Green synthesis of silver nanoparticles and their structural and optical properties

Green synthesis of silver nanoparticles (AgNPs) by Coccinia indica leaf extract was extent the biogenic synthesis of metal nanomaterials offers an environmentally benign alternative to the conventional chemical synthesis. Upon contact, rapid reduction of Ag+ ions was observed in <1 min with Ag nanoparticle formation reaching 90% completion in <20 min. Effect of leaves extract concentration on the particle size and shape were investigated from UV–vis spectrum, X-ray Diffraction (XRD), and Energy Dispersive X-ray (EDX). The biosynthesis of silver nanoparticles is in the size range of 10-20 nm and is crystallized in face centred cubic symmetry. The possible biochemical mechanism leading to the formation of silver nanoparticles was studied using FT-IR. The synthesized silver nanoparticles may be extremely useful in making biosensor devices as well as for other applications.