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Article

Synthesis of Zinc Oxide Nanoparticles Using Rubus fairholmianus Root Extract and Their Activity against Pathogenic Bacteria

by
Naresh Kumar Rajendran
,
Blassan P. George
*,
Nicolette N. Houreld
and
Heidi Abrahamse
Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, P.O. Box 17011, Doornfontein, Johannesburg 2028, South Africa
*
Author to whom correspondence should be addressed.
Molecules 2021, 26(10), 3029; https://doi.org/10.3390/molecules26103029
Submission received: 22 April 2021 / Revised: 11 May 2021 / Accepted: 14 May 2021 / Published: 19 May 2021
(This article belongs to the Special Issue Active Pharmaceutical Ingredient (API): Synthetic Strategies and Characterization)
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Abstract

Recently, the biosynthesis of zinc oxide nanoparticles (ZnO NPs) from crude extracts and phytochemicals has attracted much attention. Green synthesis of NPs is cost-effective, eco-friendly, and is a promising alternative for chemical synthesis. This study involves ZnO NPs synthesis using Rubus fairholmianus root extract (RE) as an efficient reducing agent. The UV spectrum of RE-ZnO NPs exhibited a peak at 357 nm due to intrinsic bandgap absorption and an XRD pattern that matches the ZnO crystal structure (JCPDS card no: 36-1451). The average particle size calculated from the Debye–Scherrer equation is 11.34 nm. SEM analysis showed that the RE-ZnO NPs spherical in shape with clusters (1–100 nm). The antibacterial activity of the NPs was tested against Staphylococcus aureus using agar well diffusion, minimum inhibitory concentration, and bacterial growth assay. The R. fairholmianus phytochemicals facilitate the synthesis of stable ZnO NPs and showed antibacterial activity.
Keywords: zinc oxide; green synthesis; nanoparticles; antibacterial; Rubus fairholmianus zinc oxide; green synthesis; nanoparticles; antibacterial; Rubus fairholmianus

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MDPI and ACS Style

Rajendran, N.K.; George, B.P.; Houreld, N.N.; Abrahamse, H. Synthesis of Zinc Oxide Nanoparticles Using Rubus fairholmianus Root Extract and Their Activity against Pathogenic Bacteria. Molecules 2021, 26, 3029. https://doi.org/10.3390/molecules26103029

AMA Style

Rajendran NK, George BP, Houreld NN, Abrahamse H. Synthesis of Zinc Oxide Nanoparticles Using Rubus fairholmianus Root Extract and Their Activity against Pathogenic Bacteria. Molecules. 2021; 26(10):3029. https://doi.org/10.3390/molecules26103029

Chicago/Turabian Style

Rajendran, Naresh Kumar, Blassan P. George, Nicolette N. Houreld, and Heidi Abrahamse. 2021. "Synthesis of Zinc Oxide Nanoparticles Using Rubus fairholmianus Root Extract and Their Activity against Pathogenic Bacteria" Molecules 26, no. 10: 3029. https://doi.org/10.3390/molecules26103029

APA Style

Rajendran, N. K., George, B. P., Houreld, N. N., & Abrahamse, H. (2021). Synthesis of Zinc Oxide Nanoparticles Using Rubus fairholmianus Root Extract and Their Activity against Pathogenic Bacteria. Molecules, 26(10), 3029. https://doi.org/10.3390/molecules26103029

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