Biogenic Zinc Oxide Nanorods with Potent Antibacterial, Wound Healing, and Antidiabetic Applications Via NBDG Uptake in HepG2 Cells
摘要
Today, a wide range of biological applications depend on nanoparticles as small as 100 nm. In this study, zinc oxide nanorods were successfully produced using the fungus Aspergillus niger culture filtrate (A. niger). UV-visible absorption spectroscopy showed an absorption peak at 270 nm, indicating the formation of zinc oxide nanorods. Fourier Transform Infrared Spectroscopy (FTIR) study revealed that O-H bonds of phenols, alcohols, and aromatic primary amines are associated with zinc oxide nanorods. The SEM analysis showed almost spherical topology of the synthesized nanorods. However, Transmission Electron Microscopy (TEM) reveals that the nanoparticles are rod-like and range in size from 16 to 21 nm. Zinc and oxygen were detected by energy-dispersive X-ray spectroscopy (EDS). Thermogravimetric analysis (TGA) confirms weight loss between 30 and 900 °C with 7.730, 39.242, 17.982, and 25.089%. Zinc oxide nanorods effectively inhibit the growth of bacterial pathogens; however, among the pathogens tested, Staphylococcus aureus showed the largest inhibition zone (17 mm). The HepG2 cells treated with these nanorods showed a remarkable 78.61% increase in glucose uptake compared to the standard control, as measured by NBDG uptake. Additionally, after 48 h of incubation, these zinc oxide nanorods showed good wound-healing in L929 skin fibroblast cells, achieving 99.93% wound closure. Also, the chick chorioallantoic membrane (CAM) assay confirmed that these nanorods enhance angiogenesis. Based on the observed results, these zinc oxide nanorods could be used in the biomedical and pharmaceutical applications.