Microfluidic device for detection of charged analytes contained in an electrolyte and a method for detecting charged analytes contained in an electrolyte
US8349159B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 24, 2009 |
| Grant date | Jan 8, 2013 |
| Priority date | — |
| Expiry date | Feb 18, 2031 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07K1/24
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
A device for selective preconcentration/detection of charged analytes contained in an electrolyte having at least two reservoirs separated by at least one rectilinear microchannel with no lengthwise axis X intersection and having at least one controllable voltage source configured to generate a potential difference between the ends of the rectilinear microchannel. The device has means for generating a controllable pressure that is associated with at least one of the reservoirs and is able to generate a pressure gradient between the two ends of the microchannel. The microchannel has, in its median part, means that are configured to generate at least one change in the surface area to volume ratio charge, the device configured to selectively concentrate the charged analytes in the median part of the microchannel upstream and/or downstream of the means configured to generate at least one change in the surface area to volume ration charge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.