Synthesis, characterization and antimicrobial activity of bimetallic silver and copper nanoparticles using fruit pulp aqueous extracts of Moringa oleifera

Abstract

In the present study, synthesis of bimetallic silver and copper nanoparticles was carried out using Moringa oleifera (drumstick) fruit pulp aqueous extracts and the antimicrobial activity was assessed using this method. They were characterized using UV–Visible spectra, FTIR spectra, Electron microscopy and Raman spectroscopy. Antimicrobial activity was assessed by disc diffusion method. The size of the bimetallic nanoparticles formed was 9 nm. They showed a good zone of inhibition against pathogenic bacteria when compared to Ampicillin. Compared to other methods of synthesis, bimetallic particle synthesis was done using fruit extracts and these were found to show significant antimicrobial activity.