Počet záznamů: 1

Charge transport in DNA oligonucleotides with various base-pairing patterns

  1. 1.
    0342650 - FZU-D 2011 RIV US eng J - Článek v odborném periodiku
    Kratochvílová, Irena - Todorciuc, Tatiana - Král, Karel - Němec, Hynek - Bunček, M. - Šebera, Jakub - Záliš, Stanislav - Vokáčová, Zuzana - Sychrovský, Vladimír - Bednárová, Lucie - Mojzeš, P. - Schneider, Bohdan
    Charge transport in DNA oligonucleotides with various base-pairing patterns.
    Journal of Physical Chemistry B. Roč. 114, č. 15 (2010), 5196–5205 ISSN 1520-6106
    Grant CEP: GA ČR GA203/08/1594; GA AV ČR KAN401770651; GA MŠk OC 137; GA ČR GA202/07/0643; GA AV ČR IAA400550701; GA AV ČR KAN200100801; GA AV ČR KAN100400702; GA ČR GA202/09/0193
    Výzkumný záměr: CEZ:AV0Z10100520; CEZ:AV0Z40500505; CEZ:AV0Z40400503; CEZ:AV0Z40550506; CEZ:AV0Z50520701
    Klíčová slova: DNA * charge transport * Scanning Tunneling Microscopy
    Kód oboru RIV: CC - Organická chemie
    Impakt faktor: 3.603, rok: 2010

    We combined various experimental (STM, Raman spectroscopy) and theoretical (DFT, MD) approaches to study the relationships between the base-pairing patterns and charge transfer properties in DNA 32-mer duplexes that may be relevant for identification and repair of defects in base pairing of the genetic DNA and for DNA use in nanotechnologies. Studied were two duplexes fully Watson-Crick paired, one mismatched (containing three non-W-C pairs), and three with base pairs chemically removed. The results show that the charge transport varies strongly between these duplexes. The conductivity of the mismatched duplex is considerably lower than that of the W-C-paired one despite that their structural integrity and thermal stability are comparable. Structurally and thermally much less stable abasic duplexes have still lower conductivity, but not markedly different from the mismatched duplex.
    Trvalý link: http://hdl.handle.net/11104/0005881