Synthesis and Characterization of Chitosan-Silver Nanocomposite Using Chemical Reduction Method and their Antibacterial Properties

Ansab Ali Zaidi; RY Khosa; A. Atiq; Muhammad Usman; Lucky Imosobomeh Ikhioya

doi:10.20221/jnmsr.v2i1.17

Authors

Ansab Ali Zaidi Department of Physics, University of Education Lahore, DG Khan Campus 32200, Pakistan
RY Khosa Department of Physics, University of Education Lahore, DG Khan Campus 32200, Pakistan
A. Atiq Department of Physics, University of Education Lahore, DG Khan Campus 32200, Pakistan
Muhammad Usman Department of Physics, University of Education Lahore, DG Khan Campus 32200, Pakistan
Lucky Imosobomeh Ikhioya Department of Physics and Astronomy, University of Nigeria Nsukka, 410001 Nsukka, Nigeria https://orcid.org/0000-0002-5959-4427

DOI:

https://doi.org/10.20221/jnmsr.v2i1.17

Keywords:

chitosan, silver, nanoparticles, FTIR, antibacterial

Abstract

This study synthesized chitosan silver nanocomposite using chemical reduction and ultraviolet irradiation. This method is straightforward and yields abundant products in brief intervals of time. The targeted composite is got without using toxic chemical reagents which might contribute to antibacterial, antifungal, and anticancer activities. Chitosan silver nanocomposites got in this method have a large surface-to-volume ratio. The presence of chitosan silver nanocomposite in the prepared sample is confirmed by an ultraviolet-visible (UV-VIS) spectrophotometer, a typical plasmonic peak for silver nanoparticles was observed at 440 nm. The structural and functional groups induced in the product sample due to the presence of chitosan silver nanocomposites are confirmed by FTIR. The antimicrobial application against gram-positive and gram-negative bacteria is confirmed by the zone of inhibition created by nanocomposites. This study could provide a basic understanding for preparing polymeric-metal composites for antibacterial applications.

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