Nucleic acid amplification utilizing microfluidic devices
First Claim
1. A microfluidic device, comprising:
- (a) a substrate comprising an elastomeric material;
(b) a flow channel disposed within the substrate, the flow channel configured such that a sample introduced into the flow channel can be cycled around the flow channel; and
comprising a plurality of temperature regions at which temperature can be regulated, each temperature region located at a different location along the flow channel;
(c) an inlet in fluid communication with the flow channel via which the sample can be introduced into the flow channel; and
(d) a temperature controller operatively disposed to regulate temperature within at least one of the plurality of temperature regions.
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Abstract
The present invention provides microfluidic devices and methods using the same in various types of thermal cycling reactions. Certaom devices include a rotary microfluidic channel and a plurality of temperature regions at different locations along the rotary microfluidic channel at which temperature is regulated. Solution can be repeatedly passed through the temperature regions such that the solution is exposed to different temperatures. Other microfluidic devices include an array of reaction chambers formed by intersecting vertical and horizontal flow channels, with the ability to regulate temperature at the reaction chambers. The microfluidic devices can be used to conduct a number of different analyses, including various primer extension reactions and nucleic acid amplification reactions.
655 Citations
48 Claims
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1. A microfluidic device, comprising:
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(a) a substrate comprising an elastomeric material;
(b) a flow channel disposed within the substrate, the flow channel configured such that a sample introduced into the flow channel can be cycled around the flow channel; and
comprising a plurality of temperature regions at which temperature can be regulated, each temperature region located at a different location along the flow channel;
(c) an inlet in fluid communication with the flow channel via which the sample can be introduced into the flow channel; and
(d) a temperature controller operatively disposed to regulate temperature within at least one of the plurality of temperature regions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A microfluidic device, comprising
(a) a substantially circular microfabricated flow channel in fluid communication with an inlet; -
(b) a plurality of temperature regions, each region located at a different location along the substantially circular flow channel; and
(c) a temperature controller operatively disposed to regulate the temperature within at least one of the plurality of temperature regions.
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21. A method for conducting an analysis, the method comprising:
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(a) providing a microfluidic device, comprising (i) a substrate comprising an elastomeric material;
(ii) a flow channel disposed within the substrate, the flow channel configured such that a sample introduced into the flow channel can be cycled around the flow channel; and
comprising a plurality of temperature regions at which temperature can be regulated, each temperature region located at a different location along the flow channel;
(b) introducing a sample into the flow channel; and
(c) transporting the sample between the different temperature regions. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
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Specification