Electronic energy delocalization and dissipation in single- and double-stranded DNA.

@article{Buchvarov2007ElectronicED,
  title={Electronic energy delocalization and dissipation in single- and double-stranded DNA.},
  author={Ivan Buchvarov and Qiang Wang and Milen Raytchev and Anton Aleksandrov Trifonov and Torsten Fiebig},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  year={2007},
  volume={104 12},
  pages={4794-7}
}
The mechanism that nature applies to dissipate excess energy from solar UV light absorption in DNA is fundamental, because its efficiency determines the vulnerability of all genetic material to photodamage and subsequent mutations. Using femtosecond time-resolved broadband spectroscopy, we have traced the electronic excitation in both time and space along the base stack in a series of single-stranded and double-stranded DNA oligonucleotides. The obtained results demonstrate not only the… CONTINUE READING

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