SANDHYA. A and SUVARNALATHA DEVI. P 2017. Extracellular biosynthesis and characterization of gold Nanoparticles using penicillium SPS and studies on Antimicrobial activity. International Journal of Pharma and Bio Sciences. 8, 3 (Sep. 2017), 1026–1032. DOI:https://doi.org/10.22376/ijpbs.2017.8.3.b1026-1032.