Colloidal sized metal-polysaccharide particles
US4744760A · kind A · utility
31Cited by
0References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 14, 1985 |
| Grant date | May 17, 1988 |
| Priority date | — |
| Expiry date | Jan 14, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2474/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Colloidal sized particles comprising metal particle coated with a water soluble polysaccharide derivative. The derivative is such that when it is not coating the metal, it has at least one, and preferably a number, of pendant functional groups each of which has a positive charge in aqueous solution. The metal is preferably selected from the group consisting of gold, platinum, and silver, whereas the polysaccharide may usefully be selected from the group consisting of dextran and mannan. The particles can be used as markers for biologically active molecules, or for separating different types of such molecules.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.