首页|Evaluation of antimicrobial and antioxidant activity of zinc oxide nanoparticles biosynthesized with Ziziphus spina-christi leaf extracts

Evaluation of antimicrobial and antioxidant activity of zinc oxide nanoparticles biosynthesized with Ziziphus spina-christi leaf extracts

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  • NETL
  • NSTL
  • Taylor & Francis
Background: Due to their simplicity, eco-friendliness, availability and non-toxicity, the greener fabrication of metal and metal oxide nanoparticles has been a highly attractive research area over the last decade. Aim: This study aimed to assess the antioxidant and antimicrobial activities of the green synthesized zinc oxide nanoparticles (ZnO-NPs) using an aqueous leaf extract of Ziziphus spina-christi. Method: The antioxidant property of ZnO-NPs was analyzed by the a, a-diphenyl-p-picrylhy-drazyl (DPPH) and hydrogen peroxide (H_2O_2). Additionally, the diffusion agar method assessed the antimicrobial activities against bacteria and fungi. Results: ZnO-NPs synthesized by Z. spina-christi had shown promising H_2O_2 and DPPH free radical scavenging actions compared to vitamin C. The ZnO-NPs exhibited significant antibacterial activity against the tested bacteria with various susceptibility as a concentration-dependent effect. The largest zone of inhibition for Staphylococcus aureus (S. aureus) was observed (36 ±2 mm) compared to Escherichia coli (E. coli) (15±2mm) by the same concentration of ZnO-NPs. The ZnO-NPs showed remarkable antifungal activity against Aspergillus niger. Conclusion: It can be concluded that, ZnO-NP have been imposed as suitable antimicrobial agent being able to combat both S. aureus and £ coli in vitro.

ZnO-NPsZiziphus spina-christiantioxidantantimicrobialStaphylococcus aureusEscherichia coli

Bushra H. Shnawa、Parwin J. Jalil、Ali Al-Ezzi、Renjbar M. Mhamedsharif、Daniyal A. Mohammed、Donia M. Biro、Mukhtar H. Ahmed

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Biology Department, Faculty of Science, Soran University, Kurdistan, Iraq

Biology Department, Faculty of Science, Soran University, Kurdistan, Iraq||Scientific Research Centre, Soran University, Kurdistan, Iraq

Biology Department, Faculty of Education, Aden University, Aden, Yemen

Sisaf Drug Delivery Nanotechnology, Ulster University, Belfast, UK

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2024

10.1080/26896583.2023.2293443

Journal of Environmental Science and Health, Part C. Toxicology and Carcinogenesis

Journal of Environmental Science and Health, Part C. Toxicology and Carcinogenesis

ISSN：2689-6583
年,卷(期)：2024.42(1/4)
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