Dependence of charge transmission through several conventional and extended DNA duplexes on the explicit presence of their water-counterion surrounding has been theoretically studied. We show here that: (a) the latter does not form specific charge transmission channels in addition to those available in DNA duplexes themselves; (b) chemically modifying DNA bases to extend their -electronic systems does not significantly alter time-averaged charge transmission probability through DNA duplexes.
Dependence of charge transmission through several conventional and extended DNA duplexes on the explicit presence of their water-counterion surrounding has been theoretically studied. We show here that: (a) the latter does not form specific charge transmission channels in addition to those available in DNA duplexes themselves; (b) chemically modifying DNA bases to extend their -electronic systems does not significantly alter time-averaged charge transmission probability through DNA duplexes.