BIO- SYHTHESIS OF SILVER NANOPARTICLES FROM LOBOPHORA VARIEGATE.L. AND INVITRO ANTIMICROBIAL ASSAY

In the present study Silver nanoparticles were synthesized from aqueous seaweed extract of Lobophora variegata. and characterized by UV-Vis spectroscopy, Fourier transform infrared spectroscopy (FTIR), X-Ray Diffraction (XRD), Scanning electron microscopy (SEM) and Energy Dispersive X(EDX).Characterization by the above said instrument analysis confirmed the presence, size and stability of silver nanoparticles. After characterization, the silver nanoparticle was tested at 100μg-ml, 200μg-ml, 300μg-ml and 400μg-ml concentrations to check the bactericidal activity against clinical isolates of five bacterial pathogens. We observed that, if the concentration of seaweed nanoparticle increases, the zone of inhibition also get increased in all the test five clinical bacterial pathogens against streptomycin as control and result suggested the potential use of aqueous extract seaweed synthesized silver nanoparticles against other clinical pathogens.