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The development of an eco-friendly process for the synthesis of nanoplatinum using microorganisms is gaining importance in the field of nanotechnology. Here, nanoplatinum has been synthesized by the fungal culture filtrate of Alternaria alternata. The platinum nanoparticles were characterized by different spectroscopic analyses. EDX spectrum revealed the presence of platinum in the nanoparticles. FTIR spectroscopy confirmed the presence of a protein shell outside the nanoparticles, which in turn also support their stabilization. DLS and TEM analysis indicated that the nanoparticles ranged in size from 50 to 315 nm. This proposed mechanistic principle might serve for the large-scale commercial production of platinum nanoparticles.
Sarkar et al. (Fri,) studied this question.