Complex local dynamics in DNA on the picosecond and nanosecond time scales

Eric B. Brauns, Mihaela L. Madaras, Robert S. Coleman, Catherine J. Murphy, Mark A. Berg

Research output: Contribution to journalArticlepeer-review

Abstract

Time-resolved Stokes shift measurements of the local structural relaxation were conducted for three DNA oligonucleotides. The method relies on a probe molecule that has a large change in dipole moment in the excited state. It is found that the 30%-50% of the relaxation in the DNA oligonucleotides are faster than 40 ps, has a nonlogarithmic decay and has a sequence dependent amplitude.

Original languageEnglish (US)
Article number158101
Pages (from-to)1581011-1581014
Number of pages4
JournalPhysical review letters
Volume88
Issue number15
StatePublished - Apr 15 2002
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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