Regensburg 2010 – scientific programme

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 36: Poster: Nanoparticles and Composite Materials

CPP 36.6: Poster

Wednesday, March 24, 2010, 17:30–19:00, Poster B2

Investigation of Assembly formation of quantum dots and dyes on a single molecule particle level in thin liquid films — •Frank Gerlach, Daniela Täuber, Danny Kowerko, and Christian von Borczyskowski — nanoMA, TU-Chemnitz, Institut für Physik

Nanoparticles such as colloidal semiconductor quantum dots (QD) are widely used e.q. as labels in biophysical and medical applications. This has led to quite a number of studies, related to the formation of nanoassemblies formed by QD and dye molecules. The formation of assemblies is a - ligand controlled - sequence of attachments and detachments.

Here we use fluorescence and single molecule methods to explore these dynamics in thin liquid films on silica surfaces. This is a combined study on aggregate formation [1] and diffusion experiments [2].

[1] D. Kowerko, J. Schuster, N. Amecke, M. Abdel-Mottaleb, R. Dobrawa, F. Würthner, C. von Borczyskowski, PhysChemChemPhys, 2009 accepted

[2] D. Täuber, C. von Borczyskowski et al: Diff. Fund. Online Journal 2009 submitted