Biochannel assay for hybridization with biomaterial
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C12M-003/00
출원번호
US-0028277
(2001-12-19)
발명자
/ 주소
Shieh, Chan-Long
Foley, Barbara
Yu, Huinan
Choong, Vi-En
출원인 / 주소
Clinical Micro Sensors, Inc.
대리인 / 주소
Dorsey &
인용정보
피인용 횟수 :
29인용 특허 :
115
초록▼
The invention relates to a microfluidic device with microchannels that have separated regions which have a member of a specific binding pair member such as DNA or RNA bound to porous polymer, beads or structures fabricated into the microchannel. The microchannels of the invention are fabricated from
The invention relates to a microfluidic device with microchannels that have separated regions which have a member of a specific binding pair member such as DNA or RNA bound to porous polymer, beads or structures fabricated into the microchannel. The microchannels of the invention are fabricated from plastic and are operatively associated with a fluid propelling component and detector.
대표청구항▼
1. A microfluidic device comprising:(i) a first microchannel comprising a plurality of spatially distinct regions upon which a member of a specific binding pair is immobilized; (ii) at least a first entrance port and at least a first exit port for the transportation of at least one test sample; (iii
1. A microfluidic device comprising:(i) a first microchannel comprising a plurality of spatially distinct regions upon which a member of a specific binding pair is immobilized; (ii) at least a first entrance port and at least a first exit port for the transportation of at least one test sample; (iii) a fluid propelling component that controls that flow rate of said test sample; and (iv) a recirculating arm for recirculating said test sample across a spatially distinct regions. 2. A microfluidic device according to claim 1, wherein said first microchannel is serpentine.3. A microfluidic device according to claim 1, further comprising at least one valve in said exit port.4. A microfluidic device according to claim 1, wherein said first microchannel branches into multiple second microfluidic channels each of which comprises a plurality of spatially distinct regions upon which a member of a specific binding pair is immobilized.5. A microfluidic device according to claim 1 or 4, wherein said device is fabricated from a material selected from the group consisting of silicon, silicon dioxide, glass, plastic and ceramic.6. A microfluidic device according to claim 1, where in said spatially distinct regions comprise porous polymers.7. A microfluidic device according to claim 6, wherein said porous polymer is a a hydrogel pad.8. A microfluidic device according to claim 7, wherein said hydrogel pad is a patterned gel pad further comprising spatially separated portions within said hydrogel pad.9. A microfluidic device according to claim 1, wherein each of said spatially distinct regions has a different member of a specific binding pair immobilized thereto.10. A microfluidic device according to claim 1, wherein said spatially distinct regions in said microchannel comprise beads with said member of said specific binding pair immobilized thereto.11. A microfluidic device according to claim 1, wherein said spatially distinct regions comprise microstructures fabricated into said microchannel.12. A microfluidic device according to claim 1, wherein said microstructures comprise a series of columns molded into said first microchannel.13. A microfluidic device according to claim 1, wherein said microstructures comprise domes molded into said first microchannel.14. A microfluidic device according to claim 1, wherein said specific binding pair members are nucleic acids.15. A microfluidic device according to claim 14, wherein said nucleic acid is a DNA.16. A microfluidic device according to claim 14, wherein said nucleic acid is a RNA.17. A microfluidic device according to claim 1, wherein said specific binding pair members are proteins.18. A microfluidic device according to claim 17, wherein the proteins for one member of said specific binding pair are antigens.19. A microfluidic device according to claim 17, wherein the proteins for one member of said specific binding pair are antibodies.20. A microfluidic device according to claim 1, wherein said fluid propelling component comprises a pressurized gas, a vacuum, an electrical field, a magnetic field or a centrifugal force.21. A method of detecting a specific binding member in a test sample, said method comprising passing said test sample through the microfluidic device described in claim 1, 2, or 4, to form a binding pair and detecting said binding pair.22. A method according to claim 21, wherein said test sample is recirculated.23. A method according to claim 21, wherein the flow rate of said test sample is adjusted using a fluid propelling component to increase contact between said binding pairs.24. A method according to claim 21, wherein said fluid propelling component comprises a pressurized gas, a vacuum, an electrical field, a magnetic field or a centrifugal force.
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