Till von Feilitzsch

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The mechanism of photoinduced hole injection into DNA has been studied using an integrated approach that combines NMR structural analysis, time-resolved spectroscopy, and quantum-chemical calculations. A covalently linked acridinium derivative, the protonated 9-amino-6-chloro-2-methoxyacridine (X+), is replacing a thymine and separated from either guanine(More)
Alanyl peptide nucleic acids have been designed to generate linear and rigid pairing complexes. Femtosecond time resolved electron transfer dynamics studies of alanyl-PNA double strands where both strands contain an intercalated 9-amino-6-chloro-2-methoxy-acridine in its protonated state reveal a strong similarity to nearest neighbor interstrand/intrastrand(More)
The radical pair recombination of an intramolecular electron-transfer system containing a transition metal moiety has been addressed by femtosecond spectroscopy. The radical pair is formed by ultrafast electron transfer (90 fs) from a ferrocene residue to a photoexcited Nile blue moiety. Its recombination proceeds on the picosecond time scale in a(More)
Ultrafast, intra-oligomer fluorescence resonance energy transfer (FRET) between an immature green-emitting GFP-like chromophore to the mature red-emitting chromophore is found in the novel red fluorescent protein wt-DsRed (the picture shows the steady-state absorption (solid line) and emission (dotted) spectra). Since FRET is by its very nature a short(More)
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