Trace detection device of biological and chemical analytes and detection method applying the same
US8279436B2 · kind B2 · utility
2Cited by
6References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2010 |
| Grant date | Oct 2, 2012 |
| Priority date | — |
| Expiry date | Dec 22, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB82Y35/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed is a trace detection device of a biological and chemical analyte, including a metal substrate, a periodic metal nanostructure on the metallic substrate, a dielectric layer on the periodic metal nanostructure, and a continuous metal film on the dielectric layer. Tuning the thickness of the dielectric layer and/or the continuous metal film to meet the laser wavelength can shift the absorption peak wavelength of the sensor, thereby further enhancing the Raman signals of the analyte molecules.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.