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

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 journal › Article › peer-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 language	English (US)
Article number	158101
Pages (from-to)	1581011-1581014
Number of pages	4
Journal	Physical review letters
Volume	88
Issue number	15
State	Published - Apr 15 2002
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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title = "Complex local dynamics in DNA on the picosecond and nanosecond time scales",

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.",

author = "Brauns, {Eric B.} and Madaras, {Mihaela L.} and Coleman, {Robert S.} and Murphy, {Catherine J.} and Berg, {Mark A.}",

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AU - Madaras, Mihaela L.

AU - Coleman, Robert S.

AU - Murphy, Catherine J.

AU - Berg, Mark A.

PY - 2002/4/15

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N2 - 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.

AB - 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.

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

Abstract

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