Novel jointured green synthesis of chitosan ‑silver nanocomposite: An approach towards reduction of nitroarenes, anti-proliferative, wound healing and antioxidant applications

Int J Biol Macromol. 2023 Jun 26:125578. doi: 10.1016/j.ijbiomac.2023.125578. Online ahead of print.ABSTRACTHere we present the simple green synthesis of chitosan‑silver nanocomposite (CS-Ag NC) by employing kiwi fruit juice as reducing agent. The structure, morphology, and composition of CS-Ag NC were determined using characterization techniques such as XRD, SEM-EDX, UV-visible, FT-IR, particle size, and zeta potential. The prepared CS-Ag nanocomposite was effectively used as catalyst in the reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) in the presence of NaBH4 as reductant, in aqueous medium at room temperature. The toxicity of CS-Ag NC was assessed on Normal (L929) cell line, Lung cancer (A549) cell line and Oral cancer (KB-3-1) cell line and their respective IC50values observed were 83.52 μg/mL, 66.74 μg/mL and 75.11 μg/mL. The CS-Ag NC displayed significant cytotoxic activity and the cell viability percentage for normal, lung and oral cancer cell lines were found to be 42.87 ± 0.0060, 31.28 ± 0.0045 and 35.90 ± 0.0065 respectively. Stronger cell migration was exemplified by CS-Ag NC and the percentage of wound closure (97.92 %) was substantially identical to that of the standard drug ascorbic acid (99.27 %). Further CS-Ag nanocomposite was subjected for in vitro antioxidant activity.PMID:37379943 | DOI:10.1016/j.ijbiomac.2023.125578

Source: International Journal of Biological Macromolecules - June 28, 2023 Category: Biochemistry Authors: Barnabas Kodasi Ravindra R Kamble Arun K Shettar Joy H Hoskeri Rangappa S Keri Tukaram V Metre Lokesh Bheemayya Vishwa B Nadoni Manojna R Nayak Source Type: research