Optically integrated biosensor based on optically detected magnetic resonance
US8193808B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 11, 2009 |
| Grant date | Jun 5, 2012 |
| Priority date | — |
| Expiry date | Dec 22, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/302
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optically integrated magnetic biosensor includes an optically detected magnetic resonance (ODMR) center and a fluidics layer configured to contain a solution comprising analytes, the fluidics layer being disposed over the ODMR center. A light source which generates incident light excites electrons within the ODMR center from a ground state to an excited state and a radio frequency (RF) antenna generates an RF field incident with frequencies which correspond to ground state transitions in the ODMR center. The ODMR center produces emitted light when illuminated by the incident light. The characteristics of the emitted light are influenced by the RF field and magnetic nanoparticles attached to the analytes. A method for detecting analytes using optically detected magnetic resonance is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.