Ontology highlight
ABSTRACT:
SUBMITTER: Chang S
PROVIDER: S-EPMC2698135 | biostudies-literature | 2009 May
REPOSITORIES: biostudies-literature
Nature nanotechnology 20090322 5
Hydrogen bonding has a ubiquitous role in electron transport and in molecular recognition, with DNA base pairing being the best-known example. Scanning tunnelling microscope images and measurements of the decay of tunnel current as a molecular junction is pulled apart by the scanning tunnelling microscope tip are sensitive to hydrogen-bonded interactions. Here, we show that these tunnel-decay signals can be used to measure the strength of hydrogen bonding in DNA base pairs. Junctions that are he ...[more]