Silica nanoparticles
US5580655A · kind A · utility
61Cited by
4References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 3, 1995 |
| Grant date | Dec 3, 1996 |
| Priority date | — |
| Expiry date | Mar 3, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2982
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A web-like nanoparticle silica is produced by laser vaporization of silicon metal in a helium/oxygen atmosphere in a diffusion cloud chamber where it aggregates into novel web-like microstructures. The aggregates are porous and have a surface area greater than 300 m.sup.2 /g. Bright blue photoluminescence from the web-like nanoparticle silica is observed upon irradiation with ultraviolet light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.