color. (intechopen.com)
  • The Brosseau research lab investigates the spectra observed when nanoparticles interact with light, to develop green molecular sensors. (wikipedia.org)
  • A facile and green method is described for the synthesis of Silver (Ag) nanoparticles (NPs) from the extract of Papaya Peel as capping and reducing agent. (omicsonline.org)
  • An environmentally benign solvent and eco-friendly capping and reducing agents are the three fundamental elements for a completely green synthesis technique. (omicsonline.org)
  • Over the past few decades, the green synthesis of nanoparticles has gained importance for their therapeutic efficacy and eco-friendly nature. (jascoinc.com)
  • Integrating green chemistry principles into multidisciplinary nanoscience research has paved the way for developing environmentally benign and sustainable methods for synthesizing gold and silver nanoparticles. (jascoinc.com)
  • The industries preferably employ green synthesized nanoparticles for manufacturing its products [2, 7]. (nanomedicine-rj.com)
  • Green synthesis, characterization and an. (yyu.edu.tr)
  • The approach of green synthesis seems to be cost efficient, eco-friendly and easy alternative to conventional methods of silver nanoparticles synthesis. (wjpr.net)
  • Reductant free green synthesis of magnetically recyclable MnFe2O4@SiO2" by ALİ SEROL ERTÜRK, GÖKHAN ELMACI et al. (tubitak.gov.tr)
  • The present paper describes in situ green immobilization of silver nanoparticles on MnFe2O4@SiO2-Ag nanospheres using Epilobium parviflorum (EP) without using any other toxic chemicals and reducing or stabilizing agents. (tubitak.gov.tr)
  • This paper reports the green synthesis, chemical characterization and antioxidant, cytotoxic, antibacterial and antifungal properties of silver nanoparticles obtained using aqueous extract of A. saralicum leaves. (ac.ir)
Particle size2
  • Small particle size and good dispersion of silver are the two key parameters determining its performances. (edu.hk)
  • Potent antibacterial activity against Escherichia coli was also observed in the Ag/TiO 2 nanoparticles, resulting from the small particle size and the high dispersion of silver over the TiO 2 support. (edu.hk)
AgNP4
  • Aqueous solutions of chloroaurate ions for Au and Ag(+) ions for silver were treated with B. casei biomass for the formation of Au nanoparticles (AuNP) and Ag nanoparticles (AgNP). (scienceopen.com)
  • 1983 ), and both have been described as being capable of AgNP synthesis (Banu et al. (springeropen.com)
  • It has been considered that AgNP mode of action depends on monovalent ionic silver (Ag + ), which is released inside the microbial cells and inhibits microbial growth through suppression of respiratory enzymes and electron transport components (Li et al. (springeropen.com)
  • In this work, the formation of aqueous lipid/nanoparticle assemblies (LNAs) consisting of hydrophobic silver-decanethiol particles (5.7 ± 1.8 nm) embedded within 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) bilayers is demonstrated as a function of the DPPC/Ag nanoparticle (AgNP) ratio. (biomedcentral.com)
Antioxidant3
  • These results indicate that the sample preparation method influenced the phytochemical levels, synthesis of silver nanoparticles, antibacterial and antioxidant capacities of the ginger and turmeric combination. (ijpsr.com)
  • 2,2-Diphenyl-1-picrylhydrazyl was used in experiments to assess the antioxidant potential of the silver nanoparticles, which revealed an impressive prevention in comparison with butylated hydroxytoluene. (ac.ir)
  • Because the silver nanoparticles obtained using aqueous extract of A. saralicum leaves have antioxidant, non-cytotoxic, antifungal and antibacterial potentials, they can be used as a medical supplement or drug. (ac.ir)
PARTICLES5
  • In lipid vesicles, nanoparticle encapsulation can be achieved by trapping particles within the aqueous vesicle core or within the hydrophobic lipid bilayer. (biomedcentral.com)
  • XRD confirmed that the silver particles formed in our experiments were in the form of nanocrystals. (unboundmedicine.com)
  • Titanium dioxide (TiO2) particles, including nanoparticles with diameters smaller than 100 nm, are used extensively in consumer products. (cdc.gov)
