The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 07, 2014
Filed:
Sep. 29, 2005
Kia Peyvan, Seattle, WA (US);
Michael Bizak, Kirkland, WA (US);
Colin Campbell, Seattle, WA (US);
Rand William Lee, Kirkland, WA (US);
Kia Peyvan, Seattle, WA (US);
Michael Bizak, Kirkland, WA (US);
Colin Campbell, Seattle, WA (US);
Rand William Lee, Kirkland, WA (US);
Custom Array, Inc., Bothwell, WA (US);
Abstract
There is disclosed a process and apparatus for reading electrical current of electrodes on a microarray of electrodes. Those electrodes having binding events are detected by a difference in electrical current flow. Enzymes on targets catalyze the conversion of substrate to product, which is detectable by electrochemical reduction at each electrode on the microarray of electrodes. The apparatus has an integration circuit that provides a voltage output that is measured and recorded over time and used to calculate an average current flow. A potentiometer equalizes voltage at electrodes undergoing measurement compared to grounded electrodes.