<i>Aloe vera</i> - mediated silver-selenium doped fucoidan nanocomposites synthesis and their multi-faceted biological evaluation of antimicrobial, antioxidant and cytotoxicity activity

Abstract

The synthesized Ag-SeO2-doped (Fu) nanocomposites are novel therapeutic approaches against multidrug-resistant bacteria. The present study explores the synthesis, characterization, and evaluation of the antibacterial, antioxidant, and in vivo cytotoxic activities of novel nanocomposites. The distinguishing characteristics of Ag-Se/Fu nanocomposites were revealed through the use of UV-visible spectroscopy, EDX, and FTIR analysis. The result of the SEM micrograph shows that Ag-Se NPs and Fu nanocomposites, with average nanoparticle diameters that vary from 97.28 ± 7.14 nm, display spherical shapes. It was found that the potency of antioxidant and antimicrobial agents against Enterococcus faecalis, Klebsiella pneumonia, Escherichia coli, and Methicillin-resistant Staphylococcus aureus (MRSA). Moreover, the cytotoxicity assay indicates the nanocomposite has shown a survival rate of 98% in zebrafish embryos at 150 mg/mL. Compared to the control group, the embryos from the nanocomposite group had normal morphology, which is evidence of its safety and effectiveness. The results of this research reveal a promising strategy for multidrug-resistant bacteria with less cytotoxicity.