Liquid friction on charged surfaces: From hydrodynamic slippage to electrokinetics
نویسندگان
چکیده
منابع مشابه
Liquid friction on charged surfaces: from hydrodynamic slippage to electrokinetics.
Hydrodynamic behavior at the vicinity of a confining wall is closely related to the friction properties of the liquid/solid interface. Here we consider, using molecular dynamics simulations, the electric contribution to friction for charged surfaces, and the induced modification of the hydrodynamic boundary condition at the confining boundary. The consequences of liquid slippage for electrokine...
متن کاملCharged colloids and polyelectrolytes: from statics to electrokinetics
A review is given on recent studies of charged colloidal suspensions and polyelectrolytes both in static and non-equilibrium situations. As far as static equilibrium situations are concerned, we discuss three different problems: 1) Sedimentation density profiles in charged suspensions are shown to exhibit a stretched non-bariometric wing at large heights and binary suspensions under gravity can...
متن کاملToward generating low-friction nanoengineered surfaces with liquid-vapor interfaces.
Using molecular dynamics (MD), we investigate the importance of liquid-vapor interface topography in designing low-friction nanoengineered superhydrophobic surfaces. Shear flow is simulated on patterned surfaces. The relationship between the effective slip length and bubble meniscus curvature is attained by generating entrapped bubbles with large protrusion angles on patterned surfaces with nan...
متن کاملClean data with dirty surfaces in electrokinetics
The field of electrokinetics, or electrically driven motion of particles and fluids, recently celebrated its 200th birthday [1, 2] and yet it remains a frontier of theoretical physics. Stringent tests of the standard model used by workers in this field are now possible in microfluidic devices using alternating-current [3] or induced-charge electro-osmotic (ICEO) flows [4]. Unlike classical elec...
متن کاملLiquid morphologies on structured surfaces: from microchannels to microchips
Liquid microchannels on structured surfaces are built up using a wettability pattern consisting of hydrophilic stripes on a hydrophobic substrate. These channels undergo a shape instability at a certain amount of adsorbed volume, from a homogeneous state with a spatially constant cross section to a state with a single bulge. This instability is quite different from the classical Rayleigh Platea...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Journal of Chemical Physics
سال: 2006
ISSN: 0021-9606,1089-7690
DOI: 10.1063/1.2397677