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US 2006/0216813 A1Published application
Dna chip comprising a microarray made of an microelectrode system
AssigneeSiemens Aktiengesellschaft
InventorsWalter Gumbrecht, Konrad Mund, Meinrad Schienle, Roland Thewes
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Abstract
A DNA chip includes a carrier and a microarray of spots containing immobilised catcher molecules which are arranged on the carrier. Each spot contains a microelectrode system for the impedance spectroscopic detection of binding events occurring between the catcher molecules and target molecules of an analyte solution applied to the spots. The microelectrode system has a pair of polarisation electrodes in order to produce an alternating electromagnetic field and a pair of sensor electrodes for measuring a voltage drop in the analyte.
Claims18
A DNA chip, comprising:
- a carrier;
- and a microarray of spots, arranged on the carrier, containing immobilized catcher molecules, each spot containing a thin-film four pole system for the impedance-spectroscopic detection of binding events between the catcher molecules and target molecules of an analyte solution applied to the spots the thin-film four-pole system including two polarization electrodes for generating an alternating electromagnetic field and two sensor electrodes for measuring a voltage drop in the analyte.
Dependencies are inferred from the claim text.