Observation of ionic Coulomb blockade in nanopores.
- Feng J Laboratory of Nanoscale Biology, Institute of Bioengineering, School of Engineering, EPFL, 1015 Lausanne, Switzerland.
- Liu K Laboratory of Nanoscale Biology, Institute of Bioengineering, School of Engineering, EPFL, 1015 Lausanne, Switzerland.
- Graf M Laboratory of Nanoscale Biology, Institute of Bioengineering, School of Engineering, EPFL, 1015 Lausanne, Switzerland.
- Dumcenco D Laboratory of Nanoscale Electronics and Structures, Institute of Electrical Engineering, School of Engineering, EPFL, 1015 Lausanne, Switzerland.
- Kis A Laboratory of Nanoscale Electronics and Structures, Institute of Electrical Engineering, School of Engineering, EPFL, 1015 Lausanne, Switzerland.
- Di Ventra M Department of Physics, University of California, San Diego, La Jolla, California 92093, USA.
- Radenovic A Laboratory of Nanoscale Biology, Institute of Bioengineering, School of Engineering, EPFL, 1015 Lausanne, Switzerland.
- 2016-03-29
Published in:
- Nature materials. - 2016
English
Emergent behaviour from electron-transport properties is routinely observed in systems with dimensions approaching the nanoscale. However, analogous mesoscopic behaviour resulting from ionic transport has so far not been observed, most probably because of bottlenecks in the controlled fabrication of subnanometre nanopores for use in nanofluidics. Here, we report measurements of ionic transport through a single subnanometre pore junction, and the observation of ionic Coulomb blockade: the ionic counterpart of the electronic Coulomb blockade observed for quantum dots. Our findings demonstrate that nanoscopic, atomically thin pores allow for the exploration of phenomena in ionic transport, and suggest that nanopores may also further our understanding of transport through biological ion channels.
- Language
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- English
- Open access status
- green
- Identifiers
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- DOI 10.1038/nmat4607
- PMID 27019385
- Persistent URL
- https://sonar.ch/global/documents/209698
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