Device and method for the manipulation of a fluid sample
First Claim
1. A method for separating target material from other material in a fluid sample, the method comprising the steps of:
- a) forcing the fluid sample to flow through a separation device, the separation device comprising a substrate and a plurality of structures on the substrate, each of the structures being coated with an electrical insulator film;
b) applying a voltage to the structures while the sample flows through the device, thereby attracting the target material to the insulator film while the other material passes through the device; and
c) eluting the target material from the device.
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Abstract
The invention provides a device and method for the manipulation of materials (e.g., particles, cells, macromolecules, such as proteins, nucleic acids or other moieties) in a fluid sample. The device comprises a substrate having a plurality of microstructures and an insulator film on the structures. Application of a voltage to the structures induces separation of materials in the sample. The device and method are useful for a wide variety of applications such as dielectrophoresis (DEP) or the separation of a target material from other material in a fluid sample.
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Citations
72 Claims
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1. A method for separating target material from other material in a fluid sample, the method comprising the steps of:
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a) forcing the fluid sample to flow through a separation device, the separation device comprising a substrate and a plurality of structures on the substrate, each of the structures being coated with an electrical insulator film;
b) applying a voltage to the structures while the sample flows through the device, thereby attracting the target material to the insulator film while the other material passes through the device; and
c) eluting the target material from the device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16, 17, 18, 19, 20, 21)
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14. A device for separating target material from other material in a fluid sample, the device comprising:
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a) a base substrate;
b) a plurality of structures on the base substrate, each of the structures being coated with an insulator film;
c) a second substrate covering the structures to form an enclosed region between the base and second substrates;
d) at least one port, formed in either of the substrates, for entry of fluid into and exit of fluid from the enclosed region; and
e) means for applying a voltage to the structures, the voltage inducing movement of the target material in the fluid sample to or from the insulator film.
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22. A device for separating materials in a fluid sample, the device comprising:
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a) a substrate;
b) a plurality of three-dimensional structures on the substrate, each of the structures having a height of at least 20 μ
m; and
c) means for applying a voltage to the structures to induce separation of materials in the fluid sample as the sample flows between the structures. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A method for separating materials in a fluid sample, the method comprising the steps of:
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a) introducing the fluid sample into a device having an array of three-dimensional structures, each of the structures having a height of at least 20 μ
m; and
b) forcing the fluid sample to flow between the structures while applying a voltage to the structures, thereby inducing separation of materials in the fluid sample as the sample flows between the structures. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 47, 48, 49, 50, 51, 52)
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46. An extraction device for separating target material from other material in a fluid sample, the device comprising:
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a) a body defining a chamber having at least one inlet port and at least one outlet port and having a plurality of electrically conductive structures, each of the structures being coated with an insulator film having a thickness in the range of 0.01 to 10 μ
m; and
b) means for applying a voltage to the structures to induce movement of the target material in the fluid sample to or from the surface of the insulator film.
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53. A method for separating target material from other material in a fluid sample, the method comprising the steps of:
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a) contacting the sample with an electronic extractor having an insulator film and an underlying conductor in contact therewith, the insulator film having a thickness in the range of 0.01 to 10 μ
m; and
b) applying a voltage to the conductor, thereby inducing movement of target material in the fluid sample to or from the surface of the insulator film. - View Dependent Claims (54, 55, 56, 57, 58, 59, 60, 61, 62, 63)
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64. A device for performing dielectrophoresis to separate target material from other material in a fluid sample, the device comprising:
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a) a base substrate;
b) a plurality of electrically conductive structures on the base substrate, each of the structures being coated with an electrical insulator film;
c) channels disposed between the structures for flow of the fluid sample between the structures; and
d) means for applying a voltage to the structures as the fluid sample flows through the channels to induce separation of the target material from the other material in the sample. - View Dependent Claims (65, 66, 67, 68, 69, 70, 71, 72)
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Specification