Zobrazeno 1 - 10
of 141
pro vyhledávání: '"Asmolov, Evgeny S."'
By means of a matched asymptotic expansions approach the electrophoretic velocity and zeta potential of a catalytic particle that uniformly releases ions have been investigated. Attention is focused on large, compared to diffuse layer, particles char
Externí odkaz:
http://arxiv.org/abs/2410.09774
When we place conducting bodies in electrolyte solutions, their surface potential $\Phi_s$ appears to be much smaller in magnitude than the intrinsic one $\Phi_0$ and normally does not obey the classical electrostatic boundary condition of a constant
Externí odkaz:
http://arxiv.org/abs/2408.04434
A migration of charged particles relative to a solvent, caused by a gradient of salt concentration and termed a diffusiophoresis, is of much interest being exploited in many fields. Existing theories deal with diffusiophoresis of passive inert partic
Externí odkaz:
http://arxiv.org/abs/2404.17928
We discuss how the wettability of solid walls impacts electrokinetic properties, from large systems to a nanoscale. We show in particular how could the hydrophobic slippage, coupled to confinement effects, be exploited to induce novel electrokinetic
Externí odkaz:
http://arxiv.org/abs/2304.14756
Self-propulsion of catalytic Janus swimmers in electrolyte solutions is induced by inhomogeneous ion release from their surface. Here, we consider the experimentally relevant cases of particles which emit only one type of ions (type I) or equal fluxe
Externí odkaz:
http://arxiv.org/abs/2304.05300
The theory of electrokinetic ion transport in cylindrical channels of a fixed surface charge density is revisited. Attention is focused on impact of the hydrophobic slippage and mobility of adsorbed surface charges. We formulate generalised Onsager r
Externí odkaz:
http://arxiv.org/abs/2211.00927
Self-propelling particles or microswimmers have opened a new field of investigation with both fundamental and practical perspectives. They represent very convenient model objects for experimental studies of active matter, and have implications in nan
Externí odkaz:
http://arxiv.org/abs/2205.14357
Catalytic Janus swimmers demonstrate a diffusio-phoretic motion by self-generating the gradients of concentrations and electric potential. Recent work has focused on simplified cases, such as a release of solely one type of ions or low surface fluxes
Externí odkaz:
http://arxiv.org/abs/2201.07776
In a shear flow particles migrate to their equilibrium positions in the microchannel. Here we demonstrate theoretically that if particles are inertial, this equilibrium can become unstable due to the Saffman lift force. We derive an expression for th
Externí odkaz:
http://arxiv.org/abs/2107.07319
Publikováno v:
Phys. Rev. E 104, 035107 (2021)
We revisit the theory of ion transport in parallel-plate channels and also discuss how the wettability of a solid and the mobility of adsorbed surface charges impact the transport of ions. It is shown that depending on the ratio of the electrostatic
Externí odkaz:
http://arxiv.org/abs/2106.07915