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Charge transfer and charge transport on the double helix
Author(s) -
Armitage N. P.,
Briman M.,
Grüner G.
Publication year - 2004
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200303603
Subject(s) - charge (physics) , quenching (fluorescence) , helix (gastropod) , chemical physics , chemistry , dna , dipole , range (aeronautics) , molecular physics , physics , atomic physics , fluorescence , materials science , optics , ecology , biochemistry , organic chemistry , quantum mechanics , snail , composite material , biology
We present a short review of various experiments that measure charge transfer and charge transport in DNA. Some general comments are made on the possible connection between various ‘chemistry‐style’ charge transfer experiments that probe fluorescence quenching and remote oxidative damage and ‘physics‐style’ measurements that measure transport properties as defined typically in the solid‐state. We then describe measurements performed by our group on the millimeter wave response of DNA. By measuring over a wide range of humidity conditions and comparing the response of single strand DNA and double strand DNA, we show that the appreciable AC conductivity of DNA is not due to photon assisted hopping between localized states, but instead due to dissipation from dipole motion in the surrounding water helix. (© 2003 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)