Zobrazeno 1 - 10
of 123
pro vyhledávání: '"Olga I. Vinogradova"'
Publikováno v:
Mathematics, Vol 10, Iss 9, p 1503 (2022)
Catalytic swimmers self-propel in electrolyte solutions thanks to an inhomogeneous ion release from their surface. Here, we consider the experimentally relevant limit of thin electrostatic diffuse layers, where the method of matched asymptotic expans
Externí odkaz:
https://doaj.org/article/c89ed829dec047d98df629a9d664fefa
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:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ff7915dd6f635449e845fa541adf9605
http://arxiv.org/abs/2205.14357
http://arxiv.org/abs/2205.14357
Autor:
Alexey Kopyshev, Olga I. Vinogradova, David Feldmann, Taras Y. Molotilin, Pooja Arya, Svetlana Santer, Nino Lomadze
Publikováno v:
Langmuir. 36:6994-7004
The repulsive surface forces, such as electrostatic or steric, acting between particles explain why they remain well separated in aqueous electrolyte solutions and are responsible for the stability of colloidal dispersions. However, the effective ran
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99bc18694c2f8fe6ad05e52afe5e0091
https://doi.org/10.1021/acs.langmuir.9b03270
https://doi.org/10.1021/acs.langmuir.9b03270
Publikováno v:
Physical Review E. 104
Motivated by recent observations of anomalously large deviations of the conductivity currents in confined systems from the bulk behavior, we revisit the theory of ion transport in parallel-plate channels and also discuss how the wettability of a soli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2ef0b6a4cf51c87f5e6105db858c47db
https://doi.org/10.1103/physreve.104.035107
https://doi.org/10.1103/physreve.104.035107
Publikováno v:
Physics of Fluids, 33(9):092008. American Institute of Physics
Physics of fluids 33(9), 092008-(2021). doi:10.1063/5.0063566
Physics of fluids 33(9), 092008-(2021). doi:10.1063/5.0063566
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:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::94e76c90147bfef3f226de0659046679
http://arxiv.org/abs/2107.07319
http://arxiv.org/abs/2107.07319
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. Recent work provided a quantitative understanding of zeta potentials
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2fcf42cfb36adb3daa2f96035c3cb76e
http://arxiv.org/abs/2012.12016
http://arxiv.org/abs/2012.12016
Publikováno v:
Physics of Fluids. 34:032011
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:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c9cd31c5bcd6bd851af5ea15112bda66
https://doi.org/10.1063/5.0085746
https://doi.org/10.1063/5.0085746
Autor:
Joachim Jelken, David Feldmann, Maren Umlandt, Nino Lomadze, Pooja Arya, Svetlana Santer, Evgeny S. Asmolov, Olga I. Vinogradova
Publikováno v:
The European Physical Journal. E, Soft Matter
We consider sedimented at a solid wall particles that are immersed in water containing small additives of photosensitive ionic surfactants. It is shown that illumination with an appropriate wavelength, a beam intensity profile, shape and size could l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6f24a857f86cc25a2836f6543e5265ab
http://arxiv.org/abs/2010.12465
http://arxiv.org/abs/2010.12465
Publikováno v:
Journal of Fluid Mechanics. 901
Lubricant-infused surfaces in an outer liquid flow generally reduce viscous drag. However, owing to the meniscus deformation, the infused state could collapse. Here we discuss the transition between infused and collapsed states of transverse shallow
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8fc300b53fa195e421741769e157abb1
https://doi.org/10.1017/jfm.2020.537
https://doi.org/10.1017/jfm.2020.537
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 electrokinetic (zeta) potential is generally augmented compared to the surfa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::74447d03b0bf25e25a4f78be794ea078
http://arxiv.org/abs/2008.04350
http://arxiv.org/abs/2008.04350