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  • Title: Facile Synthesis of SiO₂/CMC/Ag Hybrids Derived from Waste Biomass (Sugarcane Bagasse) Having Special Medical Application.
    Author: Kumar H, Gehlaut AK, Gaur A, Park JW, Maken S.
    Journal: J Nanosci Nanotechnol; 2020 Oct 01; 20(10):6413-6421. PubMed ID: 32384992.
    Abstract:
    This research is focused on the use of sol gel technique to synthesize amorphous SiO₂ hybrids derived from lab made CMC (made from sugarcane bagasse) and tetraethoxysilane (TEOS) comprising silver nanoparticles (Ag-NPs). The dominant absorption peak in the order of 425 nm confirms the presence of Ag-NPs hybrid group owing to the surface Plasmon resonance (SPR). Ag-NPs hybrid characterization of was performed by Ultra violet-visible spectra (UV-Vis), Scanning electronic microscopy (SEM), Transmission electron microscopy (TEM), Particle size analyser (PSA), Energy Dispersive X-ray spectroscopy (EDX), X-ray diffractometer (XRD) and Fourier transform infrared spectroscopy (FTIR). The antibacterial action of Ag-NPs in contrast to Gram-negative bacteria (Escherichia coli) (ATCC 433) and Gram-positive bacteria (Bacillus subtilis) (ATCC 1688) was analyzed by using the method of agar disk diffusion technique. Ag-NPs hybrids extracted from lab-made CMC confirm higher adverse bacterial action through Gram-positive bacteria as well as Gram-negative bacteria related to synthetic CMC acquired from the market.
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