ChemPhysChem

Cover image for Vol. 17 Issue 14

Editor: Greta Heydenrych; Editorial Board Chairs: Christian Amatore, Michael Grätzel, Michel Orrit

Impact Factor: 3.138

ISI Journal Citation Reports © Ranking: 2015: 8/35 (Physics Atomic Molecular & Chemical); 50/144 (Chemistry Physical)

Online ISSN: 1439-7641

Associated Title(s): Advanced Materials, ChemBioChem, ChemCatChem, ChemElectroChem, ChemSusChem, Small

10_04/2009Cover Picture: Single-Molecule Fluorescence Studies Reveal Long-Range Electron-Transfer Dynamics Through Double-Stranded DNA (ChemPhysChem 4/2009)

The cover picture shows the results of single-molecule experiments where fluctuations in the fluorescence emission of a FRET donor could be related to charge transfer through the π-stack of double-stranded DNA. The bottom drawing shows a microscopic single-molecule image of individual DNA probes depicted as green and red spots, indicative of donor and acceptor emission respectively. The overlay on the right is a sketch of a DNA probe with combined electron and energy transfer. The first second of the fluorescence transient shown on top is indicative of energy transfer until the acceptor photo-bleaches (red). On page 629, M. Kumbhakar, D.-P. Herten et al. demonstrate that the donor emission shows fluctuations (green) after acceptor bleaching that can be related to charge transfer between donors and acceptors transmitted by the π-stack of double-stranded DNA.

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