Glucose sensor apparatus addressing interference of ascorbic acid and acetaminophen
US11744493B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2019 |
| Grant date | Sep 5, 2023 |
| Priority date | — |
| Expiry date | Mar 8, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/92
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
This disclosure relates to an apparatus for glucose-sensing that address interference of ascorbic acid and acetaminophen. The apparatus includes a first electrode capable of oxidizing glucose and at least one of ascorbic acid and acetaminophen. The apparatus further includes a second electrode capable of oxidizing at least one of ascorbic acid and acetaminophen but not capable of oxidizing glucose. The first electrode includes a deposit of irregularly shaped bodies that are formed of numerous nanoparticles having a generally oval or spherical shape with a length ranging between about 2 nm and about 5 nm. The deposit is substantially free of a surfactant. If any surfactant is contained in the deposit, the surfactant is in an amount smaller than 0.5 parts by weight with reference to 100 parts by weight of the deposit. The first electrode does not include a glucose-specific enzyme.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.