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"Flavin-induced DNA Photooxidation and Charge Movement Probed by Ultrafast Transient Absorption Spectroscopy" M. Wenninger, D. Fazio, U. Megerle, C. Trindler, S. Schiesser, E. Riedle, T. CarellChemBioChem 12, 703 - 706 (2011) Abstract: Quantum yields of up to 14 % for the formation of a long-lived, charge-separated state can be achieved in flavin-capped DNA hairpins. The excited flavin state is quenched by electron-transfer processes from adjacent DNA bases. The introduction of multiple (dG:dC) base pairs leads to efficient hole trapping that competes with the charge recombination through dA-hopping processes. BMO authors (in alphabetic order): Uwe Megerle Eberhard Riedle Matthias Wenninger Order Hardcopy  WWW-Version |