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Conformation and Local Environment Dependent Conductance of DNA Molecules
Author(s) -
Xu M. S.,
Endres R. G.,
Tsukamoto S.,
Kitamura M.,
Ishida S.,
Arakawa Y.
Publication year - 2005
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.200500216
Subject(s) - conductance , scanning tunneling microscope , molecule , electronic structure , chemical physics , materials science , spectroscopy , ab initio , quantum tunnelling , dna , nanotechnology , ab initio quantum chemistry methods , crystallography , molecular physics , chemistry , computational chemistry , condensed matter physics , physics , optoelectronics , biochemistry , organic chemistry , quantum mechanics
Electronic properties of DNA (both conformation and local environment dependent) on a single molecular level, as well as for arrays of molecules, have been investigated in this work by using ultrahigh‐vacuum scanning tunneling microscopy (see Figure) and spectroscopy. Ab initio electronic structure calculations under the same vacuum conditions have also been performed. Finally, we propose a model for the appearance of a high‐conductance DNA conformation on gold surfaces.