Synthesis of Silver Nano Particles from Adansonia digitata Leaf Extract and Its Antimicrobial Properties

Abstract

Silver nano particles (AgNPs) were green synthesized using Adansonia digitata leaf extract. The synthesized silver nano particles were characterized in terms of synthesis, size, shape, morphology and capping functionalities by UV-Visible Spectroscopy, Scanning Electron Microscopy (SEM) and Fourier Transform Infrared Spectroscopy (FTIR). Antimicrobial activity of the synthesized silver nano particles was investigated by well diffusion method. The antibacterial activity of the nano particle was studied against Staphylococcus aureus, Escherichia coli, Bacillus subtilis, Pseudomonas aeurigunosa, Salmonella typhi and Klebsiella pneumonae while the antifungal activity was studied against Candida albicans, Aspergillus niger, Penicillum notatum and Rhizopus stolomifer. The synthesized AgNPs was active against all the studied microorganisms. Staphylococcus aureus was the most susceptible bacterium (inhibition zones ranging from 12.00 to 28.00 mm, MIC: 30 µl, MBC: 50 µl) while Aspergillus niger was the most susceptible fungi (inhibition zones ranging from 10.00 to 18.00 mm, MIC: 90 µl, MFC: 120 µl. In conclusion the synthesized silver nanoparticles was found to have antimicrobial activity against the pathogenic bacteria and fungi tested and hence has a great potential in biomedical application for the treatment of microbial infections.

Bimetallic nanoparticles and biochar produced by Adansonia Digitata shell and their effect against tomato pathogenic fungi

“…2 . The FTIR spectrum of A. digitata fruit shell extract was noted at the following peaks: 3,327 cm −1 that corresponds to O-H (hydroxyl) stretching from the secondary amine ( Eze & Nwaeze, 2022 ), 2,027 cm −1 assigned to the C-H (alkane) stretching vibrations in aromatic compound ( Akintola et al, 2020 ); and 1,639 cm −1 related to the N-H bond of primary amine ( Muthukumar et al, 2020 ). The FTIR spectra for AgNPs, FeONPs, Ag-FeONPs, and BC are shown in Fig.…”