Magnetic Microsphere-Based Mixers for Microdroplets

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dc.contributorVirginia Techen
dc.contributor.authorRoy, T.en
dc.contributor.authorSinha, Ashoken
dc.contributor.authorChakraborty, Shibajien
dc.contributor.authorGanguly, Ranjanen
dc.contributor.authorPuri, Ishwar K.en
dc.contributor.departmentBiomedical Engineering and Mechanicsen
dc.date.accessed2014-04-04en
dc.date.accessioned2014-04-24T18:34:15Zen
dc.date.available2014-04-24T18:34:15Zen
dc.date.issued2009-02-01en
dc.description.abstractWhile droplet-based microfluidic systems have several advantages over traditional flow-through devices, achieving adequate mixing between reagents inside droplet-based reactors remains challenging. We describe an active mixing approach based on the magnetic stirring of self-assembled chains of magnetic microspheres within the droplet as these stirrers experience a rotating magnetic field. We measure the mixing of a water-soluble dye in the droplet in terms of a dimensional mixing parameter as the field-rpm, fluid viscosity, and microsphere loading are parametrically varied. These show that the mixing rate has a maximum value at a critical Mason number that depends upon the operating conditions.en
dc.description.sponsorshipDepartment of Science and Technology, Indiaen
dc.description.sponsorshipSERC Fast Track Project for Young Scientists Scheme SR/FTP/ETA-07/2006en
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRoy, Tamal; Sinha, Ashok; Chakraborty, Sayan; et al., "magnetic microsphere-based mixers for microdroplets," Phys. Fluids 21, 027101 (2009); http://dx.doi.org/10.1063/1.3072602en
dc.identifier.doihttps://doi.org/10.1063/1.3072602en
dc.identifier.issn1070-6631en
dc.identifier.urihttp://hdl.handle.net/10919/47639en
dc.identifier.urlhttp://scitation.aip.org/content/aip/journal/pof2/21/2/10.1063/1.3072602en
dc.language.isoen_USen
dc.publisherAIP Publishingen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectDropsen
dc.subjectDyesen
dc.subjectMagnetohydrodynamicsen
dc.subjectMicrofluidicsen
dc.subjectMixingen
dc.subjectViscosityen
dc.subjectParamagnetic particlesen
dc.subjectDigital microfluidicsen
dc.subjectAnalysis systemsen
dc.subjectFielden
dc.subjectNanoparticlesen
dc.subjectEnhancementen
dc.subjectCapillariesen
dc.subjectDevicesen
dc.subjectChainsen
dc.subjectScaleen
dc.titleMagnetic Microsphere-Based Mixers for Microdropletsen
dc.title.serialPhysics of Fluidsen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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