INVESTIGATION OF ANTIBACTERIAL PROPERTIES OF SILVER NANOPARTICLES USING AERVA LANATA EXTRACT

Abstract: The field of nanotechnology is the most active area of research in modern materials science. Though there are many chemical as well as physical methods, green synthesis of nanomaterials is the most emerging method of synthesis. We report the synthesis of antibacterial Silver nanoparticles (AgNPs) using flower of medicinal herb, Aerva lanata. The synthesized AgNPs have been characterized by UV-Vis spectroscopy, FT-IR, transmission electron microscopy (TEM) and Cyclic Voltammetry(CV). The mean particle of synthesized NPs was found to be 43.5 nm, as confirmed by TEM. FTIR analysis revealed that the AgNPs were stabilized by proteins, polyphenols and other aromatic compounds present in the extract. Such AgNPs stabilized by Aerva lanata flower extract were found to have enhanced antimicrobial activity against well-known pathogenic strains, namely E.Coli, Staphylococus aureus, Bascillus cereus and Pseudomonas aeruginosa. Keywords: Silver Nanoparticles; Aerva lanata; TEM; Antibacterial activity;