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Antibacterial Activities of Biosynthesized Zinc Oxide Nanoparticles and Silver-Zinc Oxide Nanocomposites using Camellia Sinensis Leaf Extract
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Document Title
Antibacterial Activities of Biosynthesized Zinc Oxide Nanoparticles and Silver-Zinc Oxide Nanocomposites using Camellia Sinensis Leaf Extract
Author
Jha P.K. Chawengkijwanich C. Pokum C. Soison P. Techato K.
Affiliations
Department of Pharmaceutical Chemistry Faculty of Pharmaceutical Sciences Prince of Songkla University Songkhla 90110 Thailand; National Nanotechnology Center National Science and Technology Development Agency Thailand Science Park Pathum Thani 12120 Thailand; Faculty of Environmental Management Prince of Songkla University Songkhla 90110 Thailand
Type
Article
Source Title
Trends in Sciences
ISSN
27740226
Year
2023
Volume
20
Issue
3
Open Access
All Open Access Hybrid Gold
Publisher
Walailak University
DOI
10.48048/tis.2023.5649
Abstract
Green route of nanomaterials synthesis is increasing in demand due to ecofriendly to the environment. In this research objective is to biosynthesize and evaluate the antibacterial performance of pure ZnO and Ag/ZnO nanocomposites using Camellia sinensis leaf extracts. Pure ZnO nanoparticles and Ag/ZnO nanocomposites were synthesized using Camellia sinensis leaf extract. The antibacterial effectiveness against gram-positive (Staphylococcus aureus) and gram-negative (Escherichia coli) bacteria were examined and compared with 1 % Chlorox as a commercial disinfectant by well diffusion method based on the zone of inhibition. Pure ZnO nanoparticles and Ag/ZnO nanocomposites had hexagonal shape ZnO nanoparticles and rectangular shape Ag nanoparticles in Ag/ZnO nanocomposites with a particle crystal size between 20 - 30 nm with carboxylic and phenolic functional group attached on it. Ag/ZnO nanocomposites exhibited antibacterial effectiveness against both gram-positive and gram-negative bacteria while pure ZnO nanoparticles exhibited antibacterial effectiveness against only gram-positive bacteria. Conversely 1 % Chlorox and 1 % DMSO showed no significant antibacterial activity against gram-positive and gram-negative bacteria. Camellia sinensis mediated ZnO and Ag/ZnO nanoparticles showed antibacterial potential against S. aureus and E. coli suggesting that green route to synthesis of antibacterial nanoparticles can be an excellent strategy to develop eco-friendly disinfectant products. ? 2023 Walailak University. All rights reserved.
License
CC BY-NC-ND
Rights
Walailak University
Publication Source
Scopus