Optical sensor based on PFSI membrane comprising associated benzene-1,3-diol for detecting target compounds, and method thereof
US9921167B2 · kind B2 · utility
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Key dates
| Filing date | Oct 23, 2015 |
| Grant date | Mar 20, 2018 |
| Priority date | — |
| Expiry date | Jan 14, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/775
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical sensor for monitoring an environmental condition, the optical sensor comprising a perfluorosulfonate ionomer membrane comprising a solution, wherein the solution comprises a transition metal-free dye component, wherein exposure of the optical sensor to a specific environmental condition produces a color shift on the optical sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.