Electronic excitation energy transfer between nucleobases of natural DNA

Ignacio Vayá, Thomas Gustavsson, Thierry Douki, Yuri Alfredovich Berlin, Dimitra Markovitsi*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

61 Scopus citations

Abstract

Transfer of the electronic excitation energy in calf thymus DNA is studied by time-resolved fluorescence spectroscopy. The fluorescence anisotropy, after an initial decay starting on the femtosecond time scale, dwindles down to ca. 0.1. The in-plane depolarized fluorescence decays are described by a stretched exponential law. Our observations are consistent with one-dimensional transfer mediated by charge-transfer excited states.

Original languageEnglish (US)
Pages (from-to)11366-11368
Number of pages3
JournalJournal of the American Chemical Society
Volume134
Issue number28
DOIs
StatePublished - Jul 18 2012

ASJC Scopus subject areas

  • Chemistry(all)
  • Catalysis
  • Biochemistry
  • Colloid and Surface Chemistry

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