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Hannover 2013 – scientific programme

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MO: Fachverband Molekülphysik

MO 19: Poster 2: Biomolecules, Cold Molecules, Experimental Techniques, Various Topics

MO 19.17: Poster

Wednesday, March 20, 2013, 16:00–18:30, Empore Lichthof

Time-Resolved Spectroscopy on Isolated RC-LH1 Complexes of Rhodopseudomonas palustris — •Sebastian R. Beyer1, Lars Müller2, Richard Hildner1, June Southall3, Richard J. Cogdell3, G. Matthias Ullmann2, and Jürgen Köhler11Experimental Physics IV, University of Bayreuth, 95440 Bayreuth, Germany — 2Computational Biochemistry/Bioinformatics, University of Bayreuth, 95440 Bayreuth, Germany — 3Institute of Molecular, Cell and Systems Biology, College of Medical, Veterinary and Life Sciences, Biomedical Research Building, Glasgow G12 8QQ, Scotland, UK

The photosynthetic apparatus of purple bacteria is a highly efficient system for the conversion of solar radiation into biological usable forms of energy. Part of this photosynthetic apparatus are pigment-protein complexes. They are responsible for the absorption of sunlight and the generation of a stable charge separated state.

We report about ps-time-resolved spectroscopy on ensembles of isolated, i.e. non-interacting, RC-LH1 complexes from Rhodopseudomonas palustris. The experiments are complemented by dynamic Monte Carlo simulations as employed successfully in an earlier study [1, 2].

[1] T. J. Pflock, et. al., J. Phys. Chem. B, 2011, 115, 8813-8820.

[2] T. J. Pflock, et. al., J. Phys. Chem. B, 2011, 115, 8821-8831.

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