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Nanoparticle Taylor dispersion near charged surfaces with an open boundary

hal.structure.identifierGulliver (UMR 7083)
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorVILQUIN, Alexandre
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
hal.structure.identifierGulliver (UMR 7083)
hal.structure.identifierUniversity of Twente
dc.contributor.authorBERTIN, Vincent
hal.structure.identifierGulliver (UMR 7083)
dc.contributor.authorRAPHAËL, Elie
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorDEAN, David
hal.structure.identifierLaboratoire Ondes et Matière d'Aquitaine [LOMA]
dc.contributor.authorSALEZ, Thomas
hal.structure.identifierGulliver (UMR 7083)
hal.structure.identifierIPGG
dc.contributor.authorMCGRAW, Joshua
dc.date.created2022-06-12
dc.date.issued2023
dc.identifier.issn0031-9007
dc.description.abstractEnThe dispersive spreading of microscopic particles in shear flows is influenced both by advection and thermal motion. At the nanoscale, interactions between such particles and their confining boundaries become unavoidable. We address the roles of electrostatic repulsion and absorption on the spatial distribution and dispersion of charged nanoparticles in near-surface shear flows, observed under evanescent illumination. The electrostatic repulsion between particles and the lower charged surface is tuned by varying electrolyte concentrations. Particles leaving the field of vision can be neglected from further analysis, such that the experimental ensemble is equivalent to that of Taylor dispersion with absorption. These two ingredients modify the particle distribution, deviating strongly from the Gibbs-Boltzmann one at the nanoscale studied here. The overall effect is to restrain the accessible space available to particles, leading to a striking, ten-fold reduction in the spreading dynamics as compared to the non-interacting case.
dc.description.sponsorshipConfinement des Polymères en Solution : Recherches Optiques Avancées Sous Confinement Extrême - ANR-19-CE06-0021
dc.description.sponsorshipMouvement brownien au voisinage d'interfaces molles - ANR-21-ERCC-0010
dc.description.sponsorshipCapteur Interférométrique de Contraintes de Surface - ANR-21-CE06-0029
dc.description.sponsorshipFrottements dans les systèmes complexes - ANR-21-CE06-0039
dc.language.isoen
dc.publisherAmerican Physical Society
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.subject.enTaylor dispersion
dc.subject.enShear flows
dc.subject.enNanoparticle dispersion
dc.subject.enMicrofluidics
dc.title.enNanoparticle Taylor dispersion near charged surfaces with an open boundary
dc.typeArticle de revue
dc.identifier.doi10.1103/PhysRevLett.130.038201
dc.subject.halPhysique [physics]/Physique [physics]/Dynamique des Fluides [physics.flu-dyn]
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Matière Molle [cond-mat.soft]
dc.subject.halPhysique [physics]/Matière Condensée [cond-mat]/Mécanique statistique [cond-mat.stat-mech]
dc.identifier.arxiv2206.07413
dc.description.sponsorshipEuropeBrownian Motion near Soft Interfaces
bordeaux.journalPhysical Review Letters
bordeaux.page038201
bordeaux.volume130
bordeaux.issue3
bordeaux.peerReviewedoui
hal.identifierhal-03694008
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03694008v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Physical%20Review%20Letters&rft.date=2023&rft.volume=130&rft.issue=3&rft.spage=038201&rft.epage=038201&rft.eissn=0031-9007&rft.issn=0031-9007&rft.au=VILQUIN,%20Alexandre&BERTIN,%20Vincent&RAPHA%C3%8BL,%20Elie&DEAN,%20David&SALEZ,%20Thomas&rft.genre=article


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