Chemical Synthesis, Characterization of Ag, Au Nanoparticles and Formulation of Bimetallic Nanostructure onto Tri-block Copolymer Surfaces

Batain F,De Freitas Proença Pl,Carvalho Lb,De Moura Crescencio Km,Amaral Va,De Souza Ab,Depaula Dy,Chaud Mv,De Oliveira Jm,Baldo Da,Ribeiro Alves Tf

doi:10.15744/2348-9812.9.203

Batain F, De Freitas Proença Pl + Show 9 more

Open Access

https://doi.org/10.15744/2348-9812.9.203

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Abstract

Silver and gold nanoparticles (AgNPs and AuNPs) and bimetallic nanoparticles Poloxamer-P407 solvated (Ag/Au-P407) target various fields due to particle morphology, small size and unique physical and chemical properties.

Highlights

As scientific knowledge about the unique properties of metallic and bimetallic nanoparticles (NPs) advances, the interest in the development of these nanomaterials receives attention from researchers from the most different areas of interest, and a new field of studies, with strong economic potential and a broad horizon ahead, is being created
The surface plasmon resonance (SPR) observed in metallic nanoparticles exhibits a colour intensity dependent on size, whose increases of intensity presupposes a reduction in the size of the nanoparticles [42]
The effect of temperature on optical properties of colloidal nanoparticles can be evaluated by maximum absorbance wavelengths between 420 – 425nm, corresponding to the SPR peaks that rise strongly localized in the nanoscale [35]

Summary

Introduction

As scientific knowledge about the unique properties of metallic and bimetallic nanoparticles (NPs) advances, the interest in the development of these nanomaterials receives attention from researchers from the most different areas of interest, and a new field of studies, with strong economic potential and a broad horizon ahead, is being created. The AgNPs and AuNPs are the most studied metallic nanoparticles in the health and environment area. The current studies have focused on their biological effects and applications such as antimicrobial agents, nanomedical imaging, biosensor, anticancer agents, and clean-up water, industrial contaminants immobilization and control of pests in the crop [5]. The promise of AuNPs for diverse biological application across the fields of gene therapy, biosensor, biological imaging, photothermal therapy, theranostic system and as a carrier for target cell drug delivery [6,7]

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