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    CHARACTERIZATION, ANTIBACTERIAL ACTIVITY, AND CYTOTOXICITY OF COTTON FABRIC COATED WITH METAL NANOPARTICLES
    (2023-06) Abdi Atteye, Ladan
    In recent years, one of the fastest-growing industries has been the antibacterial textile business, which has greatly benefited from nanoparticles due to their unique and helpful properties for high-performance textiles. In this research project, fabric cotton is coated with different fractions of metal nanoparticles like lanthanum (La), cobalt (Co), and gallium (Ga) using the co-precipitation method. The prepared composites were characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive X-ray (EDX), Fourier transform infrared spectroscopy (FTIR), and thermogravimetric analysis (TGA). According to the findings of the XRD analysis, cellulose was transformed into cellulose II, and Co and La were not detected in the XRD pattern. The results of the SEM analysis showed that nanometal particles were detected on the cotton's surface. EDX further investigated the structure of the nanometal particles. The starching and bending modes of the functional groups were detected using FTIR. The thermal stability of the prepared composites was studied using TGA. The in vitro antibacterial activity of the cotton-metal composites was studied using Staphylococcus aureus bacteria. The disk diffusion method showed that the composites had no antibacterial activity, while the dilution method showed antibacterial activity. A deep blue assay was used to evaluate the cytotoxicity behaviour of the prepared materials when cultured with a mouse fibroblast cell line for 24 hours. The results showed that the cotton-0.04M metal composite materials were cytocompatible and had no adverse effect.