title: Label-free SERS monitoring of chemical reactions catalyzed by small gold nanoparticles using 3D plasmonic superstructures.
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.
authors.affiliation: Department of Physics, University of Osnabrück, Barbarastrasse 7, 49076 Osnabrück, Germany.
authors.forename: Wei
authors.initials: W
authors.lastname: Xie
authors.forename: Bernd
authors.initials: B
authors.lastname: Walkenfort
authors.forename: Sebastian
authors.initials: S
authors.lastname: Schlücker
mesh_terms: D002384:Catalysis; D006046:Gold / Q000737:chemistry*; D046911:Macromolecular Substances / Q000138:chemical synthesis / Q000737:chemistry; D053768:Metal Nanoparticles / Q000737:chemistry*; D015394:Molecular Structure; D010316:Particle Size; D012822:Silicon Dioxide / Q000737:chemistry; D013059:Spectrum Analysis, Raman; D013438:Sulfhydryl Compounds / Q000737:chemistry; D013499:Surface Properties
chemical_list: D046911:Macromolecular Substances; D013438:Sulfhydryl Compounds; D006046:Gold; D012822:Silicon Dioxide