Berlin 2015 – wissenschaftliches Programm

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BP: Fachverband Biologische Physik

BP 25: Posters: DNA/RNA and related enzymes

BP 25.4: Poster

Dienstag, 17. März 2015, 14:00–16:00, Poster A

Compatible solute induced vibrational modes in water and the connection to radiation protection of biomolecules — •Marc Benjamin Hahn, Susann Meyer, Tihomir Solomun, Heinz Sturm, and Hans-Jörg Kunte — BAM - Federal Inst. Mater. Res., Berlin, Germany

Radiation protecion properties of compatible solutes are already exploited in medical applications. Even though the underlying mechanisms remain unclear. We present ramanspectroscopic measurements on the influence of the vibrational behaviour of water in dependence of compatible solutes concentrations. The results for ectoine and hydroxyectoine show an increase in the free density of states of the collective vibrational and the low frequency modes of water with increasing solute concentration. Based on this findings an explanation for the radiation protection properties will be proposed.