Asian Pacific Journal of Tropical Biomedicine (Jan 2023)

Characterization and antimicrobial, antioxidant, and anti-proliferative activities of green synthesized magnesium oxide nanoparticles with shoot extracts of Plicosepalus curviflorus

  • Reem Hamoud Alrashoudi,
  • Manal Abudawood,
  • Ayesha Mateen,
  • Hajera Tabassum,
  • Noura Ibrahem Alghumlas,
  • Sabiha Fatima,
  • Basmah Almaarik,
  • Farah Maqsood,
  • Nawal M Al Musayeib,
  • Musarat Amina

DOI
https://doi.org/10.4103/2221-1691.380563
Journal volume & issue
Vol. 13, no. 7
pp. 315 – 324

Abstract

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Objective: To synthesize magnesium oxide nanoparticles using ethanol extract of shoots of Plicosepalus curviflorus (PC-MgONPs) and evaluate the antimicrobial, antioxidant, and anti-proliferative activities of PC-MgONPs. Methods: The green synthesized PC-MgONPs were characterized by ultraviolet-visible (UV), Fourier-transform infrared spectroscopy, zeta potential, energy dispersive X-ray, and scanning electron microscopy. Furthermore, we investigated total antioxidant capacity and antimicrobial and anti-proliferative activities using breast cancer cell lines (MDA-231). Results: The UV spectrum of PC-MgONPs showed a sharp absorption peak at 300 nm. The presence of magnesium, oxygen, and sodium was confirmed by energy dispersive X-ray analysis. Scanning electron microscopy revealed PC-MgONPs as roughly spherical granular structures with sizes ranging from 20.0 to 76.4 nm. PC-MgONPs showed considerable antimicrobial activities against Escherichia coli, Staphylococcus aureus, methicillin-resistant Staphylococcus aureus, Pseudomonas aeruginosa and Candida albicans with zones of inhibition of 11-17 mm. In addition, total antioxidant capacity and anti-proliferative activity of PC-MgONPs against MDA-231 cells were dose-dependent. Conclusions: The synthesized PC-MgONPs could be a potent antimicrobial, antioxidant and anti-cancer agent, which needs further investigation.

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