  • Although fine particles (diameters between 0.1-3 m) of TiO2 are known to be biocompatible, some of the research conducted on TiO2 nanoparticles (diameters smaller than 100 nm) has suggested potential toxicological impacts because they possess physicochemical properties different from the bulk. (cdc.gov)
  • The definition of dose for nanoparticles in an in vitro system is particles in vitro. (cdc.gov)
Lipid4
  • Little is currently known on how the presence of nanoparticles influences lipid vesicle stability and bilayer phase behavior. (biomedcentral.com)
  • These results suggest that lipid bilayers can distort to accommodate large hydrophobic nanoparticles, relative to the thickness of the bilayer, and may provide insight into nanoparticle/biomembrane interactions and the design of multifunctional liposomal carriers. (biomedcentral.com)
  • To embed nanoparticles within lipid bilayers, the nanoparticle must be small enough to fit within a DPPC bilayer and it must present a hydrophobic surface. (biomedcentral.com)
  • This work demonstrates the formation of hybrid lipid/nanoparticle assemblies (LNAs) containing hydrophobic decanethiol-modified silver nanoparticles (Ag-decanethiol) and the effect of embedded nanoparticles on bilayer structure. (biomedcentral.com)
Phytochemicals3
  • They contain many important phytochemicals, which can reduce, stabilize and act as capping agents in the nanoparticle synthesis. (nanomedicine-rj.com)
  • The result of the phytochemical screening revealed the presence of phytochemicals required for synthesizing silver nanoparticles, such as flavonoids and phenols in CBLE but absented in CHAE. (ijpsr.com)
  • Following this, silver nanoparticles were biosynthesised from the extract, where the phytochemicals acted as reducing and capping agents for the nanoparticles formed. (jvas.in)
Compounds2
  • The rise of bacterial and fungal resistance against antimicrobials has promoted research of bactericidal nanomaterials, especially in the well-known area of silver ions and silver-based compounds, including silver nanoparticles (Jiravova et al. (springeropen.com)
  • The synthesis of nanoparticles from plant extract is gaining importance now-a-days owing to the effectual activity elicited by them when compared to activity of plant compounds alone. (jvas.in)
Antibacterial effect1
  • The porpoise of the study was to evaluate the antibacterial effect of silver nanoparticles (Ag-NPs) versus chlorhexidine (CHX) against Streptococcus mutans and Lactobacillus casei. (intechopen.com)
Nanoscale1
Reaction3
  • The photoinduced growth reaction of silver nanoparticles was accelerated by reduced graphene oxide (RGO) produced from graphene oxide (GO) during the light irradiation process in aqueous solution. (edu.au)
  • The reaction mixture turned to brownish gray color after 5 hrs of incubation and exhibits an absorbance peak around 450 nm characteristic of Ag nanoparticle. (wjpr.net)
  • The reaction temperature, time and reactant molarity were varied to optimize the synthesis yield. (edu.au)
AgNO1
  • The synthesis of AgAuNPs, which completed within 90 minutes with 0.7 mM AgNO 3 and HAuCl 4 , was found to be the fastest. (dovepress.com)
Oxide6
  • Accordingly, a significant switch of conduction property from an n-type character to a p-type character is ob In the present investigation, we report the synthesis of antimony tin oxide nanoparticles via the chemical precipitation method. (mis-asia.com)
  • What is ATO?Antimony Doped Tin Oxide (ATO), Purple Tungsten Oxide Nanopowder, Silver Paste Conductive Film Ito Film, Monoclinic vanadium dioxide, Metal Oxide Nanoparticles. (mis-asia.com)
  • Hongwu Nano has a professional R&D team composed of experienced nanotechnology researchers in the industry and senior engineers, doctoral students, professors, and other groups of new product d Regarding the unique electrical and conductive properties, antimony tin oxide (ATO) nanoparticles have been used extensively as transparent electrodes and thin films, support material for electrocatalysis, energy storage devices, gas sensors, and photo electrocatalysis. (mis-asia.com)
  • The antimony-doped tin oxide nanoparticles have also found broad applications in solar cells and heat-reflectiv Considering the predominant applications of antimony tin oxide nanoparticles, numerous methods and techniques have been introduced to obtain them. (mis-asia.com)
