Durable enzyme-based biosensor and process for drop deposition immobilization
US12213784B2 · kind B2 · utility
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23Claims
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Key dates
| Filing date | Dec 11, 2017 |
| Grant date | Feb 4, 2025 |
| Priority date | — |
| Expiry date | Oct 26, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/3278
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor having improved shelf life is provided for determining concentration of a biomarker in a liquid sample. The sensor functions by electrochemical detection and requires use of a biomolecule, e.g., an enzyme that catalyzes an electron transfer reaction specific for the biomarker. The sensor requires use of a quaternary ammonium compound as a bio-linker. It further requires crosslinking of the biomolecule for improved stability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.