Journal
NANOMEDICINE
Volume 15, Issue 17, Pages 1653-1669Publisher
FUTURE MEDICINE LTD
DOI: 10.2217/nnm-2020-0129
Keywords
antimicrobial; antioxidant; antiviral; biosynthesis; Cr2O3 NPs; Hyphaene thebaica
Funding
- UNESCO-UNISA Africa Chair in Nanosciences and Nanotechnology
- National Research Foundation of South Africa
- Abdul Salam International Centre for Theoretical Physics (ICTP) via the Nanosciences African Network
- TWAS-COMSTECH
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Aim: The biosynthesis of chromium oxide nanoparticles (Cr2O3 NPs), using Hyphaene thebaica as a bioreductant, for assessment of their potential nanomedicinal applications. Materials & methods: Biosynthesized Cr2O3 NPs were characterized by x-ray diffraction, Fourier-transform infrared spectroscopy, energy dispersive x-ray spectroscopy, scanning and transmission electron microscopy, selected area electron diffraction, UV-Vis spectroscopy and zeta-potential measurement. In vitro assays were used to assess the biological properties of Cr2O3 NPs. Results: Nanoparticles with size approximately 25-38 nm were obtained with a characteristic Cr-O vibration at 417 cm(-1). A broad spectrum antimicrobial potential and antioxidant nature is reported. Slight inhibition of polio virus and biocompatibility at low doses was observed. Conclusion: We conclude a multifunctional nature of biogenic Cr2O3 NPs. [GRAPHICS] .
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