Glucose sensitive FET sensor and method of making same
US5543024A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 1990 |
| Grant date | Aug 6, 1996 |
| Priority date | — |
| Expiry date | Sep 25, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S436/806
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A glucose sensitive FET sensor is provided which includes a substrate, a source electrode formed in the substrate, a drain electrode formed in the substrate, a hydrogen ion sensitive film formed on the substrate to cover the source electrode and the drain electrode, and a thin enzyme immobilized membrane formed on the hydrogen ion sensitive film and containing glucose oxidase and gluconolactonase. Also provided is a method of producing a glucose sensitive FET sensor which includes the steps of preparing an enzyme immobilized membrane as a thin film containing glucose oxidase and gluconolactonase and forming the membrane on a hydrogen ion sensitive film which is formed on a substrate to cover a source electrode and a drain electrode, both of which are formed in the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.