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Metal-oxide-based nanostructure has got a significant interest for anticorrosion, antioxidant, and antibacterial applications. Herein, ZnO nanoparticles (NPs) and nanoneedles (NNs) are prepared by hydrothermal synthesis and used for antibacterial and antioxidant properties. The scanning electron microscopy (SEM), transmission electron microcopy (TEM), X-ray diffraction (XRD) and UV–visible Spectroscopy are used to characterize the ZnO-based nanostructures. The ZnO NNs exhibit excellent antibacterial properties against a strain of Gram-positive and Gram-negative bacterium of (18 and 16 nm) zone of inhibition (ZOI) compared to ZnO NPs (10 and 12 mm ZOI), respectively. Moreover, their scavenging against 2,2-diphenyl-1-picryhydrazyl free radical is investigated. The ZnO NNs show the highest antioxidant activity (~ 94%) compared to ZnO NP (~ 46%). We believe this study is aims to be significant in various bio-medical industries regarding new structures development as well as antibacterial and antioxidant studies.Graphical abstract[graphic not available: see fulltext]
International Nano Letters – Springer Journals
Published: Jun 1, 2022
Keywords: ZnO; Nanoparticles; Nanoneedles; Antibacterial; Antioxidant
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