Electrochemical sensor ink compositions, electrodes, and uses thereof
US7189341B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2003 |
| Grant date | Mar 13, 2007 |
| Priority date | — |
| Expiry date | Jan 8, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/3271
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention is directed to conductive polymer compositions, catalytic ink compositions (e.g., for use in screen-printing), electrodes produced by deposition of an ink composition, as well as methods of making, and methods of using such compositions and electrodes. An exemplary ink material comprises a metal catalyst (e.g., platinum black and/or platinum-on-carbon), graphite as a conducting material, a polymer binding material, and an organic solvent. In one aspect, the polymer binding material comprises a polymer binder blend comprising first and second polymers, wherein the first polymer has a glass transition temperature higher than the second polymer. In a second aspect, the polymer binding material comprises a hydrophilic acrylic polymer, copolymer, or terpolymer. The conductive polymer compositions of the present invention may be used, for example, to make electrochemical sensors. Such sensors may be used, for example, in a variety of devices to monitor analyte amount or concentrations in subjects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.