Production of platinum nanoparticles and nanoaggregates using Neurospora crassa

Journal of Microbiology and Biotechnology
E Castro-LongoriaM Avalos-Borja

Abstract

Fungal biomass and fungal extract of the nonpathogenic fungus Neurospora crassa were successfully used as reducing agents for the biosynthesis of platinum nanoparticles (PtNPs). The experiment was carried out by exposing the fungal biomass or the fungal extract to a 0.001 M precursor solution of hexachloroplatinic(IV) acid (H2PtCl6). A change of color of the biomass from pale yellow to dark brown was the first indication of possible formation of PtNPs by the fungus. Subsequent analyses confirmed the intracellular biosynthesis of single PtNPs (4-35 nm in diameter) and spherical nanoaggregates (20-110 nm in diameter). Using the fungal extract, similar results were obtained, producing rounded nanoaggregates of Pt single crystals in the range of 17-76 nm.

Citations

Aug 10, 2013·Micron : the International Research and Review Journal for Microscopy·Katrin QuesterE Castro-Longoria
Sep 18, 2015·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Amin Boroumand MoghaddamRosfarizan Mohamad
Feb 26, 2016·Nanoscale Research Letters·Khwaja Salahuddin Siddiqi, Azamal Husen
Feb 28, 2016·Critical Reviews in Microbiology·Panchanathan ManivasaganJunghwan Oh
Jul 12, 2017·Chemical Society Reviews·Deborah PedonePier Paolo Pompa
Sep 24, 2021·Critical Reviews in Microbiology·Komal AgrawalPradeep Verma

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