Microchip based enzymatic analysis
First Claim
1. A method for the detection of cell contents, the method comprising the steps of:
- introducing a stream of multiple cells into a channel in a microchip;
individually isolating a cell from the stream of multiple cells in a lysing zone and lysing the cell in the lysing zone to release enzymes into the channel;
reacting the enzymes with a substrate to yield a reaction product;
moving the reaction product towards a detection zone; and
detecting the reaction product at the detection zone.
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Abstract
A method for the detection of cell contents, the method comprising the steps of, introducing a cell into a channel in a microchip; lysing the cell to release cell contents into the channel; moving the cell contents towards a detection zone; and detecting the cell contents at the detection zone. An apparatus for the detection of cell contents, the apparatus comprising: a microchip; a cell mobilization channel formed in the microchip, the cell mobilization channel having a cell introduction end and a detection end; a cell mobilizer operably connected with the cell introduction end for moving cells from the cell introduction end to the detection end; means for lysing cells in the cell mobilization channel at a lysing zone, the lysing zone being located between the cell introduction end and the detection end; and a detector, disposed adjacent the detector end, arranged to detect cell contents appearing at the detector end that have been moved from the lysing zone to the detector end by the cell mobilizer.
30 Citations
24 Claims
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1. A method for the detection of cell contents, the method comprising the steps of:
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introducing a stream of multiple cells into a channel in a microchip;
individually isolating a cell from the stream of multiple cells in a lysing zone and lysing the cell in the lysing zone to release enzymes into the channel;
reacting the enzymes with a substrate to yield a reaction product;
moving the reaction product towards a detection zone; and
detecting the reaction product at the detection zone. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for the detection of cell contents, the method comprising the steps of:
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introducing a stream of multiple cells into a channel in a microchip;
individually isolating a cell from the stream of multiple cells in a lysing zone and lysing the cell by application of an electric field across the cell in the lysing zone to release cell contents into the channel;
moving the cell contents towards a detection zone; and
detecting the cell contents at the detection zone. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A method for the detection of cell contents, the method comprising the steps of:
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introducing a stream of multiple cells into a channel in a microchip;
individually isolating a cell from the stream of multiple cells in a lysing zone and lysing the cell to release cell contents into the channel at the lysing zone;
reacting the cell contents with a substrate at a reaction zone downstream of the lysing zone to yield a reaction product;
moving the reaction product towards a detection zone; and
detecting the reaction product at the detection zone. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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24. A method for the detection of cell contents, the method comprising the steps of:
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introducing a stream of multiple cells into a channel in a microchip;
individually isolating a cell from the stream of multiple cells in a lysing zone and lysing the cell by application of an electric field across the cell in the lysing zone to release cell contents into the channel;
reacting the cell contents with a substrate to create reaction products;
moving the reaction products towards a detection zone; and
detecting the reaction products at the detection zone.
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Specification