Acoustic separation of oil droplets, colloidal particles and their mixtures in a microfluidic cell

Handle URI:
http://hdl.handle.net/10754/614415
Title:
Acoustic separation of oil droplets, colloidal particles and their mixtures in a microfluidic cell
Authors:
Vakarelski, Ivan Uriev ( 0000-0001-9244-9160 ) ; Li, Erqiang ( 0000-0002-5003-0756 ) ; Abdel-Fattah, Amr I.; Thoroddsen, Sigurdur T. ( 0000-0001-6997-4311 )
Abstract:
Here 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.
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Citation:
Acoustic separation of oil droplets, colloidal particles and their mixtures in a microfluidic cell 2016 Colloids and Surfaces A: Physicochemical and Engineering Aspects
Publisher:
Elsevier BV
Journal:
Colloids and Surfaces A: Physicochemical and Engineering Aspects
Issue Date:
15-Jun-2016
DOI:
10.1016/j.colsurfa.2016.06.013
Type:
Article
ISSN:
09277757
Sponsors:
Research 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.
Additional Links:
http://linkinghub.elsevier.com/retrieve/pii/S0927775716304551
Appears in Collections:
Articles

Full metadata record

DC FieldValue Language
dc.contributor.authorVakarelski, Ivan Urieven
dc.contributor.authorLi, Erqiangen
dc.contributor.authorAbdel-Fattah, Amr I.en
dc.contributor.authorThoroddsen, Sigurdur T.en
dc.date.accessioned2016-06-23T10:57:29Z-
dc.date.available2016-06-23T10:57:29Z-
dc.date.issued2016-06-15-
dc.identifier.citationAcoustic separation of oil droplets, colloidal particles and their mixtures in a microfluidic cell 2016 Colloids and Surfaces A: Physicochemical and Engineering Aspectsen
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.en
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.en
dc.language.isoenen
dc.publisherElsevier BVen
dc.relation.urlhttp://linkinghub.elsevier.com/retrieve/pii/S0927775716304551en
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.2016.06.013en
dc.subjectAcoustic separationen
dc.subjectMicrofluidicsen
dc.subjectEmulsion dropletsen
dc.subjectSilica colloidsen
dc.subjectHigh-speed imagingen
dc.titleAcoustic separation of oil droplets, colloidal particles and their mixtures in a microfluidic cellen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalColloids and Surfaces A: Physicochemical and Engineering Aspectsen
dc.eprint.versionPost-printen
dc.contributor.institutionSaudi Aramco EXPEC-ARC, Dhahran 31311, Saudi Arabiaen
dc.contributor.affiliationKing Abdullah University of Science and Technology (KAUST)en
kaust.authorVakarelski, Ivan Urieven
kaust.authorLi, Erqiangen
kaust.authorThoroddsen, Sigurdur T.en
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