Abstract
P. ZEYLANICA MEDIATED GREEN SYNTHESIS AND CHARACTERIZATION OF SILVER NANO PARTICLES AND ITS ANTIBACTERIAL ACTIVITY

Indira Kandasamy* and Jeyadevi Kadarkarai

ABSTRACT

The synthesis, characterization and application of biologically synthesized nanomaterials have become an important branch of nanotechnology. Plumbago zeylanica is known as white chitrak, grows all districts of plains in Andhra Pradesh, Karnataka, Maharashtra. The purpose of this study was investigating experimentally about the synthesis of silver nanoparticles were carried out using the leaf of plant chitrak as a reducing agent. P. zeylanica was exposed in the synthesis of silver nanoparticles was investigated employing UV/Visible spectrophotometer, TEM (Transmission Electron Microscopy) & FTIR. After exposing the silver ions to leaf extract, rapid reduction of silver ions is observed leading to the formation of silver nanoparticles in solution. UV–VIS spectrum of the aqueous medium containing silver nanoparticles showed absorption peak at around 420 nm. From Transmission electron microscopy (TEM) analysis, the size of the silver nanoparticles was measured 20-40 nm. Fourier Transmission Infra-Red Spectroscopy (FTIR) and energy dispersive spectroscopy (EDS) support the biosynthesis and characterization of silver nanoparticles. The above silver nanoparticles were effective against S. aureus and P. aeroginosa.

Keywords: Nanoparticles, Plumbago zeylanica, UV–VIS spectrum, FTIR.


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