Microfluidic sample separation device
First Claim
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1. A microfluidic device for separating an analyte from a sample fluid comprising:
- (a) a microfabricated flow channel comprising;
(i) an inlet for introducing a material into said flow channel;
(ii) an outlet for removing the material from said flow channel;
(iii) a chromatography column portion located within said flow channel and in between the inlet and the outlet, and (iv) a solid stationary phase within at least a portion of said chromatography column portion, wherein said solid stationary phase is capable of separating at least a portion of an analyte from a sample fluid; and
(b) a flow control system for regulating fluid flow through said flow channel.
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Abstract
The present invention provides microfluidic chromatography devices for separating an analyte from a sample solution, and methods for producing and using the same. In particular, the present invention relates to microfluidic devices which comprise a microfabricated flow channel and a material delivery system for transporting a material through the flow channel. The flow channel comprises a chromatography column portion having a solid stationary phase which is capable of separating at least a portion of the analyte from the sample solution.
198 Citations
24 Claims
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1. A microfluidic device for separating an analyte from a sample fluid comprising:
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(a) a microfabricated flow channel comprising;
(i) an inlet for introducing a material into said flow channel;
(ii) an outlet for removing the material from said flow channel;
(iii) a chromatography column portion located within said flow channel and in between the inlet and the outlet, and (iv) a solid stationary phase within at least a portion of said chromatography column portion, wherein said solid stationary phase is capable of separating at least a portion of an analyte from a sample fluid; and
(b) a flow control system for regulating fluid flow through said flow channel. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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14. A method for separating an analyte from a sample solution, said method comprising the steps of:
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(a) introducing a sample solution into a microfluidic device comprising;
(i) a microfabricated flow channel comprising;
(A) an inlet for introducing a material into said flow channel;
(B) an outlet for removing the material from said flow channel;
(C) a chromatography column portion located within said flow channel and in between the inlet and the outlet, and (D) a solid stationary phase within at least a portion of said chromatography column portion, wherein said solid stationary phase is capable of separating at least a portion of an analyte from a sample fluid; and
(ii) a flow control system for regulating fluid flow through said flow channel; and
(b) eluting the sample solution through the chromatography column portion with an eluent using the flow control system, whereby at least a portion of the analyte is separated from the sample solution.
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Specification