Uniform bead dosing from a stable dispersion
US7081366B2 · kind B2 · utility
1Cited by
5References
2Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 2, 2003 |
| Grant date | Jul 25, 2006 |
| Priority date | — |
| Expiry date | Jan 18, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/24
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A primary antibody bead suspension for an enzyme-linked immunoassay (“ELISA”) procedure is formed of a quantity of primary antibody coated magnetic beads (3) uniformly dispersed and held in suspension (9) by a thixotropic non-Newtonian fluid (1). To remove the thixotropic non-Newtonian fluid prior to application in the ELISA procedure, a magnet (12) is placed against the side of the non-magnetic vessel (9) holding the suspension to draw the magnetic beads against the side while the thixotropic fluid is washed away by pumping (14,16,15& 17) and replaced by a saline buffer solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.