Biosynthesis of Gold Nanoparticles Using Extract of Grape (Vitis Vinifera) Leaves and Seeds

Abstract

A novel synthesis gold nanoparticles (GNPs) using a water extract of grape leaves and seeds as a natural source of both a reducing and stabilizing agents were reported. The gold nanoparticles obtained were characterized by UV-visible spectra, transmission electron microscopy (TEM) and X-ray diffraction (XRD). TEM studies showed the particles to be of various shapes and sizes. The XRD patterns of the GNPs showed a (1 1 1) preferential orientation of the gold nanoparticles. Fourier transform infra-red spectroscopy (FTIR) measurements showed the GNPs having a coating of the extract compounds indicating a possible role of phenolic groups for capping and stabilization of the gold nanoparticles. The photoluminescence measurements revealed the oxidation of the extract compounds during the process of Au 3+ reduction. As we used green and eco-friendly synthetic reagents used