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Fermentative process for making inorganic nanoparticles

United States Patent

June 13, 2006
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
Bacterial Production of Mixed Metal Oxide Nanoparticles
A method for producing mixed metal oxide compounds includes the steps of: providing a supply of a metal reducing bacteria; providing a culture medium suitable for growth of the bacteria; providing a first mixed metal oxide phase comprising at least a first and a second metal, at least one of the first and second metal being reducible from a higher to a lower oxidation state by the bacteria; and, combining the bacteria, the culture medium, the first mixed metal oxide, and at least one electron donor in a reactor, wherein the bacteria reduces at least one of the first metal and the second metal from the higher to the lower oxidation state to form a second mixed metal oxide phase.
Phelps; Tommy J. (Knoxville, TN), Lauf; Robert J. (Oak Ridge, TN), Moon; Ji-Won (Oak Ridge, TN), Roh; Yul (Gwangju, KR)
UT-Battelle, LLC (Oak Ridge, TN)
11/ 227,586
September 15, 2005
The United States Government has rights in this invention pursuant to contract no. DE-AC05-00OR22725 between the United States Department of Energy and UT-Battelle, LLC.