Green synthesis of AgNPs from Viburnum tinus plant and some biological applications on the extracts

Abstract

Abstract: This study investigated the biological activities of Viburnum tinus L. extracts and their silver nanoparticles (AgNPs). Leaves and stems were collected from the Al-Jabal Al-Akhdar region, Libya, and extracted using two solvents: water and ethanol. The biosynthesized AgNPs were characterized using Scanning and Transmission Electron Microscopy (SEM and TEM), revealing near-spherical particles with average sizes of 16.3 nm and 13.0 nm for the leaf- and stem-derived nanoparticles, respectively. The extracts and their corresponding AgNPs were evaluated for antibacterial activity against a panel of bacterial species and for anti-inflammatory potential. The results demonstrated that the silver nanoparticles significantly enhanced the bioactivity of the original plant extracts. The AgNPs exhibited superior antibacterial efficacy and a more potent anti-inflammatory effect compared to the crude extracts alone.