Long-lived fluorescence of homopolymeric guanine-cytosine DNA duplexes

Ignacio Vayá, Pascale Changenet-Barret, Thomas Gustavsson, Dragoslav Zikich, Alexander Kotlyar, Dimitra Markovitsi*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


The fluorescence spectrum of the homopolymeric double helix poly(dG)·poly(dC) is dominated by emission decaying on the nanosecond time-scale, as previously reported for the alternating homologue poly(dGdC)·poly(dGdC). Thus, energy trapping over long periods of time is a common feature of GC duplexes which contrast with AT duplexes. The impact of such behaviour on DNA photodamage needs to be evaluated.

Original languageEnglish
Pages (from-to)1193-1195
Number of pages3
JournalPhotochemical and Photobiological Sciences
Issue number9
StatePublished - Sep 2010


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