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Thermocapillary valve for droplet production and sorting

hal.structure.identifierLaboratoire d'hydrodynamique [LadHyX]
dc.contributor.authorBAROUD, Charles
hal.structure.identifierCentre de physique moléculaire optique et hertzienne [CPMOH]
dc.contributor.authorDELVILLE, Jean-Pierre
hal.structure.identifierLaboratoire Jean Alexandre Dieudonné [JAD]
dc.contributor.authorGALLAIRE, François
hal.structure.identifierCentre de physique moléculaire optique et hertzienne [CPMOH]
dc.contributor.authorWUNENBURGER, Régis
dc.date.issued2007-04-05
dc.identifier.issn1539-3755
dc.description.abstractEnDroplets are natural candidates for use as microfluidic reactors, if active control of their formation and transport can be achieved. We show here that localized heating from a laser can block the motion of a water-oil interface, acting as a microfluidic valve for two-phase flows. A theoretical model is developed to explain the forces acting on a drop due to thermocapillary flow, predicting a scaling law that favors miniaturization. Finally, we show how the laser forcing can be applied to sorting drops, thus demonstrating how it may be integrated in complex droplet microfluidic systems.
dc.language.isoen
dc.publisherAmerican Physical Society
dc.title.enThermocapillary valve for droplet production and sorting
dc.typeArticle de revue
dc.identifier.doi10.1103/PhysRevE.75.046302
dc.subject.halPhysique [physics]/Physique [physics]/Optique [physics.optics]
dc.subject.halPhysique [physics]/Physique [physics]/Dynamique des Fluides [physics.flu-dyn]
bordeaux.journalPhysical Review E : Statistical, Nonlinear, and Soft Matter Physics
bordeaux.page046302(5)
bordeaux.volume75
bordeaux.issue4
bordeaux.peerReviewedoui
hal.identifierhal-00144332
hal.version1
hal.popularnon
hal.audienceNon spécifiée
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-00144332v1
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