Method and apparatus for controlling cross contamination of microfluid channels
US6994826B1 · kind B1 · utility
26Cited by
12References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2000 |
| Grant date | Feb 7, 2006 |
| Priority date | — |
| Expiry date | Apr 15, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01L2400/086
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A method for controlling fluid flow at junctions in microchannel systems. Control of fluid flow is accomplished generally by providing increased resistance to electric-field and pressure-driven flow in the form of regions of reduced effective cross-sectional area within the microchannels and proximate a channel junction. By controlling these flows in the region of a microchannel junction it is possible to eliminate sample dispersion and cross contamination and inject well-defined volumes of fluid from one channel to another.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.