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Issue 9, 2010
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Long-lived fluorescence of homopolymeric guaninecytosine DNA duplexes

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Abstract

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.

Graphical abstract: Long-lived fluorescence of homopolymeric guanine–cytosine DNA duplexes

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Publication details

The article was received on 03 Jul 2010, accepted on 23 Jul 2010 and first published on 12 Aug 2010


Article type: Communication
DOI: 10.1039/C0PP00201A
Citation: Photochem. Photobiol. Sci., 2010,9, 1193-1195
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    Long-lived fluorescence of homopolymeric guaninecytosine DNA duplexes

    I. Vayá, P. Changenet-Barret, T. Gustavsson, D. Zikich, A. B. Kotlyar and D. Markovitsi, Photochem. Photobiol. Sci., 2010, 9, 1193
    DOI: 10.1039/C0PP00201A

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