Electrochemical detection of nucleic acid sequences
First Claim
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1. A battery or AC-powered portable biosensor apparatus comprising:
- a circuit board with a plurality of working and reference electrodes formedthereon;
a plurality of nucleic acid segments attached to the surface of said plurality of working electrodes that capture nucleic acid targets by hybridization; and
a monitor for measuring a current produced following hybridization of targets with the nucleic acid segments, said monitor being operably connected so that it controls the electrical potential of the electrodes and records, analyzes and displays the currents generated at the individual electrodes.
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Abstract
An electrochemical detection system which specifically detects selected nucleic acid segments is described. The system utilizes biological probes such as nucleic acid or peptide nucleic acid probes which are complementary to and specifically hybridize with selected nucleic acid segments in order to generate a measurable current when an amperometric potential is applied. The electrochemical signal can be quantified.
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Citations
14 Claims
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1. A battery or AC-powered portable biosensor apparatus comprising:
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a circuit board with a plurality of working and reference electrodes formed thereon; a plurality of nucleic acid segments attached to the surface of said plurality of working electrodes that capture nucleic acid targets by hybridization; and a monitor for measuring a current produced following hybridization of targets with the nucleic acid segments, said monitor being operably connected so that it controls the electrical potential of the electrodes and records, analyzes and displays the currents generated at the individual electrodes. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A battery or AC-powered portable biosensor apparatus comprising:
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a circuit board with a plurality of working and reference electrodes formed thereon; a plurality of nucleic acid segments attached to the surface of said plurality of working electrodes that capture nucleic acid targets by hybridization, wherein each hybrid formed has one or more labels attached that catalytically enhance the current generated following hybridization; and a monitor for measuring the currents produced following hybridization of targets with the nucleic acid segments, said monitor being operably connected so that it controls the electrical potential of the electrodes and records, analyzes and displays the currents generated at the individual electrodes. - View Dependent Claims (14)
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Specification