Surface-enhanced Raman scattering in local optical fields of silver and gold nanoaggregatess - From single-molecule Raman spectroscopy to ultrasensitive probing in live cells

被引：577

作者：

Kneipp, Katrin ^{[1
]}

Kneipp, Harald

Kneipp, Janina

机构：

[1] Harvard Univ, Sch Med, Wellman Ctr Photomed, Boston, MA 02114 USA

[2] Harvard Mit Div Hlth Sci & Technol, Cambridge, MA 02139 USA

[3] Fed Inst Mat Res & Testing, D-12489 Berlin, Germany

来源：

ACCOUNTS OF CHEMICAL RESEARCH | 2006年 / 39卷 / 07期

关键词：

D O I：

10.1021/ar050107x

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

This Account discusses surface-enhanced Raman scattering at extremely high enhancement levels that can occur for molecules attached to silver and gold nanoclusters. Strongly enhanced and highly confined local optical fields enable surface-enhanced Stokes and anti-Stokes Raman spectroscopy of single molecules even under nonresonant excitation conditions as well as extremely large effective cross sections in two-photon excited Raman spectroscopy. The ability for very sensitive and spatially confined molecular structural probing makes gold and silver nanoclusters very promising tools for studies of small structures in biological materials, such as cellular compartments.

引用

页码：443 / 450

页数：8

共 58 条

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