SAW-based hydrogel testing for detecting viruses or other antigens
US11898987B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2020 |
| Grant date | Feb 13, 2024 |
| Priority date | — |
| Expiry date | Dec 3, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/0423
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus includes a surface acoustic wave (SAW) sensor. The SAW sensor includes a piezoelectric substrate. The SAW sensor also includes first and second interdigitating transistors over the piezoelectric substrate. The first interdigitating transistor is configured to convert an input electrical signal into an acoustic wave. The second interdigitating transistor is configured to convert the acoustic wave into an output electrical signal. The piezoelectric substrate is configured to transport the acoustic wave. The SAW sensor further includes a detection layer over the piezoelectric substrate and positioned at least partially between the first and second interdigitating transistors. The detection layer includes (i) antibodies configured to bind to one or more biological analytes and (ii) a hydrogel layer over the antibodies.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.