Modification of metal nanoparticles for improved analyte detection by surface enhanced Raman spectroscopy (SERS)
US8003408B2 · kind B2 · utility
9Cited by
1References
9Claims
0Family size
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Key dates
| Filing date | Dec 29, 2005 |
| Grant date | Aug 23, 2011 |
| Priority date | — |
| Expiry date | Feb 17, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/656
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A SERS active particle having a metal-containing particle and a cationic coating on the metal-containing particle, wherein the SERS active particle carries a positive charge is disclosed. Also, a SERS active particle having a metal-containing particle and a non-metallic molecule, wherein the metal-containing particle is derivatized with the non-metallic molecule is disclosed. In addition, several methods of modifying the nanoparticles surfaces of a SERS active particle and of improving the interaction between the SERS active particle and an analyte are disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.