Chemistry: electrical and wave energy – Processes and products – Electrophoresis or electro-osmosis processes and electrolyte...
Patent
1997-06-18
1999-05-04
Beisner, William H.
Chemistry: electrical and wave energy
Processes and products
Electrophoresis or electro-osmosis processes and electrolyte...
204454, 204604, G01N 2726
Patent
active
059001305
ABSTRACT:
A method and device are provided for transporting a liquid sample into a third microchannel from an intersection of at least a first, a second, and a fourth microchannel, by stages. In a first stage, liquid sample is moved in and from the fourth microchannel through the intersection and into the second microchannel and concurrently carrier liquid is moved in and from the first and third microchannels through the intersection and into the second microchannel. Thereafter in a second stage, at least part of the contents of the intersection is moved into the third channel and concurrently a part of the contents of the second and fourth microchannels is moved through the intersection and into the third microchannel. Thereafter in a third stage, carrier liquid is moved from the first microchannel simultaneously through the intersection and into the second, third, and fourth microchannels. In some embodiments the liquid sample and the carrier liquid are moved electrokinetically, that is, by application of an electric field to segments of the microchannels.
REFERENCES:
patent: 4908112 (1990-03-01), Pace
patent: 5126022 (1992-06-01), Soane et al.
patent: 5250263 (1993-10-01), Manz
patent: 5599432 (1997-02-01), Manz et al.
patent: 5779868 (1998-07-01), Parce et al.
patent: 5800690 (1998-09-01), Chow et al.
Harrison et al., "Capillary Electrophoresis and Sample Injection Systems Integrated on a Planar Glass Chip," Anal. Chem, (1992), 64, pp. 1926-1932.
Jacobson et al., "Microchip Capillary Electrophoresis with an Integrated Postcolumn Reactor," Anal. Chem, (1994), 66, pp. 3472-3476.
Jacobson et al., "Effects of Injection Schemes and Column Geometry on the Performance of Microchip Electrophoresis Devices," Anal. Chem, (1994), 66, pp. 1107-1113.
Benvegnu Dominic
McCormick Randy M.
Alcara BioSciences, Inc.
Beisner William H.
LandOfFree
Method for sample injection in microchannel device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for sample injection in microchannel device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for sample injection in microchannel device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1867994