Gel sensors and method of use thereof
US6180288A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 1997 |
| Grant date | Jan 30, 2001 |
| Priority date | — |
| Expiry date | Mar 21, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2001/0033
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention comprises an optically diffracting sensing device whose diffraction pattern changes upon exposure to some stimuli. The diffraction pattern may be two or three dimensional, and in one embodiment the change in diffraction patterns is recognizable to the untrained eye. The device comprises one or more gels coated onto patterned, self-assembling monolayers of alkanethiolates, carboxylic acids, hydroxamic acids, and phosphonic acids printed onto a variety of substrates, including glass, silicon, aluminum oxide, and thermoplastic films metallized with gold, or with an alloy such as nickel/gold. The present invention also comprises the method of making this device, and the use of this device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.