Clerodendrum colebrookianum extract mediated synthesis of AgNPs and its effective application as a sustainable catalyst for Oxazine transformation in neat condition and antibacterial activity.

Abstract

Silver nanoparticles (AgNPs) were synthesized through greener route using the Ethanol extract of Clerodendrum colebrookianum leaves. The synthesized AgNPs were characterized and confirmed through using various analytical studies like FT-IR, UV–vis, XRD, SEM, TEM, EDX, and SAED. Phytochemical content in the plant sample like carbohydrates, flavonoids, tannins, proteins and phenols were also investigated in this study as these biochemicals may contribute greatly in the biosynthesis of AgNPs as a reducing and capping agent. To further validate the versatility of the biosynthesized AgNPs, its catalytic and antibacterial properties were also studied. The green AgNPs were employed as a green catalyst for the synthesis of oxazines in neat condition. The antibacterial potency of the biosynthesized AgNPs was also studied against Bacillus subtilis, Escherichia coli, Klebsiella pneumonia, and Staphylococcus aureus.