Abstract
Ordinary products undergo a transformation to imbue new functional characteristics through the incorporation of nanocomposites into textile fabrics due to their high surface-volume ratio. In the present research, activated carbon (AC) manganese oxide nanocomposite was prepared through the sonochemical method using almond leaves and incorporated into cotton fabric via ultrasonic and dip coating methods to enhance the antibacterial activity. The characterization of the nanocomposite was conducted using various techniques such as X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy,energy-dispersive X-ray spectroscopy, UV–vis spectroscopy, and photoluminescence spectroscopy. The photo luminescence spectra showed a predominant yellow emission at 572 nm. The AC-Mn3O4 nanocomposite exhibited excellent antibacterial activity against gram-positive and -negative bacteria. Notably, AC-Mn3O4 nanocomposite-loaded cotton fabric showed tremendous activity toward Staphylococcus and Escherichia coli bacteria. The antioxidant evaluation using 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay revealed a higher antioxidant activity with a lower IC50 value. In vitro cytotoxicity of AC-Mn3O4 nanocomposite was examined using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetazolium bromide (MTT) assay against normal mouse fibroblast cells(NIH3T3 cell line) at different concentrations with an IC50 value of 187.6 μg/ml. These results confirm the simple, nontoxic and eco-friendly protocol for the coating of AC-Mn3O4 nanocomposite on cotton fabric, which could be used as a safer alternative approach in health-care applications.
Published Version
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