Abstract
Green synthesis of silver nanoparticles were carried out using the aqueous leaf extracts of Thespesia populnea and characterised by UV Vis spectroscopy, SEM, EDX, AFM and XRD analysis. The silver nanoparticles when tested on Pseudomonas aeruginosa and Bacillus subtilis, was found to have potent antibacterial activity. Further, the microbes were susceptible for a minimum inhibitory concentration of 0.5 µg and also arrested the swarming motility of the test organisms. The nanoparticles interacted with the microbial membrane which led to the leakage of proteins from the cells.
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