Method for controlling substance moving speed and apparatus for controlling the same
First Claim
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1. A method for regulating a flow rate of a biomolecule through a fluid flow path, comprising:
- (a) subjecting a solution comprising said biomolecule to flow through said fluid flow path having a length using an electric field provided by a pair of electrodes at opposing ends of said fluid flow path, wherein said fluid flow path includes an internal space comprising different electrode sections that substantially oppose one another along said length, wherein each of said different electrode sections includes a non-conductive film adjacent to a conductive material, which non-conductive film is in contact with said solution;
(b) changing said flow rate of said biomolecule through said fluid flow path by applying a positive or negative voltage to said different electrode sections; and
(c) detecting said biomolecule or a portion thereof upon changing said flow rate of said biomolecule through said fluid flow path.
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Abstract
The present invention provides a method and apparatus for controlling the moving speed of a substance, both of which can adjust the moving speed of a substance to a desired speed. The control method and control apparatus cause a substance to pass through an internal space, in which an electro-osmotic flow is generated, of a surround electrode formed so as to surround part of the moving path of the substance, whereby the control method and control apparatus change the moving speed of the substance.
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Citations
29 Claims
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1. A method for regulating a flow rate of a biomolecule through a fluid flow path, comprising:
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(a) subjecting a solution comprising said biomolecule to flow through said fluid flow path having a length using an electric field provided by a pair of electrodes at opposing ends of said fluid flow path, wherein said fluid flow path includes an internal space comprising different electrode sections that substantially oppose one another along said length, wherein each of said different electrode sections includes a non-conductive film adjacent to a conductive material, which non-conductive film is in contact with said solution; (b) changing said flow rate of said biomolecule through said fluid flow path by applying a positive or negative voltage to said different electrode sections; and (c) detecting said biomolecule or a portion thereof upon changing said flow rate of said biomolecule through said fluid flow path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A system for regulating a flow rate of a biomolecule through a fluid flow path, comprising:
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(a) a pair of electrodes that provide an electric field to subject a solution comprising said biomolecule to flow; (b) a fluid flow path having a length and with a cross-section that is sufficient to permit said solution having said biomolecule to flow therethrough, wherein said pair of electrodes is at opposing ends of said fluid flow path, and wherein said fluid flow path includes an internal space comprising different electrode sections that substantially oppose one another along said length, wherein each of said different electrode sections includes a non-conductive film adjacent to a conductive material, which non-conductive film is in contact with said solution; (c) a voltage application member that applies a positive or negative voltage to said different electrode sections to change said flow rate of said biomolecule through said fluid flow path; and (d) a detector that detects said biomolecule or a portion thereof upon changing said flow rate of said biomolecule through said fluid flow path. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification