"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. Carell
ChemBioChem 12, 703 - 706 (2011)
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.
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