Journal ArticleDOI
Preparation of polychrome silver nanoparticles in different solvents
TLDR
In this article, a soft solution approach under microwave irradiation from a solution of silver nitrate (AgNO3) in the presence of poly(N-vinyl-2-pyrrolidone) without any other reducing agent.Abstract:
Polychrome silver nanoparticles have been prepared by a soft solution approach under microwave irradiation from a solution of silver nitrate (AgNO3) in the presence of poly(N-vinyl-2-pyrrolidone) without any other reducing agent. Different morphologies of silver colloids with charming colors could be obtained using different solvents as the reaction medium. The structures of the silver colloids were determined by X-ray powder diffraction. UV-Vis spectroscopy was used to follow the reaction process and to characterize the optical properties of the resultant silver colloids. The influence of the solvent on the morphology of silver was investigated.read more
Citations
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Journal ArticleDOI
Silver nanoparticles: green synthesis and their antimicrobial activities.
TL;DR: This review presents an overview of silver nanoparticles (Ag NPs) preparation by green synthesis approaches that have advantages over conventional methods involving chemical agents associated with environmental toxicity.
Journal ArticleDOI
Silver Nanoparticles: Synthesis, Characterization, Properties, Applications, and Therapeutic Approaches
TL;DR: This review extensively discusses the multifunctional bio-applications of AgNPs; for example, as antibacterial, antifungal, antiviral,Anti-inflammatory, anti-angiogenic, and anti-cancer agents, and the mechanism of the anti- cancer activity of Ag NPs.
Journal ArticleDOI
Synthesis and Optical Properties of Silver Nanoparticles and Arrays
David D. Evanoff,George Chumanov +1 more
TL;DR: This Minireview systematically examines optical properties of silver nanoparticles as a function of size, and the development of a novel synthetic method for the size-controlled synthesis of chemically clean, highly crystallinesilver nanoparticles of narrow size distribution is compared.
Journal ArticleDOI
Microwave-assisted synthesis of colloidal inorganic nanocrystals.
TL;DR: Microwave-assisted methods that have been developed to synthesize colloidal inorganic nanocrystals are illustrated and the specific roles that microwave irradiation may play in the formation of these nanomaterials are critically evaluated.
Journal ArticleDOI
Microwave-Assisted Synthesis of Metallic Nanostructures in Solution
TL;DR: In this concept, advantageous application of microwave rapid heating for the one-pot synthesis of metallic nanostructures in solutions has been demonstrated by using some typical examples for the preparation of Ag, Au, Pt, and AuPd nanostructure.
References
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Journal ArticleDOI
Photoinduced conversion of silver nanospheres to nanoprisms.
TL;DR: This light-driven process results in a colloid with distinctive optical properties that directly relate to the nanoprism shape of the particles, which could be useful in developing multicolor diagnostic labels on the basis of nanoparticle composition and size but also of shape.
Journal ArticleDOI
Shape-Controlled Synthesis of Colloidal Platinum Nanoparticles
TL;DR: Tetrahedral, cubic, irregular-prismatic, icosahedral, and cubo-octahedral particle shapes were observed, whose distribution was dependent on the concentration ratio of the capping polymer material to the platinum cation.
Journal ArticleDOI
Simulation of the Optical Absorption Spectra of Gold Nanorods as a Function of Their Aspect Ratio and the Effect of the Medium Dielectric Constant
TL;DR: In this paper, a linear relationship was found between the absorption maximum of the longitudinal plasmon resonance and the mean aspect ratio as determined from TEM and it was shown that such a linear dependence is also predicted theoretically.
Journal ArticleDOI
Gold Nanorods: Electrochemical Synthesis and Optical Properties
TL;DR: In this paper, the authors showed that the dependence of λmax for longitudinal resonance on the mean aspect ratio shows a deviation from the classical electrostatic model prediction at mean aspect ratios around 4 ± 1.