Label-free SERS monitoring of chemical reactions catalyzed by small gold nanoparticles using 3D plasmonic superstructures

Wei Xie; Bernd Walkenfort; Sebastian Schlücker

doi:10.1021/ja309074a

Label-free SERS monitoring of chemical reactions catalyzed by small gold nanoparticles using 3D plasmonic superstructures

J Am Chem Soc. 2013 Feb 6;135(5):1657-60. doi: 10.1021/ja309074a. Epub 2012 Nov 29.

Authors

Wei Xie¹, Bernd Walkenfort, Sebastian Schlücker

Affiliation

¹ Department of Physics, University of Osnabrück, Barbarastrasse 7, 49076 Osnabrück, Germany.

PMID: 23186150
DOI: 10.1021/ja309074a

Abstract

Label-free in situ surface-enhanced Raman scattering (SERS) monitoring of reactions catalyzed by small gold nanoparticles using rationally designed plasmonic superstructures is presented. Catalytic and SERS activities are integrated into a single bifunctional 3D superstructure comprising small gold satellites self-assembled onto a large shell-isolated gold core, which eliminates photocatalytic side reactions.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Catalysis
Gold / chemistry*
Macromolecular Substances / chemical synthesis
Macromolecular Substances / chemistry
Metal Nanoparticles / chemistry*
Molecular Structure
Particle Size
Silicon Dioxide / chemistry
Spectrum Analysis, Raman
Sulfhydryl Compounds / chemistry
Surface Properties

Substances

Macromolecular Substances
Sulfhydryl Compounds
Gold
Silicon Dioxide