  • On the contrary, synthesizing antimony tin oxide nanoparticles is still challenging, combining all t Antimony-doped tin oxide (ATO) nanoparticles have been proven to exhibit special optical properties and excellent electrical conductivity to be used as thin film electrodes. (mis-asia.com)
  • Introducing antimony to the tin oxide structure can significantly increase the electron conductivity making it an exce What is ATO?Antimony-doped tin oxide (ATO) nanoparticles have been proven to exhibit special optical properties and excellent electrical conductivity to be used as thin film electrodes. (mis-asia.com)
Synthesize2
Significant antibacterial1
Manipulation of particle structure2
  • Nanotechnology is a branch of science and technology which concerns with the development of process for the design, synthesis, and manipulation of particle structure, different shape, size, and controlled disparity. (hindawi.com)
  • It involves the synthesis and manipulation of particle structure with a dimension of less than 100 nanometers in diameter [1]. (nanomedicine-rj.com)
Dispersion1
  • A novel one-pot sol-gel synthesis method was invented in the present study to produce TiO 2 -supported Ag nanoparticles with excellent Ag size and dispersion control while maintaining a high Ag loading. (edu.hk)
Situ method1
  • An in situ method has been developed to fabricate gold nanoparticle (Au NP) films on different substrates, regardless of whether they are hydrophilic or hydrophobic surfaces, including glass, 96-well polystyrene plates, and polydimethylsiloxane (PDMS). (nature.com)
Method8
  • In bottom-up method nanoparticles are formed by the self-assembly of miniaturized atomic components [19, 20]. (nanomedicine-rj.com)
  • Antimicrobial nanoparticles (NPs) offer a method for imparting antimicrobial properties to implant surfaces. (springer.com)
  • Three different reducing agents were used for the synthesis and characterization of Ag-NPs: sodium borohydride (NaBH4), a chemical method, and Heterotheca inuloides (Hi) and Camellia sinensis (Cs), two eco-friendly methods. (intechopen.com)
  • Solubility of Ag NPs was not affected by the synthesis method and coating as much as by their size. (duke.edu)
  • The synthesized nanoparticles when used for determination of antibacterial activity, by Microtitre Broth Dilution method exhibited remarkable activity against Pseudomonas aeruginosa, Klebsiella pneumoniae and Escherichia coli. (primescholars.com)
  • The silver-containing extracts (Ag-extract) were then used to detect the presence of Hg 2+ , Cu 2+ , Pb 2+ , and Mn 2+ in aqueous solutions by the colorimetric method using UV-visible spectroscopy. (ugm.ac.id)
  • Co-precipitation method has been adopted for synthesis of nanoparticles of Fe3O4 and Co3O4. (gov.pk)
  • In this current study, a microwave-assisted acid digestion method has been specifically designed to improve the recovery of titanium in TiO2 nanoparticles for quantitative analysis using ICP-OES. (cdc.gov)
Functional2
  • The resulting vesicles are analogous to liposomal drug delivery systems with an added functional nanoparticle component. (biomedcentral.com)
  • This thesis presents on the synthesis and characterization of novel asymmetric and symmetrical metallophthalocyanines (MPcs) substituted with carboxylic acid functional groups and centrally metallated with zinc and indium. (ru.ac.za)
Extracts2
  • In addition, the proteins or polysaccharides or secondary metabolites found in leaf extracts can reduce the Ag + ions to Ag 0 state and form silver nanoparticles [ 1 ]. (hindawi.com)
  • Here the silver nanoparticles were synthesized using Ocimum sanctum leaf extracts which act as both reducing and capping agent. (journalcra.com)
Properties3
Diameters1
  • We measured the solubility of organic-coated silver nanoparticles (Ag NPs) having particle diameters ranging from 5 to 80 nm that were synthesized using various methods, and with different organic polymer coatings including poly(vinylpyrrolidone) and gum arabic. (duke.edu)
Conventional2
  • Although numerous methods are envisaged for silver nanoparticle synthesis, the most conventional ones are physical and chemical methods [21]. (nanomedicine-rj.com)
  • Assembling of nanoparticles and to study the effect of rate of bioreduction of Ag + ions this conventional approach appears to be very cost effective. (ajgreenchem.com)
SERS1