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Surface modified particles by multi-step addition and process for the preparation thereof

United States Patent

January 17, 2006
View the Complete Patent at the US Patent & Trademark Office
The present invention relates to a new class of surface modified particles and to a multi-step surface modification process for the preparation of the same. The multi-step surface functionalization process involves two or more reactions to produce particles that are compatible with various host systems and/or to provide the particles with particular chemical reactivities. The initial step comprises the attachment of a small organic compound to the surface of the inorganic particle. The subsequent steps attach additional compounds to the previously attached organic compounds through organic linking groups.
Cook; Ronald Lee (Lakewood, CO), Elliott; Brian John (Superior, CO), Luebben; Silvia DeVito (Golden, CO), Myers; Andrew William (Arvada, CO), Smith; Bryan Matthew (Boulder, CO)
TDA Research, Inc. (Wheat Ridge, CO)
10/ 171,402
June 12, 2002
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made, at least in part, with funding from the National Science Foundation, Contract No. DMI-9901730, the Department of Energy, Contract No. DE-FG03-00ER82928 and the United States Navy Under Contract N68335-01-C-0176. Accordingly, the U.S. government may have certain rights in this invention.