We study the excited state relaxation of the DNA/RNA building blocks (bases, nucleosides, nucleotides) and their fluorescent analogs. We strive for a better insight in the very efficient internal conversion occurring after UV excitation and its dependence on the molecular structure and the solvent.
In general, the excited state lifetimes of these monomeric chromophores are so short that ultrafast techniques are needed. We use in particular femtosecond UV fluorescence spectroscopy.
• Physique et chimie pour le vivant et l’environnement › Physique et vivant / Physics and life
• IRAMIS: Saclay Institute of Matter and Radiation • Service des Photons Atomes et Molécules • Service des Photons Atomes et Molécules