Eco-friendly synthesis, characterization, and antimicrobial studies of Zinc oxide nanoparticles using Cassia Javanica Leaf extract

The green approach for metal oxide Nanoparticles (NPs) synthesis is a current discuss in material science and nanotechnology, which is quick, simple, cost-effective, and environmentally friendly. This study aims at the biogenic zinc oxide nanoparticles synthesis (ZnONPs) using Cassia Javanica leaf extracts and Analyzing its antibacterial properties activities; Zones of Inhibition (ZI) and Minimum Inhibitory Concentration (MIC) on Salmonella, Candida, Escherichia coli, Staphylococcus, and Pseudomonas aeruginosa. The ZnONPs were characterized using a UV-Vis spectrophotometer, XRD, FTIR, EDX, and SEM. The FTIR shows that the metal oxide nanoparticle wavenumber was at 700cm
^-1
, which was corroborated by EDX chemical mapping.XRD show spherical crystalline nanoparticles having an average size of particles of 41.85 nm. The recorded ZI values for Salmonella, Candida, Escherichia coli, Staphylococcus, and Pseudomonas aeruginosa are 32.00, 48.00, 0.00, 34.00 and 40.00 mm respectively. Also, the MIC for Salmonella, Candida, Escherichia coli, Staphylococcus, and Pseudomonas aeruginosa are 7.81, 3.90, 0.00, 31.25 and 7.81 mg/mL respectively. The findings of this study revealed the antimicrobial properties of Zinc oxide nanoparticles (ZnONPs) using Cassia Javanica leaf extract suggesting that it is a possible contender for use in biomedical applications.