Ultrasensitive sensor based on a piezoelectric transistor
US11150241B2 · kind B2 · utility
0Cited by
7References
13Claims
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Key dates
| Filing date | May 15, 2019 |
| Grant date | Oct 19, 2021 |
| Priority date | — |
| Expiry date | Jan 14, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10N99/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods of using and making chemical sensors include exposing a functionalized electrode to a substance to be tested. The functionalized electrode is electrically connected to a sensor having a piezoelectric element and a piezoresistive element. A voltage on the functionalized electrode controls a resistance of the piezoresistive element. A current is measured passing through the piezoresistive element. The presence of the analyte is determined based on the measured current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.