Multiple chemically modulated capacitance determination
November 17, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesSelective chemical sensitive FET transducers Thin film electrochemical electrode and cell Method for studying enzymatic and other biochemical reactions Method of electrophotographic recording involving removal of excess developer liquid by corona treatment Integrated array of electrochemical sensors System for measuring the concentration of chemical substances Lipid membrane electroanalytical elements and method of analysis therewith Specific material detection and measuring device Patent #: 4571543 InventorsAssigneeApplicationNo. 438675 filed on 11/17/1989US Classes:435/287.1, Including measuring or testing204/400, Analysis and testing204/403.08, Lipid included in apparatus204/403.1, Enzyme included in apparatus204/403.13, And microelectrode (i.e., at least one electrode dimension is less than 500 microns)257/253Chemical (e.g., ISFET, CHEMFET)ExaminersPrimary: Jones, LarryAttorney, Agent or FirmInternational ClassC12M 001/34AbstractApparatus and methods are provided for multiple detection of analytes employing semiconductor capacitance as the signal modulated by the analyte. A plurality of semiconductor capacitors are organized for detection (at individual sites) of changes in capacitance which are related to changes in a fluid medium, where the change can be related to the presence of an analyte. Circuitry is designed to substantially maximize sensitivity.Other References
|
| ||||||||||||||
