Nanoparticles for drug-delivery
US9149440B2 · kind B2 · utility
21Cited by
19References
44Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2004 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Oct 19, 2029 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K9/5192
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
This invention relates to polymeric nanoparticles useful for drug delivery with target molecules bonded to the surface of the particles and having sizes of up to 1000 nm, preferably 1 nm to 400 nm, more preferably 1 nm to 200 nm, that are dispersed homogeneously in aqueous solution. The target drug/target substance is covalently bonded to the novel polymeric nanoparticles to secure them from outer intervention in vivo or cell culture in vitro until they are exposed at the target site within the cell. This invention also relates to microemulsion polymerization techniques useful for preparing the novel nanoparticles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.