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Microbial-mediated method for metal oxide nanoparticle formation

United States Patent

September 8, 2015
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
The invention is directed to a method for producing metal oxide nanoparticles, the method comprising: (i) subjecting a combination of reaction components to conditions conducive to microbial-mediated formation of metal oxide nanoparticles, wherein said combination of reaction components comprise: metal-reducing microbes, a culture medium suitable for sustaining said metal-reducing microbes, an effective concentration of one or more surfactants, a reducible metal oxide component containing one or more reducible metal species, and one or more electron donors that provide donatable electrons to said metal-reducing microbes during consumption of the electron donor by said metal-reducing microbes; and (ii) isolating said metal oxide nanoparticles, which contain a reduced form of said reducible metal oxide component. The invention is also directed to metal oxide nanoparticle compositions produced by the inventive method.
Rondinone; Adam J. (Knoxville, TN), Moon; Ji Won (Oak Ridge, TN), Love; Lonnie J. (Knoxville, TN), Yeary; Lucas W. (Painted Post, NY), Phelps; Tommy J. (Knoxville, TN)
12/ 357,523
January 22, 2009
This invention was made with government support under Contract Number DE-AC05-00OR22725 between the United States Department of Energy and UT-Battelle, LLC. The United States government has certain rights in this invention.