Microfluidic temperature control
First Claim
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1. A biologic test chip comprising:
- a substrate;
a microfluidic channel structure on the substrate;
a first resistive structure on the substrate to selectively heat the substrate and to selectively sense a temperature of the substrate to control the temperature of at least the substrate, wherein the first resistive structure is separate from and independent of the microfluidic channel structure;
wherein the first resistive structure comprises a plurality of first resistive structures, and wherein a first one of the first resistive structures has a shape and size generally corresponding to a shape and size of a periphery of the substrate, andwherein a second one of the first resistive structures has a shape and size generally dissimilar to the shape and size of the periphery of the substrate and is electrically independent from the first one of the first resistive structures.
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Abstract
A device includes a microfluidic channel structure on a substrate and a first resistive structure on the substrate to control the temperature of at least the substrate. The first resistive structure is separate from, and independent of the, microfluidic channel structure. In some instances, the device includes a second resistive structure.
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Citations
14 Claims
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1. A biologic test chip comprising:
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a substrate; a microfluidic channel structure on the substrate; a first resistive structure on the substrate to selectively heat the substrate and to selectively sense a temperature of the substrate to control the temperature of at least the substrate, wherein the first resistive structure is separate from and independent of the microfluidic channel structure; wherein the first resistive structure comprises a plurality of first resistive structures, and wherein a first one of the first resistive structures has a shape and size generally corresponding to a shape and size of a periphery of the substrate, and wherein a second one of the first resistive structures has a shape and size generally dissimilar to the shape and size of the periphery of the substrate and is electrically independent from the first one of the first resistive structures. - View Dependent Claims (2, 3, 4, 5)
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6. A biologic microfluidic device comprising:
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a substrate; a microfluidic channel structure on the substrate; a non-transitory computer-readable medium including instructions operable by a controller; a plurality of first resistive structures on the substrate separate from and independent of the microfluidic channel structure, wherein the instructions are to operate the first resistive structures to selectively heat the substrate and to selectively sense a temperature of the substrate at a location of each first resistive structure; a plurality of second resistive structures located in the microfluidic channel structure and electrically independent from the first resistive structures, wherein the instructions are to operate at least some of the second resistive structures to selectively pump fluid and apply heat to the fluid within the microfluidic channel structure without pumping the fluid, wherein the temperatures sensed via at least some of the first resistive structures provide a feedback loop to at least partially determine whether heat is to be selectively applied to the substrate via at least one of the first resistive structures and at least some of the second resistive structures. - View Dependent Claims (7, 8, 9)
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10. A biologic microfluidic system comprising:
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a controller; a biologic microfluidic device comprising; a substrate; a microfluidic channel structure on the substrate; a first resistive array on the substrate separate from and independent of the microfluidic channel structure, wherein the controller is configured to operate the first resistive array to selectively heat the substrate and to selectively sense localized temperatures of the substrate at spaced apart locations on the substrate; a second resistive array located within the microfluidic channel structure, wherein the controller is configured to operate the second resistive array to selectively pump fluid and apply heat without pumping fluid, the second resistive array being electrically independent from the first resistive array; an input/output module to communicate a sensed localized temperature of the localized temperatures to the controller for determination of the selective application of heat via at least one of the first resistive array and the second resistive array to achieve a selectively variable temperature protocol in at least one reaction process within the microfluidic channel structure. - View Dependent Claims (11, 12, 13, 14)
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Specification