Mostrar el registro sencillo del ítem

Artículo

dc.creatorFernández Mateo, Raúles
dc.creatorCalero, Víctores
dc.creatorMorgan, Hyweles
dc.creatorGarcía Sánchez, Pabloes
dc.creatorRamos Reyes, Antonioes
dc.date.accessioned2023-01-19T14:23:55Z
dc.date.available2023-01-19T14:23:55Z
dc.date.issued2022
dc.identifier.citationFernández Mateo, R., Calero, V., Morgan, H., García Sánchez, P. y Ramos Reyes, A. (2022). Wall Repulsion of Charged Colloidal Particles during Electrophoresis in Microfluidic Channels. Physical Review Letters, 128 (7), 074501. https://doi.org/10.1103/PhysRevLett.128.074501.
dc.identifier.issn0031-9007es
dc.identifier.issn1079-7114es
dc.identifier.urihttps://hdl.handle.net/11441/141592
dc.description.abstractElectrophoresis describes the motion of charged particles suspended in electrolytes when subjected to an external electric field. Previous experiments have shown that particles undergoing electrophoresis are repelled from nearby channel walls, contrary to the standard description of electrophoresis that predicts no hydrodynamic repulsion. Dielectrophoretic (DEP) repulsive forces have been commonly invoked as the cause of this wall repulsion. We show that DEP forces can only account for this wall repulsion at high frequencies of applied electric field. In the presence of a low-frequency field, quadrupolar electro-osmotic flows are observed around the particles. We experimentally demonstrate that these hydrodynamic flows are the cause of the widely observed particle-wall interaction. This hydrodynamic wall repulsion should be considered in the design and application of electric-field-driven manipulation of particles in microfluidic devices.es
dc.description.sponsorshipMinisterio de Ciencia e Innovación PGC2018-099217-B-I00, 10.13039/501100011033es
dc.formatapplication/pdfes
dc.format.extent5 p.es
dc.language.isoenges
dc.publisherAmerican Physical Societyes
dc.relation.ispartofPhysical Review Letters, 128 (7), 074501.
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.titleWall Repulsion of Charged Colloidal Particles during Electrophoresis in Microfluidic Channelses
dc.typeinfo:eu-repo/semantics/articlees
dcterms.identifierhttps://ror.org/03yxnpp24
dc.type.versioninfo:eu-repo/semantics/publishedVersiones
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses
dc.contributor.affiliationUniversidad de Sevilla. Departamento de Electrónica y Electromagnetismoes
dc.relation.projectIDPGC2018-099217-B-I00es
dc.relation.projectID10.13039/501100011033es
dc.relation.publisherversionhttps://dx.doi.org/10.1103/PhysRevLett.128.074501es
dc.identifier.doi10.1103/PhysRevLett.128.074501es
dc.journaltitlePhysical Review Letterses
dc.publication.volumen128es
dc.publication.issue7es
dc.publication.initialPage074501es
dc.contributor.funderMinisterio de Ciencia e Innovación (MICIN). Españaes
dc.description.awardwinningPremio Anual Publicación Científica Destacada de la US. Facultad de Física

FicherosTamañoFormatoVerDescripción
Wall Repulsion of Charged.pdf770.8KbIcon   [PDF] Ver/Abrir  

Este registro aparece en las siguientes colecciones

Mostrar el registro sencillo del ítem

Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Excepto si se señala otra cosa, la licencia del ítem se describe como: Attribution-NonCommercial-NoDerivatives 4.0 Internacional