Probing the nanohydrodynamics at liquid-solid interfaces using thermal motion

被引：140

作者：

Joly, L ^{[1
]}

Ybert, C

Bocquet, L

机构：

[1] Univ Lyon 1, UMR 5586, Lab Phys Mat Condensee & Nanostruct, F-69622 Villeurbanne, France

[2] CNRS, F-69622 Villeurbanne, France

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 04期

关键词：

D O I：

10.1103/PhysRevLett.96.046101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on a new method to characterize nanohydrodynamic properties at the liquid-solid interface relying solely on the measurement of the thermal motion of confined colloids. This equilibrium measurement of surface properties-equivalent in spirit to the passive microrheology technique used for bulk properties-is able to achieve nanometric resolution on the slip length measurement. Exploring the "zero shear rate" limit, it rules out shear rate threshold to slip effects and extends the range over which slip lengths are shown to be flow independent. Avoiding the nucleation of gas pockets (nanobubbles) through external forcing, it validates the theoretical picture for intrinsic liquid-solid interfaces, reporting nanometric slip lengths (b = 18 +/- 5 nm) only in nonwetting situations, opening the route to quantitative study on more complex surfaces with combined effects of nonwettability and roughness.

引用

页数：4

共 25 条

[1] Influence of wetting properties on diffusion in a confined fluid [J].

Alméras, Y ;

Barrat, JL ;

Bocquet, L .

JOURNAL DE PHYSIQUE IV, 2000, 10 (P7) :27-31

[2] Large slip effect at a nonwetting fluid-solid interface [J].

Barrat, JL ;

Bocquet, L .

PHYSICAL REVIEW LETTERS, 1999, 82 (23) :4671-4674

[3] THE DRAINAGE OF THIN LIQUID-FILMS BETWEEN SOLID-SURFACES [J].

CHAN, DYC ;

HORN, RG .

JOURNAL OF CHEMICAL PHYSICS, 1985, 83 (10) :5311-5324

[4] Boundary slip on smooth hydrophobic surfaces: Intrinsic effects and possible artifacts [J].

Cottin-Bizonne, C ;

Cross, B ;

Steinberger, A ;

Charlaix, E .

PHYSICAL REVIEW LETTERS, 2005, 94 (05)

[5] Dynamics of simple liquids at heterogeneous surfaces:: Molecular-dynamics simulations and hydrodynamic description [J].

Cottin-Bizonne, C ;

Barentin, C ;

Charlaix, É ;

Bocquet, L ;

Barrat, JL .

EUROPEAN PHYSICAL JOURNAL E, 2004, 15 (04) :427-438

[6] Reduced water density at hydrophobic surfaces: Effect of dissolved gases [J].

Doshi, DA ;

Watkins, EB ;

Israelachvili, JN ;

Majewski, J .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2005, 102 (27) :9458-9462

[7] The motion of elements suspended in static liquids as claimed in the molecular kinetic theory of heat [J].

Einstein, A .

ANNALEN DER PHYSIK, 1905, 17 (08) :549-560

[8] Characterization of SiO2 surface treatments using AFM, contact angles and a novel dewpoint technique [J].

Eske, LD ;

Galipeau, DW .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 1999, 154 (1-2) :33-51

[9] CONFINED BROWNIAN-MOTION [J].

FAUCHEUX, LP ;

LIBCHABER, AJ .

PHYSICAL REVIEW E, 1994, 49 (06) :5158-5163

[10] Hydrodynamics within the electric double layer on slipping surfaces [J].

Joly, L ;

Ybert, C ;

Trizac, E ;

Bocquet, L .

PHYSICAL REVIEW LETTERS, 2004, 93 (25)

← 1 2 3 →