Spatially scanned optical reader system and method for using same
US7604984B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 29, 2004 |
| Grant date | Oct 20, 2009 |
| Priority date | — |
| Expiry date | Dec 29, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N21/7743
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical reader system is described herein that uses a scanned optical beam to interrogate a biosensor to determine if a biomolecular binding event occurred on a surface of the biosensor. In one embodiment, the optical reader system includes a light source, a detector and a processor (e.g., computer, DSP). The light source outputs an optical beam which is scanned across a moving biosensor and while this is happening the detector collects the optical beam which is reflected from the biosensor. The computer processes the collected optical beam and records the resulting raw spectral or angle data which is a function of a position (and possibly time) on the biosensor. The processor can then analyze the raw data to create a spatial map of resonant wavelength (peak position) or resonant angle which indicates whether or not a biomolecular binding event occurred on the biosensor. Several other uses of the raw data are also described herein.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.