Hybrid Device for On-Chip Concentration, Manipulation, Sorting and Sensing of Particles on a Plasmonic Substrate
First Claim
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1. A hybrid device for on-chip concentration of particles on a plasmonic substrate, comprising:
- a first substrate with a bottom portion coupled to a bottom portion of a microfluidic chamber that includes a fluidic medium, wherein the fluidic medium is configured to transport a plurality of particles located in the fluidic medium when an electrothermal force is generated within the fluidic medium;
a second substrate with a bottom portion coupled to a top portion of the first substrate opposing the bottom portion of the first substrate that is non-uniform to generate a thermal gradient, wherein the thermal gradient is configured to generate the electrothermal force within the fluidic medium; and
a third substrate with a bottom portion coupled to a top portion of the second substrate opposing the bottom portion of the second substrate and a top portion that includes an electrode that is configured to receive a laser beam that heats the electrode, wherein the heated electrode generates the thermal gradient in the second substrate that generates the electrothermal force within the fluidic medium to direct particles onto the plasmonic substrate.
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Abstract
The present disclosure relates generally to plasmonic substrates and specifically to high-throughput trapping of particles on a plasmonic substrate.
17 Citations
20 Claims
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1. A hybrid device for on-chip concentration of particles on a plasmonic substrate, comprising:
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a first substrate with a bottom portion coupled to a bottom portion of a microfluidic chamber that includes a fluidic medium, wherein the fluidic medium is configured to transport a plurality of particles located in the fluidic medium when an electrothermal force is generated within the fluidic medium; a second substrate with a bottom portion coupled to a top portion of the first substrate opposing the bottom portion of the first substrate that is non-uniform to generate a thermal gradient, wherein the thermal gradient is configured to generate the electrothermal force within the fluidic medium; and a third substrate with a bottom portion coupled to a top portion of the second substrate opposing the bottom portion of the second substrate and a top portion that includes an electrode that is configured to receive a laser beam that heats the electrode, wherein the heated electrode generates the thermal gradient in the second substrate that generates the electrothermal force within the fluidic medium to direct particles onto the plasmonic substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for on-chip concentration of particles on a plasmonic substrate, comprising:
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(i) coupling a bottom portion of a first substrate to a bottom portion of a fluidic chamber that includes a fluidic medium; (ii) transporting a plurality of particles located in the fluidic medium when an electrothermal force is generated within the fluidic medium; (iii) coupling a bottom portion of a second substrate to a top portion of the first substrate opposing the bottom portion of the first substrate that is non-uniform to generate a thermal gradient; (iv) generating the thermal gradient to generate the electrothermal force within the fluidic medium; (v) coupling a bottom portion of a third substrate to a top portion of the second substrate opposing the bottom portion of the second substrate, wherein a top portion of the third substrate includes an electrode; (vi) receiving a laser beam by the top portion of the third substrate that includes the electrode; and (vii) generating the thermal gradient in the second substrate from the heated electrode that generates the electrothermal force within the fluidic medium to direct particles onto the plasmonic substrate. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification