PRODUCTION OF SULFUR-FREE NANOPARTICLES BY YEAST

摘要

A method of producing sulfur-free nanoparticles involves growing yeast in a growth medium containing a source of an element in a bio-reducible oxidation state (e.g. Se (Vl)), and, precipitating nanoparticles containing the element in a lower oxidation state (e.g. Se(O)) than the oxidation state of the element in the source. The method advantageously can provide substantially spherical nanoparticles at high production efficiencies.