期刊
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
卷 241, 期 1, 页码 69-75出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssb.200303603
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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 'phys-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. (C) 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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