28 citations · 111 across the 14 of their papers we have counts for
16 papers
The Diffuse Layer of Thin Cylinders: Beyond the Counterion Condensation Paradigm
Olga I. Vinogradova, Elena F. Silkina
For over half a century, the counterion condensation theory has served as the dominant view for highly charged cylinders, prescribing a sharp charge renormalization based on the id…
Surface Charge--Potential Relation for Spherical Particles in Electrolyte Solutions
Olga I. Vinogradova, Elena F. Silkina
Predicting the relationship between surface charge density and electrostatic potential for spherical particles remains a fundamental challenge in colloid science. Because the gover…
Diffusioosmosis of electrolyte solutions in axisymmetric channels
Elena F. Silkina, Evgeny S. Asmolov, Olga I. Vinogradova
We present a theory of a flow of salt solutions in long axisymmetric channels induced by concentration and pressure drops between their ends. The consideration is restricted to thi…
Tuning diffusioosmosis of electrolyte solutions by hydrostatic pressure
Elena F. Silkina, Evgeny S. Asmolov, Olga I. Vinogradova
When two reservoirs of a distinct salinity are connected by channels or pores, a fluid flow termed diffusio-osmotic is generated. This article investigates the flow emerging in an…
Diffusioosmosis of electrolyte solutions in uniformly charged channels
Evgeny S. Asmolov, Elena F. Silkina, Olga I. Vinogradova
When the concentration of electrolyte solution varies along the channel the forces arise that drag the fluid toward the higher or lower concentration region inducing a flow termed…
Enhanced zeta potentials caused by surface ion mobilities
Evgeny S. Asmolov, Elena F. Silkina, Olga I. Vinogradova
The electro-hydrodynamics near conducting walls is revisited. Attention is focused on the impact of an explicit diffuse Stern layer, which permittivity and viscosity differ from th…
Comment on "Conductivity of Concentrated Electrolytes"
Olga I Vinogradova, Elena F Silkina
We argue that the analytical expression for electrolyte conductivity derived by Avni et al. (arXiv:2110.07008) does not apply at molar concentrations.
Surface potentials of conductors in electrolyte solutions
Olga I. Vinogradova, Elena F. Silkina, Evgeny S. Asmolov
When we place conducting bodies in electrolyte solutions, their surface potential appears to be much smaller in magnitude than the intrinsic one and normally does not o…
Conductivity of concentrated salt solutions
Olga I Vinogradova, Elena F Silkina
The conductivity of concentrated salt solutions has posed a real puzzle for theories of electrolytes. Despite a quantitative understanding of dilute solutions, an analytical theory…
Electrophoresis of ions and electrolyte conductivity: from bulk to nanochannels
Olga I. Vinogradova, Elena F. Silkina
When electrolyte solutions are confined in micro- and nanochannels their conductivity is significantly different from those in a bulk phase. Here we revisit the theory of this phen…
Slippery and mobile hydrophobic electrokinetics: from single walls to nanochannels
Olga I. Vinogradova, Elena F. Silkina, Evgeny S. Asmolov
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, couple…
Transport of ions in hydrophobic nanotubes
Olga I. Vinogradova, Elena F. Silkina, Evgeny S. Asmolov
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 mo…
Enhanced transport of ions by tuning surface properties of the nanochannel
Olga I. Vinogradova, Elena F. Silkina, Evgeny S. Asmolov
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…
Surface and zeta potentials of charged permeable nanocoatings
Elena F. Silkina, Naren Bag, Olga I. Vinogradova
An electrokinetic (zeta) potential of charged permeable porous films on solid supports generally exceeds their surface potential, which often builds up to a quite high value itself…
Achieving large zeta-potentials with charged porous surfaces
Olga I. Vinogradova, Elena F. Silkina, Naren Bag +1
We discuss an electro-osmotic flow near charged porous coatings of a finite hydrodynamic permeability, impregnated with an outer electrolyte solution. It is shown that their electr…
Electro-osmotic properties of porous permeable films
Elena F. Silkina, Naren Bag, Olga I. Vinogradova
Permeable porous coatings on a flat solid support significantly impact its electrostatic and electrokinetic properties. Existing work has focused on simplified cases, such as weakl…