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Photobiomolecular deposition of metallic particles and films

United States Patent

February 8, 2005
View the Complete Patent at the US Patent & Trademark Office
The method of the invention is based on the unique electron-carrying function of a photocatalytic unit such as the photosynthesis system I (PSI) reaction center of the protein-chlorophyll complex isolated from chloroplasts. The method employs a photo-biomolecular metal deposition technique for precisely controlled nucleation and growth of metallic clusters/particles, e.g., platinum, palladium, and their alloys, etc., as well as for thin-film formation above the surface of a solid substrate. The photochemically mediated technique offers numerous advantages over traditional deposition methods including quantitative atom deposition control, high energy efficiency, and mild operating condition requirements.
Hu; Zhong-Cheng (Knoxville, TN)
Ut-Battelle, LLC (Oak Ridge, TN)
10/ 369,818
February 19, 2003
STATEMENT REGARDING FEDERALLY-SPONSORED RESEARCH OR DEVELOPMENT The U.S. Government has a paid-up license in this invention and the right in limited circumstances to require thc patent owner to license others on reasonable terms as provided for by the terms of Grant No. S-90,842, awarded by the Department of Energy.