Artículo
Stationary electro-osmotic flow driven by AC fields around charged dielectric spheres
Autor/es | Fernández Mateo, Raúl
García Sánchez, Pablo Calero Martín, Víctor Morgan, Hywel Ramos Reyes, Antonio |
Departamento | Universidad de Sevilla. Departamento de Electrónica y Electromagnetismo |
Fecha de publicación | 2021 |
Fecha de depósito | 2021-11-30 |
Publicado en |
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Premios | Premio Mensual Publicación Científica Destacada de la US. Facultad de Física |
Resumen | We experimentally demonstrate quadrupolar electro-osmotic flows around charged dielectric microspheres immersed in an electrolyte when subjected to an alternating current electric field. We present an electrokinetic model ... We experimentally demonstrate quadrupolar electro-osmotic flows around charged dielectric microspheres immersed in an electrolyte when subjected to an alternating current electric field. We present an electrokinetic model that predicts the flow characteristics based on the phenomena of surface conductance and polarization of the electrolyte concentration around the particles. We refer to these flows as concentration polarization electro-osmosis. We anticipate that these flows may play a major role in the electric-field-induced assembly of colloids and on the electrokinetic manipulation of dielectric micro- and nanoparticles. |
Agencias financiadoras | Agencia Estatal de Investigación. España PGC2018-099217-B-I00 |
Identificador del proyecto | PGC2018-099217-B-I00 |
Cita | Fernández Mateo, R., García Sánchez, P., Calero Martín, V., Morgan, H. y Ramos Reyes, A. (2021). Stationary electro-osmotic flow driven by AC fields around charged dielectric spheres. Journal of Fluid Mechanics, 924, 650. |
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