Dioscorea batatas Rhizome-Assisted Rapid Biogenic Synthesis of Silver and Gold Nanoparticles

Abstract

Development of biologically inspired experimental process for the synthesis of nanoparticles is an important branch of nanotechnology. Here the authors have synthesized silver and gold nanoparticles (AgNPs and AuNPs) by using rhizome extract of Dioscorea batatas at 50°C (AuNps), AgNPs was carried out at 80°C as well as room temperature (25°C). The reductions of Ag and Au ions were observed by the color changes from colorless to brownish yellow, and dark yellow and dark red wine, respectively. The reaction was followed with the help of UV-visible spectrometer. The synthesized nanoparticles were characterized using Fourier transform infrared spectroscopy, X-ray diffraction, and scanning electron microscope analysis. The authors did not find, formation of gold nanoparticles at room temperature. Furthermore, this green biogenic approach is rapid and simple alternative to chemical synthesis methods.

Keywords:

• biogenic synthesis
• Dioscorea batatas
• nanoparticles