MHCD and microfluidic apparatus and method
US6586885B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 20, 2001 |
| Grant date | Jul 1, 2003 |
| Priority date | — |
| Expiry date | Feb 13, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/0346
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A microhollow cathode discharge (MHCD) cavity and microfluidic channel are combined for interrogation of samples. The apparatus includes a dielectric body and layers of conductive material defining a MHCD cavity containing an environment for carrying a gas discharge within the MHCD cavity. The gas discharge generates gas based electromagnetic waves. Electrical connections apply a cathode discharge potential to the layers of conductive material. A microfluidic channel is integrated on the substrate, and a path extends from the MHCD cavity laterally through a portion of the microfluidic channel. A detector, which may be integrated on the common substrate, is positioned to receive electromagnetic waves from the path and electronic circuitry is coupled to the detector for acquiring and processing data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.