Colorimetric chemical sensor with enhanced color sensitivity
US11415522B2 · kind B2 · utility
1Cited by
1References
27Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 11, 2019 |
| Grant date | Aug 16, 2022 |
| Priority date | — |
| Expiry date | Sep 2, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2600/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A colorimetric sensor for detecting an analyte of interest in a fluid sample includes a lamellar photonic material having alternating layers of a first polymer layer and a second polymer layer. Each first polymer layer can be a molecularly imprinted polymer defining a cavity shaped to receive an analyte of interest. The photonic material is configured such that, when an analyte contacts the photonic material and becomes disposed within a cavity of the molecularly imprinted polymer, a refractive property of the photonic material changes, causing a detectable color change in the sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.