Electronic excitation energy transfer between nucleobases of natural DNA

Ignacio Vayá; Thomas Gustavsson; Thierry Douki; Yuri Berlin; Dimitra Markovitsi

doi:10.1021/ja304328g

Electronic excitation energy transfer between nucleobases of natural DNA

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

^*Corresponding author for this work

Chemistry

Research output: Contribution to journal › Article › peer-review

65 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 language	English (US)
Pages (from-to)	11366-11368
Number of pages	3
Journal	Journal of the American Chemical Society
Volume	134
Issue number	28
DOIs	https://doi.org/10.1021/ja304328g
State	Published - Jul 18 2012

ASJC Scopus subject areas

Catalysis
General Chemistry
Biochemistry
Colloid and Surface Chemistry

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10.1021/ja304328g

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title = "Electronic excitation energy transfer between nucleobases of natural DNA",

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.",

author = "Ignacio Vay{\'a} and Thomas Gustavsson and Thierry Douki and Yuri Berlin and Dimitra Markovitsi",

year = "2012",

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T1 - Electronic excitation energy transfer between nucleobases of natural DNA

AU - Vayá, Ignacio

AU - Gustavsson, Thomas

AU - Douki, Thierry

AU - Berlin, Yuri

AU - Markovitsi, Dimitra

PY - 2012/7/18

Y1 - 2012/7/18

N2 - 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.

AB - 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.

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Electronic excitation energy transfer between nucleobases of natural DNA

Abstract

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