Electrochemical FET sensor
US11448612B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 2021 |
| Grant date | Sep 20, 2022 |
| Priority date | — |
| Expiry date | Oct 29, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/5438
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor includes a working electrode in contact with an analyte solution; an amplifier including: a source terminal; a drain terminal; a back gate terminal; and nanowires, each nanowire electrically connecting the source terminal to the drain terminal; and an insulator having a first side and a second side. The working electrode is positioned to the first side of the insulator. The source terminal, the drain terminal, and the nanowires are positioned to the second side of the insulator. The insulator prevents direct electrical contact between the working electrode, the analyte solution and either the source terminal, the drain terminal, or the nanowires. The working electrode is configured such that, when a chemical species is present in the analyte solution, a variation in an electrical field at a location of the nanowires is induced, inducing a corresponding variation in an electrical current between the source terminal and the drain terminal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.