title: Hydrodynamic boundary condition of water on hydrophobic surfaces.
abstract: By combining total internal reflection fluorescence cross-correlation spectroscopy with Brownian dynamics simulations, we were able to measure the hydrodynamic boundary condition of water flowing over a smooth solid surface with exceptional accuracy. We analyzed the flow of aqueous electrolytes over glass coated with a layer of poly(dimethylsiloxane) (advancing contact angle Θ = 108°) or perfluorosilane (Θ = 113°). Within an error of better than 10 nm the slip length was indistinguishable from zero on all surfaces.
authors.affiliation: Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.
authors.forename: David
authors.initials: D
authors.lastname: Schaeffel
authors.forename: Stoyan
authors.initials: S
authors.lastname: Yordanov
authors.forename: Marcus
authors.initials: M
authors.lastname: Schmelzeisen
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Yamamoto
authors.forename: Michael
authors.initials: M
authors.lastname: Kappl
authors.forename: Roman
authors.initials: R
authors.lastname: Schmitz
authors.forename: Burkhard
authors.initials: B
authors.lastname: Dünweg
authors.forename: Hans-Jürgen
authors.initials: HJ
authors.lastname: Butt
authors.forename: Kaloian
authors.initials: K
authors.lastname: Koynov
mesh_terms: D003198:Computer Simulation; D004058:Diffusion; D057446:Hydrodynamics; D057927:Hydrophobic and Hydrophilic Interactions; D008956:Models, Chemical; D008958:Models, Molecular; D009038:Motion; D013499:Surface Properties; D014867:Water / Q000737:chemistry*
chemical_list: D014867:Water