Marker dye band detector for gel electrophoresis using balanced light emitters
US5268568A · kind A · utility
9Cited by
3References
11Claims
0Family size
Inventor
Key dates
| Filing date | Nov 30, 1992 |
| Grant date | Dec 7, 1993 |
| Priority date | — |
| Expiry date | Nov 30, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/44721
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device for detecting the marker dye band which is used to monitor the progression of biological macromolecules in gel electrophoresis. This device mounts external to the gel box, and utilizes a single light detector and a pair of AC activated light sources. The light sources produce reflected or transmitted light signals which, when balanced at the detector, cancel. When marker dye is absent the light signals are balanced, and no signal is detected. When marker dye is present at a specific detection point within the gel, the light reflected (or transmitted) is no longer balanced and a signal is detected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.