Institut des
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Accueil > Evénements > Séminaires > Water flows at ultimate

Water flows at ultimate scales and exotic ionic transport - Lydéric Bocquet - Jeudi 26 septembre 2019 à 16 h 30

INSP - Sorbonne Université - 4 place Jussieu - 75005 Paris - Barre 22-23, 3e étage, salle 317

Lydéric Bocquet, Ecole Normale Supérieure/CNRS


It is an exciting period for nanofluidics, the field exploring the transport of fluids at the nanoscales. Routes now exist to fabricate individual channels with nanometric and even sub-nanometric dimensions, while new instruments have also been invented to probe transport across these channels. And indeed, a number of quite exotic properties for water and ion transport have emerged since. This presentation will highlight several such phenomena : ionic transport across carbon and boron-nitride nanotubes, which exhibit contrasting responses for these twin materials with the same crystallography but different electronic properties ; mass transport across these nanotubes, which also highlight drastic differences in permeability and points to a hitherto not appreciated link between hydrodynamic flow and the electronic structure of the confining material ; strongly non-linear transport in sub-nanometric channels, exhibiting mechano-sensitive-like behaviour ; or prediction for ionic Coulomb blockade.

References :

  • “Massive radius-dependent flow slippage in single carbon nanotubes ” E. Secchi, S. Marbach, A. Niguès, D. Stein, A. Siria and L. Bocquet, Nature 537 210 (2016)
  • “Molecular streaming and voltage-gated response in Angström scale channels” T. Mouterde, A. Keerthi, A. Poggioli, S. Dar, A. Siria, A.K. Geim, L. Bocquet and R. Boya, Nature 567 87 (2019)
  • “Ionic Coulomb blockade as a fractional Wien effect ” N. Kavokine, S. Marbach, A. Siria, L. Bocquet, Nature Nanotechnology 14 573 (2019)