Aerosol method for nano silver-silica composite anti-microbial agent
US8246933B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 2008 |
| Grant date | Aug 21, 2012 |
| Priority date | — |
| Expiry date | Nov 10, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61P31/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A method of forming and resulting nano-structured composite includes atomizing a mixture of an amount of each of aminopropyltriethoxysilane, AgNO3, 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 800° 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.