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dc.contributor.authorVakarelski, Ivan Uriev
dc.contributor.authorLi, Erqiang
dc.contributor.authorAbdel-Fattah, Amr I.
dc.contributor.authorThoroddsen, Sigurdur T
dc.date.accessioned2016-06-23T10:57:29Z
dc.date.available2016-06-23T10:57:29Z
dc.date.issued2016-06-19
dc.identifier.citationAcoustic separation of oil droplets, colloidal particles and their mixtures in a microfluidic cell 2016 Colloids and Surfaces A: Physicochemical and Engineering Aspects
dc.identifier.issn09277757
dc.identifier.doi10.1016/j.colsurfa.2016.06.013
dc.identifier.urihttp://hdl.handle.net/10754/614415
dc.description.abstractHere we report direct macroscopic and microscopic observations of acoustic driven separation of dodecane oil droplets in water in the presence and absence of colloidal silica particles suspended in the water phase. The experiments were conducted in a simple rectangular channel glass microfluidic cell in which an ultrasound standing wave pattern was generated at 300 KHz frequency. The separation process of both oil droplets and colloidal particles inside the cell was recorded using a high-speed video camera equipped with a macro-objective lens for macroscopic observation or with a high-speed camera attached to an inverted optical microscope for a higher resolution microscopic observation. We characterize the clustering process in the case of emulsion droplets or solid colloidal particles and ultimately demonstrate the emulsion droplets separation from the solid particles in the mixtures based on their different acoustic contrast factors. Finally, we conduct proof of concept experiment to show that the same approach can be used in a continuous fluid flow process.
dc.description.sponsorshipResearch reported in this publication was supported by King Abdullah University of Science and Technology (KAUST) and Saudi Aramco, EXPEC Advanced Research Center under contract No. 6600024505.
dc.language.isoen
dc.publisherElsevier BV
dc.relation.urlhttp://linkinghub.elsevier.com/retrieve/pii/S0927775716304551
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Colloids and Surfaces A: Physicochemical and Engineering Aspects. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Colloids and Surfaces A: Physicochemical and Engineering Aspects, 15 June 2016. DOI: 10.1016/j.colsurfa.2016.06.013
dc.subjectAcoustic separation
dc.subjectMicrofluidics
dc.subjectEmulsion droplets
dc.subjectSilica colloids
dc.subjectHigh-speed imaging
dc.titleAcoustic separation of oil droplets, colloidal particles and their mixtures in a microfluidic cell
dc.typeArticle
dc.contributor.departmentMechanical Engineering Program
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Division
dc.identifier.journalColloids and Surfaces A: Physicochemical and Engineering Aspects
dc.eprint.versionPost-print
dc.contributor.institutionSaudi Aramco EXPEC-ARC, Dhahran 31311, Saudi Arabia
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)
kaust.personVakarelski, Ivan Uriev
kaust.personLi, Erqiang
kaust.personThoroddsen, Sigurdur T.
dc.date.published-online2016-06-19
dc.date.published-print2016-10


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