Sudhagar, B (2019) Preparation and characterization of hybrid chitosan-silver nanoparticles (Chi-Ag NPs); A potential antibacterial agent. International Journal of Biological Macromolecules, 141. pp. 290-297. ISSN 0141-8130

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Abstract

In this study, a novel ecofriendly chitosan- silver nanoparticles hybrid was developed. Biological method
using leaf extract of T. portulacifolium was used as reducing agent for its synthesis and the antibacterial
efficiency of these hybrid nanoparticles were evaluated against the bacteria E. coli and S. marcescens
organisms. The intense peak observed around 419 nm in the UV–Vis indicates the formation of silver
nanoparticles. The XRD analysis showed that the hybrid chitosan-silver nanoparticles have a polycrystalline and face-centered cubic configuration. FTIR spectrum hybrid chitosan-silver nanoparticles indicated speaks vibration of NAH and OAH. The EDS analysis confirmed the presence of Ag, O, C and N
elements in the prepared sample. The spherical shape was obtained from TEM analysis and it indicated
that with average particles around 3.24 nm to 44.80 nm. The prepared hybrid chitosan-silver nanoparticles showed significant antibacterial activities against E. coli and S. marcescens. In addition, the surface
membrane damages and surface morphology of test pathogens were visualized using FESEM analysis

Item Type: Article
Uncontrolled Keywords: Green synthesis Talinum portulacifolium Silver nanoparticles Chitosan Antibacterial activity
Divisions: PSG College of Arts and Science > Department of Biotechnology
Depositing User: Mr Team Mosys
Date Deposited: 20 Oct 2022 09:44
Last Modified: 20 Oct 2022 09:44
URI: http://ir.psgcas.ac.in/id/eprint/1613

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