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dc.contributor.authorZhu, Gui-Ping
dc.contributor.authorNam-Trung, Nguyen
dc.contributor.editorHarp Minhas
dc.date.accessioned2017-05-03T16:14:34Z
dc.date.available2017-05-03T16:14:34Z
dc.date.issued2012
dc.date.modified2013-10-16T22:30:16Z
dc.identifier.issn1473-0197
dc.identifier.doi10.1039/c2lc40818j
dc.identifier.urihttp://hdl.handle.net/10072/50064
dc.description.abstractThis paper reports the investigation of mixing phenomena caused by the interaction between a uniform magnetic field and a magnetic fluid in a microfluidic chamber. The flow system consists of a water-based ferrofluid and a mixture of DI water and glycerol. Under a uniform magnetic field, the mismatch in magnetization of the fluids leads to instability at the interface and subsequent rapid mixing. The mismatch of magnetization is determined by concentration of magnetic nanoparticles. Full mixing at a relatively low magnetic flux density up to 10 mT can be achieved. The paper discusses the impact of key parameters such as magnetic flux density, flow rate ratio and viscosity ratio on the mixing efficiency. Two main mixing regimes are observed. In the improved diffusive mixing regime under low field strength, magnetic particles of the ferrofluid migrate into the diamagnetic fluid. In the bulk transport regime under high field strength, the fluid system is mixed rapidly by magnetically induced secondary flow in the chamber. The mixing concept potentially provides a wireless solution for a lab-on-a-chip system that is low-cost, robust, free of induced heat and independent of pH level or ion concentration.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.format.extent1230816 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglish
dc.language.isoeng
dc.publisherRSC Publications
dc.publisher.placeUnited KIngdom
dc.relation.ispartofstudentpublicationY
dc.relation.ispartofpagefrom4772
dc.relation.ispartofpageto4780
dc.relation.ispartofissue22
dc.relation.ispartofjournalLab on a Chip
dc.relation.ispartofvolume12
dc.rights.retentionY
dc.subject.fieldofresearchChemical sciences
dc.subject.fieldofresearchEngineering
dc.subject.fieldofresearchMicroelectromechanical systems (MEMS)
dc.subject.fieldofresearchcode34
dc.subject.fieldofresearchcode40
dc.subject.fieldofresearchcode401705
dc.titleRapid magnetofluidic mixing in a uniform magnetic field
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.rights.copyright© 2012 Royal Society of Chemistry. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal website for access to the definitive, published version.
gro.date.issued2012
gro.hasfulltextFull Text
gro.griffith.authorNguyen, Nam-Trung


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