Abstract

SYNTHESIS AND CHARCTERISATION OF CHITOSAN-SILVER (I) OXIDE BIONANOCOMPOSITE LOADED WITH ACHYRANTHES ASPERA

P. Shanthi* and P. Nivedha

Abstract

Bionanocomposites are the nanocomposites made from renewable nanoparticles or they are derived from biopolymer. The current study deals with the synthesis and characterisation of chitosan-silver (I) oxide bionanocomposite loaded with Achyranthes aspera. The synthesised bionanocomposite was found to be eco-friendly, biodegradable, biocompatible, cost effective and bioactive. It is characterized by UV-VIS, FTIR, FESEM studies. UV-VIS and FTIR studies confirmed the formation of bionanocomposite. FESEM result showed that particles were spherical and having size less than 100 nm. Antibacterial activity of bionanocomposite was determined by agar well diffusion method against E. coli and S. aureus. Antioxidant activity of the bionanocomposite was analysed by DPPH method. The IC50 value showed that the bionanocomposite is a good antioxidant. Hence, the synthesized bionanocomposite can be used to treat infection or wounds. It can be used in food storage and food packaging.

Keywords: Bionanocomposite, Chitosan, Achyranthes aspera, UV-VIS, FTIR, FESEM, Agar well diffusion method, E. coli, S. aureus, DPPH method, IC50 value.