Single gold nanostars enhance Raman scattering
Raman scattering from single gold nanostars coated with self-assembled monolayers of 4-mercaptobenzoic acid is observed. The Raman signal can be detected without the need of forming particle aggregates or resonant electronic excitation of the analyte. A total Raman enhancement factor of 10 7 for ind...
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| Veröffentlicht in: | Applied physics letters 2009-04, Vol.94 (15), p.153113-153113-3 |
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| Hauptverfasser: | , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
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| Zusammenfassung: | Raman scattering from single gold nanostars coated with self-assembled monolayers of 4-mercaptobenzoic acid is observed. The Raman signal can be detected without the need of forming particle aggregates or resonant electronic excitation of the analyte. A total Raman enhancement factor of
10
7
for individual nanostars is estimated. These features make gold nanostars promising for Raman imaging in cells or cellular membranes. |
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| ISSN: | 0003-6951 1077-3118 |
| DOI: | 10.1063/1.3119642 |