Dresden 2017 – scientific programme
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O: Fachverband Oberflächenphysik
O 113: Thin Films, Nanostructures and Nanoparticles II
O 113.7: Talk
Friday, March 24, 2017, 12:00–12:15, ZEU 114
Surface-Enhanced Characterization of Nanoparticle Surfaces — •Christian Kuttner1,2, Roland P.M. Höller1, Martin Mayer1,2, Max J. Schnepf1, and Andreas Fery1,2,3 — 1Leibniz-Institut für Polymerforschung Dresden e.V., 01069 Dresden, Germany — 2Cluster of Excellence Centre for Advancing Electronics Dresden (cfaed), Technische Universität Dresden, 01062 Dresden, Germany — 3Physical Chemistry of Polymeric Materials, Technische Universität Dresden, 01069 Dresden, Germany
We present the retrieval of molecular information at nanoparticle surfaces using surface-enhanced Raman scattering (SERS). The electric-field enhancement of the localized surface plasmon resonances (LSPRs) of noble metal nanoparticles can be exploited for the local characterization of their molecular surface near field. [1]
Consequently, we studied the nanoparticles’ ligand corona in dispersion and its exchange based on the example of low-molecular-weight surfactants against high-molecular-weight proteins. [2]
[1] Höller, R.P.M. et al., ACS Nano 2016, 10, 5740–5750.
[2] Tebbe, M. et al., ACS Appl. Mater. Interfaces 2015, 7, 5984–5991.