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SIIA Público
SISTEMA INTEGRAL DE INFORMACIÓN ACADÉMICA - PÚBLICO
Título del libro: Nanotechnology 2010: Advanced Materials, Cnts, Particles, Films And Composites - Technical Proceedings Of The 2010 Nsti Nanotechnology Conference And Expo, Nsti-Nanotech 2010 Título del capítulo: Green chemistry used in the synthesis and characterization of silver and gold nanoparticles
Ascorbic acids; Ethylenglycol; Gold Nanoparticles; Green chemistry; Green method; Metallic nanoparticles; Morphology and size; Particle size and its distribution; Polyol methods; Polyol process; Polyvinyl pyrrolidone; Reaction parameters; Surfactant properties; Synthesis; Synthesis and characterizations; Synthesis techniques; Alcohols; Chemical compounds; Complexation; Ecology; Electric properties; Films; Gold; Ketones; Nanoparticles; Nanotechnology; Organic acids; Surface active agents; Synthesis (chemical); Silver
Resumen:
Gold (Au) and silver (Ag) nanoparticles have a diversity of interesting properties between which they emphasize the electrical ones, optical, catalytic and the applications in biomedicine like antibacterial and antiviral, same that depend on their morphology and size. The nanoparticles were synthesized using polyol and green methods. We made a comparison of these methods in order to investigate the influence of reaction parameters on the resulting particle size and its distribution. In the first method we use polyol process with poly (vinylpyrrolidone) (PVP) acting as a stabilizer and ethylenglycol as a reductor. The green method is an ecological synthesis technique. In this article, we made use of chemical compounds of plants in order to obtain ascorbic acid as reductor agent and saponins with surfactant properties. Here, we show that green method allows synthesize metallic nanoparticles and reduces the temperature requirement which is in contrast to the obtained with the polyol method.