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Gold nanoparticles have immense applications due to its unique properties. A simple and facile method for synthesis of gold nanoparticles was developed using leaf extracts of Ficus benghalensis (Indian Banyan). The phytoconstituents and reducing compounds present in the leaf extract reduces aqueous gold chloride rapidly to nanogold (Au°). The gold nanoparticles are biostabilized due to the plant constituents and their production is confirmed due to surface plasmon resonance (SPR) as evidenced by UV-Vis spectrophotometry. FTIR analysis confirms the presence of amino groups present due to the capping of nanoparticles by plant peptides. The even and circular size was observed by TEM. The crystalline nature was confirmed using selective area electron diffraction crystallographic experimental technique. The gold nanoparticles demonstrated potent antimicrobial activity against selected gram positive and negative bacteria.

Bioinspired Synthesis of Gold Nanoparticles Using Ficus Benghalensis (Indian Banyan) Leaf Extract