Nucleic acid amplification using microfluidic devices
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C12Q-001/68
C12P-019/34
C12M-003/00
출원번호
US-0947774
(2010-11-16)
등록번호
US-8486636
(2013-07-16)
발명자
/ 주소
Enzelberger, Markus M.
Liu, Jian
Quake, Stephen R.
출원인 / 주소
California Institute of Technology
대리인 / 주소
Kilpatrick Townsend & Stockton LLP
인용정보
피인용 횟수 :
1인용 특허 :
250
초록▼
The present invention provides microfluidic devices and methods using the same in various types of thermal cycling reactions. Certain devices include a rotary microfluidic channel and a plurality of temperature regions at different locations along the rotary microfluidic channel at which temperature
The present invention provides microfluidic devices and methods using the same in various types of thermal cycling reactions. Certain 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.
대표청구항▼
1. A microfluidic device, comprising: (a) a substrate; (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 b
1. A microfluidic device, comprising: (a) a substrate; (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. 2. The microfluidic device of claim 1, wherein the flow channel is substantially circular. 3. The microfluidic device of claim 2, wherein at least one of the temperature regions differs in length from the other temperature regions. 4. The microfluidic device of claim 1, further comprising a plurality of reaction chambers disposed along the flow channel and in fluid communication therewith, and wherein each reaction chamber is located within one of the temperature regions. 5. The microfluidic device of claim 1, further comprising an outlet that is in fluid communication with one of the plurality of reaction chambers, and wherein the inlet is in fluid communication with one of the plurality of reaction chambers. 6. The microfluidic device of claim 1, wherein the temperature controller is selected from the group consisting of a Peltier device, a resistive heater, a heat exchanger and an indium tin oxide element. 7. The microfluidic device of claim 1, wherein a single temperature controller regulates temperature at all of the temperature regions. 8. The microfluidic device of claim 1, wherein the temperature controller is one of a plurality of temperature controllers, each temperature controller separately regulating temperature at a different temperature region. 9. The microfluidic device of claim 8, wherein there are at least three temperature regions. 10. A method for conducting an analysis, the method comprising: (a) providing a microfluidic device, comprising (i) a substrate; (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. 11. The method of claim 10, wherein the flow channel is substantially circular. 12. The method of claim 10, wherein the microfluidic device further comprises a plurality of reaction chambers disposed along the flow channel and in fluid communication therewith, and wherein each reaction chamber is located within one of the temperature regions; and the transporting step comprises repeatedly transporting the sample through the plurality of reaction chambers. 13. The method of claim 10, wherein the sample is transported through at least three temperature regions, each at a different temperature. 14. The method of claim 10, wherein the sample comprises a target nucleic acid and the introducing step comprises introducing one or more components for conducting a nucleic acid amplification reaction. 15. The method of claim 14, wherein the sample and the one or more components are repeatedly transported through the flow channel, whereby the sample and the one or more components are exposed to the temperature regions multiple times and an amplified product is formed. 16. The method of claim 15, further comprising detecting the amplified product. 17. The method of claim 10, wherein a polymerase enzyme is immobilized within one or more of the temperature regions, whereby during transport the sample and the one or more components are brought into contact with the immobilized polymerase. 18. The method of claim 10, wherein one or more nucleic acids are immobilized in the flow channel within one or more of the temperature regions, such that when the sample is transported through the temperature regions the sample and the one or more components are brought into contact with the one or more nucleic acids. 19. The method of claim 10, wherein the sample comprises a target nucleic acid and the introducing step comprises introducing one or more components for conducting a sequencing reaction.
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