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Kafe 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0729462 (2010-03-23) |
등록번호 | US-8528589 (2013-09-10) |
발명자 / 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 | 피인용 횟수 : 32 인용 특허 : 422 |
The invention provides methods for assessing one or more predetermined characteristics or properties of a microfluidic droplet within a microfluidic channel, and regulating one or more fluid flow rates within that channel to selectively alter the predetermined microdroplet characteristic or property
The invention provides methods for assessing one or more predetermined characteristics or properties of a microfluidic droplet within a microfluidic channel, and regulating one or more fluid flow rates within that channel to selectively alter the predetermined microdroplet characteristic or property using a feedback control.
1. A method for manipulating microfluidic droplet pairing ratios comprising: providing a microfluidic system comprising at least one microfluidic channel;providing a first plurality of fluidic droplets within said microfluidic channel at a first frequency;providing a second plurality of fluidic drop
1. A method for manipulating microfluidic droplet pairing ratios comprising: providing a microfluidic system comprising at least one microfluidic channel;providing a first plurality of fluidic droplets within said microfluidic channel at a first frequency;providing a second plurality of fluidic droplets within said microfluidic channel at a second frequency, wherein at least one fluidic droplet from said first plurality and at least one fluidic droplet from said second plurality are paired;assessing said first frequency and said second frequency using an image sensor; andtransmitting said assessment of said first and said second frequencies to a feedback controller; wherein said feedback controller adjusts a flow rate of one or more fluids to provide a desired frequency ratio of said first to said second plurality of droplets, thereby manipulating the pairing ratios of said first and second pluralities of fluidic droplets within said microfluidic channel. 2. The method of claim 1, wherein the first plurality of fluidic droplets and the second plurality of fluidic droplets were provided at the same frequency and wherein said feedback controller adjusts a flow rate of one or more fluids to maintain said first and said second frequency at the same frequency. 3. The method of claim 1, wherein the first and second pluralities of fluidic droplets differ in size, color, refractive index, or extinction coefficient. 4. The method of claim 1, wherein the first and second pluralities of fluidic droplets contain a different biological, biochemical, or chemical entity. 5. The method of claim 1, wherein the desired frequency ratio of the first plurality of droplets to the second plurality of droplets is selected from the group consisting of 1:1, 1:2, 1:3, 1:4, 1:5, 1:6, 1:7, 1:8, 1:9, and 1:10. 6. The method of claim 5, wherein the desired frequency ratio of the first plurality of droplets to the second plurality of droplets is 1:1. 7. The method of claim 1, wherein the image sensor is a linear array sensor. 8. The method of claim 1, wherein said first plurality of fluidic droplets have a maximum cross-sectional dimension of less than about 100 microns. 9. The method of claim 1, wherein said second plurality of fluidic droplets have a maximum cross-sectional dimension of less than about 100 microns.
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