Résumés 
La Houille Blanche, N°1 (Février 2008), pp. 83-90
DOI: 10.1051/lhb:2008009
Nanohydrodynamique près d'une surface solide : caractérisation expérimentale à l'équilibre
Laurent Joly1, 2, Christophe Ybert1, 2 et Lyderic Bocquet1, 21 Laboratoire de Physique de la Matière Condensée et Nanostructures Université de Lyon, F-69000, France ; Univ. Lyon 1
2 Laboratoire PMCN ; CNRS, UMR 5586 ; F-69622 Villeurbanne Cedex
(Publié en ligne le 20 mars 2008)
Abstract - Nanohydrodynamics at liquid-solid interfaces : experimental characterization without external forcing
We report on a new method to characterize the hydrodynamic boundary condition (HBC) relying solely on the measurement of the thermal motion of confined colloids, using a home build fluorescence correlation spectroscopy (FCS) setup. With this method, we show that, for smooth surfaces, the HBC depends on the wetting properties of the wall : while the no-slip assumption is fulfilled on hydrophilic surfaces, a finite slippage is measured on hydrophobic surfaces, with a characteristic slip length of 18 ± 5 nm.
Corresponding author: laurent.joly@univ-lyon1.fr
© Société Hydrotechnique de France 2008