Single step synthesis and characterization of Silver nanoparticles from Ocimum tenuiflorum L. Green and Purple

Abstract

A single step environnemental friendly approach is employed to synthesise Silver nanoparticles using Ocimum tenuiflorum L. green and purple (Tulasi) varieties. Synthesised AgNps are analysed by using UVVisible, FTIR, Scanning Electron Microscope (SEM) and Energy Dispersive X-ray spectroscope(EDX). The formation of nanoparticles was confirmed by colour change and the surface Plasmon absorption band was measured by the UV-Visible spectroscopy .The FTIR peak corresponds to the presence of C-H vibration of the aromatic ring and the stretch vibration of C-O indicates carbonyl group and flavonoids. SEM analysis of the synthesised Silver nanoparticles are clearly distinguishable and the particles are measured <100nm in size. The EDX spectra show the purity of the material. Synthesis is conventional and found to be efficient in terms of reaction time as well as cost effective.