Binding acceleration techniques for the detection of analytes
First Claim
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1. A device comprising a substrate comprising:
- a) a first surface comprising;
i) an array of detection electrodes each comprising a covalently attached capture ligand;
ii) at least a first electrophoresis electrode;
b) a second surface comprising at least a second electrophoresis electrode; and
c) at least one channel connecting said first surface and second surface.
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Abstract
The invention relates to compositions and methods useful in the acceleration of binding of target analytes to capture ligands on surfaces. Detection proceeds through the use of an electron transfer moiety (ETM) that is associated with the target analyte, either directly or indirectly, to allow electronic detection of the ETM.
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Citations
32 Claims
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1. A device comprising a substrate comprising:
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a) a first surface comprising; i) an array of detection electrodes each comprising a covalently attached capture ligand; ii) at least a first electrophoresis electrode; b) a second surface comprising at least a second electrophoresis electrode; and c) at least one channel connecting said first surface and second surface. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A device comprising a detection chamber comprising:
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a) a first subchamber comprising an array of detection electrodes each comprising a covalently attached capture ligand; b) a second subchamber comprising an absorbent material; and c) a substrate comprising; i) a first surface in contact with said array of detection electrodes; ii) a second surface in contact with said absorbent material; iii) at least one channel connecting said first surface and said second surface; and iv) a size exclusion partition at either end of said at least one channel. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of detecting a target analyte in a sample comprising:
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a) concentrating said target analyte in a detection chamber comprising; i) a first surface comprising; 1) an array of detection electrodes each comprising a covalently attached capture ligand; 2) at least a first electrophoresis electrode; ii) a second surface comprising at least a second electrophoresis electrode; and iii) at least one channel connecting said first surface and second surface; b) binding said target analyte to said capture ligand to form an assay complex, wherein said assay complex further comprises at least one electron transfer moiety (ETM); and c) detecting the presence of said ETM using said detection electrode. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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25. A method of detecting a target analyte in a sample comprising:
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a) concentrating said target analyte in a detection chamber comprising; i) a substrate comprising; 1) a first surface comprising; A) an array of detection electrodes each comprising a covalently attached capture ligand; 2) a second surface; 3) at least one channel connecting said first surface and second surface; and ii) an absorbent material in contact with said second surface; b) binding said target analyte to said capture ligand to form an assay complex, wherein said assay complex further comprises at least one electron transfer moiety (ETM); and c) detecting the presence of said ETM using said detection electrode. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32)
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Specification