Issue 40, 2020

Green synthesis of ZnO nanoparticles using orange fruit peel extract for antibacterial activities

Abstract

This paper presents an efficient, environmentally friendly, and simple approach for the green synthesis of ZnO nanoparticles (ZnO NPs) using orange fruit peel extract. This approach aims to both minimize the use of toxic chemicals in nanoparticle fabrication and enhance the antibacterial activity and biomedical applications of ZnO nanoparticles. In this work, an aqueous extract of orange peel was used as the biological reduction agent for the synthesis of ZnO NPs from zinc acetate dihydrate. It was found that the size and morphology of the ZnO NPs significantly depended on physicochemical parameters such as the annealing temperature and pH during NP synthesis. The ZnO NPs exhibited strong antibacterial activity toward Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) without UV illumination at an NP concentration of 0.025 mg mL−1 after 8 h of incubation. In particular, the bactericidal activity towards S. aureus varied extensively with the synthesis parameters. This study presents an efficient green synthesis route for ZnO NPs with a wide range of potential applications, especially in the biomedical field.

Graphical abstract: Green synthesis of ZnO nanoparticles using orange fruit peel extract for antibacterial activities

Article information

Article type
Paper
Submitted
04 jun 2020
Accepted
18 jun 2020
First published
23 jun 2020
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2020,10, 23899-23907

Green synthesis of ZnO nanoparticles using orange fruit peel extract for antibacterial activities

T. U. Doan Thi, T. T. Nguyen, Y. D. Thi, K. H. Ta Thi, B. T. Phan and K. N. Pham, RSC Adv., 2020, 10, 23899 DOI: 10.1039/D0RA04926C

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