Method of making stably preserved microspheres in lower alcohol solvent
US7604838B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Jul 3, 2008 |
| Grant date | Oct 20, 2009 |
| Priority date | — |
| Expiry date | Jul 3, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/54393
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Active carboxylic acid ester groups are coupled on the surfaces of microspheres so as to reduce protocols for microsphere processing, control side reactions, and stably preserve beads containing active carboxylic acid ester groups. Further, microspheres labeled with at least one fluorescent dye cage in the microspheres, and the microspheres are preserved in lower alcohol.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.