BIOGENESIS OF SILVER NANOPARTICLES USING ALTERNANTHERA FICOIDEA LEAF EXTRACT AND ITS ANTIBACTERIAL POTENTIAL

Abstract

The synthesis of nanomaterials is a cornerstone of nanotechnology. Most of the synthesis methods encompassing chemical routes have led to environmental pollution, especially the bi-products associated with metal production. Here we report an environmentally benign and cost effective approach in synthesizing silver nanoparticles using leaf extracts of Alternanthera ficoidea. The surface plasmon resonance of silver nanoparticles produced a peak centered near 410nm was characterized by UV-Visible spectrophotometer. Silver nanoparticles were circular in shape with maximum particles in size range within 4–22 nm as observed under Transmission electron microscope (TEM). As-synthesized silver nanoparticles were also found to inhibit the growth of two gram negative clinical bacterial isolates Escherichia coli, and Serratia marcescens.