Related Experiment Video
Updated: Jun 24, 2026

Associated Chromosome Trap for Identifying Long-range DNA Interactions
Published on: April 23, 2011
Proximity-induced superconductivity in DNA
A Y Kasumov1, M Kociak, S Guéron
1Laboratoire de Physique des Solides, Associé au CNRS, Bât 510, Université Paris-Sud, 91405, Orsay, France.
Abstract:
Conductivity measurements on double-stranded DNA molecules deposited by a combing process across a submicron slit between rhenium/carbon metallic contacts reveal conduction to be ohmic between room temperature and 1 kelvin. The resistance per molecule is less than 100 kilohm and varies weakly with temperature. Below the superconducting transition temperature (1 kelvin) of the contacts, proximity-induced superconductivity is observed. These results imply that DNA molecules can be conducting down to millikelvin temperature and that phase coherence is maintained over several hundred nanometers.
Related Concept Videos
DNA Base Pairing
DNA Base Pairing
DNA Helicases
DNA Topoisomerases
Types and Mechanism of action
Topoisomerases are divided into two main types. Type I...
DNA-only Transposons
The donor site from where the transposon is excised is either degraded or...
Single-Strand DNA Binding Proteins

