Magnetically responsive, hydrophilic microspheres for incorporation of therapeutic substances and methods of preparation thereof
US4871716A · kind A · utility
45Cited by
4References
33Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 3, 1986 |
| Grant date | Oct 3, 1989 |
| Priority date | — |
| Expiry date | Dec 3, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/24
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Novel magnetically responsive hydrophilic protein or polypeptide microspheres prepared by dispersing an aqueous solution or dispersion of protein or polypeptide and particulate magnetically responsive material in an organic solvent solution of a high molecular weight polymer to form a stabilized dispersion of microspheres and cross-linking said microspheres with a polyfunctional cross-linking agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.