Aerosol method for nano silver-silica composite anti-microbial agent

Patent Number: 8,246,933
Issued: 8/21/2012
Official Filing: View the Complete Patent
Abstract: A method of forming and resulting nano-structured composite includes atomizing a mixture of an amount of each of aminopropyltriethoxysilane, AgNO.sub.3, DI water, and ethanol in a carrier gas; heating the atomized droplets at a selected temperature for a time sufficient to reduce the Ag to its elemental form in a silica matrix; and outputting the nano structured composite particles. A predetermined heating time is from about 0.01 to about 40 seconds and a selected heating temperature is from about 200 to about C. The nano structured composite includes a plurality of nano particles at a contact surface of the composite, dispersed throughout and at a contact surface of the composite, or dispersed throughout the composite.
Filed: 11/26/2008
Application Number: 12/324,318
Government Interests: STATEMENT OF GOVERNMENT INTEREST This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention.