Abstract

The exploitation of various plant materials for the biosynthesis of nanoparticles is considered a green
technology because it does not involve any harmful chemicals. The present study reports the synthesis of silver
nanoparticles using Achyranthes aspera plant extract. These AgNPs were embedded in chitosan (CS)
biopolymer to protect against nanoparticle aggregation. The resulting CS-AgNPs were characterized by UV-
Visible and FT-IR spectroscopy. The formation of AgNPs whose relative absorbance was found to be in between
425 nm to 435 nm was justified by UV-VIS spectroscopy. Further these biologically synthesized nanoparticles
exhibited a tremendous antibacterial activity against E.coli and Staphylococcus aureus.