In this study, we reported an easy, rapid, cost-effective and environmentally benign method for the fabrication of silver nanoparticles (Ag-NPs) using Olea ferruginea as reducing, capping and stabilizing agent.For this, an aqueous extract of leaf and bark of O.ferruginea was treated with 1 mM AgNO3, which reduces Ag ions to Ag-NPs by establishing reddish brown color.
The synthesized Ag-NPs were spherical crystals, with a mean size of 23 and 17 nm for leaf- and bark-mediated Ag-NPs, respectively.Fourier transform infrared spectroscopy affirmed the role of leaf 2 Piece Dresser and bark extracts of O.ferruginea as reducing, capping and stabilizing agent.
These biosynthesized Ag-NPs showed profound antibacterial activity against Gram-negative (Pseudomonas aeruginosa and Escherichia coli) and Gram-positive (Streptococcus pneumonia and Staphylococcus aureus) bacteria.The highest antibacterial activity was shown by bark Ag-NPs Priming Tools against S.aureus (14.
00 mm), while leaf Ag-NPs showed higher activity against S.pneumonia (13.00 mm).
Additionally, they produced effective antioxidant activity against 2,2-diphenyl-1-picrylhydrazyl (DPPH) as compared to plant extracts and positive control.It was observed that the bark-mediated Ag-NPs had higher percentage (90%) of scavenging potential than the leaf-mediated Ag-NPs (78%).The significance of the current study is the synthesis of eco-friendly, easy and cost-effective Ag-NPs as biomedical products.