Integrated microfluidic device and methods
First Claim
1. A microfluidic device for analyzing a sample of interest comprising:
- a) a microfluidic device body, wherein the microfluidic device body comprises;
i) a sample preparation area,ii) a non-actuated, fixed volume nucleic acid amplification area, andiii) a plurality of fluid channels interconnected in a network,and wherein each of the sample preparation area and the nucleic acid amplification area are fluidly interconnected to the other area by at least one of the plurality of fluid channels in the network, characterized in that the device body further comprises;
a single, non-elastomeric substrate layer having upper and lower surfaces, and having one or more microfeatures in the upper surface thereof; and
a single, non-elastomeric membrane layer contacting and joined with the upper surface of the substrate and disposed over the one or more microfeatures to form a diaphragm valve, having a relaxed state wherein the non-elastomeric membrane lies substantially against the upper surface of the substrate and an actuated state wherein the membrane is moved away from the upper surface of the substrate,further wherein the device is a two-layer device consisting of the substrate layer and the membrane layer.
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Accused Products
Abstract
A microfluidic device for analyzing a sample of interest is provided. The microfluidic device can comprise a microfluidic device body, wherein the microfluidic device body comprises a sample preparation area, a nucleic acid amplification area, a nucleic acid analysis area, and a network of fluid channels. Each of the sample preparation area, the nucleic acid amplification area and the nucleic acid analysis area are fluidly interconnected to at least one of the other two areas by at least one of the fluid channels. Using the microfluidic device, sample preparation can be combined with amplification of a biologically active molecule, and a suitable biological sample can be provided for analysis and/or detection of a molecule of interest. The small-scale apparatus and methods provided are easier, faster, less expensive, and equally efficacious compared to larger scale equipment for the preparation and analysis of a biological sample.
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Citations
36 Claims
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1. A microfluidic device for analyzing a sample of interest comprising:
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a) a microfluidic device body, wherein the microfluidic device body comprises; i) a sample preparation area, ii) a non-actuated, fixed volume nucleic acid amplification area, and iii) a plurality of fluid channels interconnected in a network, and wherein each of the sample preparation area and the nucleic acid amplification area are fluidly interconnected to the other area by at least one of the plurality of fluid channels in the network, characterized in that the device body further comprises; a single, non-elastomeric substrate layer having upper and lower surfaces, and having one or more microfeatures in the upper surface thereof; and a single, non-elastomeric membrane layer contacting and joined with the upper surface of the substrate and disposed over the one or more microfeatures to form a diaphragm valve, having a relaxed state wherein the non-elastomeric membrane lies substantially against the upper surface of the substrate and an actuated state wherein the membrane is moved away from the upper surface of the substrate, further wherein the device is a two-layer device consisting of the substrate layer and the membrane layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification