This report provides for the first time rapid novel environment friendly cell surface based synthesis of stable gold nano prisms at room temperature using Penicillium citrinum MTCC9999 biomass. The UV-Visible spectral scan of dis persed gold nanoparticles (GNP s ) solution showed absorption maxima at 540 nm d ue to surface plasma resonance (SPR ) of gold nanoparticles. Typical Transmission Electron Microscopic (TEM) images showed that most of them were prism (55%) shaped with a diameter ranging from 20 - 40 nm. These results obtained from TEM correlated well with the data obtained from Dynamic Light Scattering (DLS) experiment. Average zeta potential of GNPs was -20 mV suggesting some biomolecules capped the nanoparticles imparting a net negative charge over it. FTIR analysis also showed that protein molecules were involved in stabilization.
KeywordsGold NanoprismGreen Synthesis<i>Penicillium citrinum</i>Transmission Electron Microscopy (TEM)Zeta PotentialFourier Transformed Infra Red Spectroscopy (FTIR)
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