Devices, methods and kits for sample characterization
First Claim
Patent Images
1. A system comprising:
- a) a separation channel configured to perform isoelectric focusing to separate a mixture of analytes contained therein;
b) a mobilization channel comprising a mobilization electrolyte, wherein the mobilization channel is configured to deliver the mobilization electrolyte to the separation channel, wherein the mobilization channel is distinct from the separation channel, and wherein a distal end of the mobilization channel intersects the separation channel at a single point at a distal end of the separation channel;
c) three electrodes comprising a first electrode that is in electrical contact with a proximal end of the separation channel, a second electrode that is in electrical contact with the distal end of the separation channel, and a third electrode that is in electrical contact with a proximal end of the mobilization channel; and
d) a controller configured to automatically switch the second and third electrodes between “
on”
or “
off”
states to initiate mobilization, switch the first electrode to an “
on”
state while both isoelectric focusing and mobilization of separated analytes are performed, switch the second electrode to an “
on”
state and the third electrode to an “
off”
state while isoelectric focusing is performed, and switch the second electrode to an “
off”
state and the third electrode to an “
on”
state while mobilization of separated analytes is performed.
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Accused Products
Abstract
Devices and methods for characterization of samples are provided. Samples may comprise one or more analytes. Some methods described herein include performing enrichment steps on a device. Some methods described herein include performing mobilization of analytes. Analytes may then be further processed and characterized.
136 Citations
30 Claims
-
1. A system comprising:
-
a) a separation channel configured to perform isoelectric focusing to separate a mixture of analytes contained therein; b) a mobilization channel comprising a mobilization electrolyte, wherein the mobilization channel is configured to deliver the mobilization electrolyte to the separation channel, wherein the mobilization channel is distinct from the separation channel, and wherein a distal end of the mobilization channel intersects the separation channel at a single point at a distal end of the separation channel; c) three electrodes comprising a first electrode that is in electrical contact with a proximal end of the separation channel, a second electrode that is in electrical contact with the distal end of the separation channel, and a third electrode that is in electrical contact with a proximal end of the mobilization channel; and d) a controller configured to automatically switch the second and third electrodes between “
on”
or “
off”
states to initiate mobilization, switch the first electrode to an “
on”
state while both isoelectric focusing and mobilization of separated analytes are performed, switch the second electrode to an “
on”
state and the third electrode to an “
off”
state while isoelectric focusing is performed, and switch the second electrode to an “
off”
state and the third electrode to an “
on”
state while mobilization of separated analytes is performed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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Specification