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dc.contributor.authorLi, Haiwang
dc.contributor.authorWong, Teck Neng
dc.contributor.authorNguyen, Nam-Trung
dc.date.accessioned2017-05-03T13:15:01Z
dc.date.available2017-05-03T13:15:01Z
dc.date.issued2009
dc.date.modified2014-08-13T23:50:43Z
dc.identifier.issn1613-4982
dc.identifier.doi10.1007/s10404-009-0402-0
dc.identifier.urihttp://hdl.handle.net/10072/62190
dc.description.abstractThis paper presents theoretical and experimental investigations on electroosmotic control of stream width in hydrodynamic focusing. In the experiments, three liquids (aqueous NaCl, aqueous glycerol and aqueous NaCl) are introduced by syringe pumps to flow side by side in a straight rectangular microchannel. External electric fields are applied on the two aqueous NaCl streams. Under the same inlet volumetric flow rates, the applied electric fields are varied to control the interface positions and consequently the width of the focused aqueous glycerol stream. The electroosmotic effect on the width of the aqueous glycerol is measured using fluorescence imaging technique. The electroosmotic effect under different flow rates, different viscosity, and aspect ratio are investigated. The results indicate that the electroosmotic effect on the pressure-driven flow becomes weaker with the increase in flow rates, viscosity ratio or aspect ratio of the channel. The measured results of the focused width of the non-conducting fluid agree well with the analytical model.
dc.description.peerreviewedYes
dc.description.publicationstatusYes
dc.format.extent675514 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglish
dc.publisherSpringer
dc.publisher.placeGermany
dc.relation.ispartofstudentpublicationN
dc.relation.ispartofpagefrom489
dc.relation.ispartofpageto497
dc.relation.ispartofissue4
dc.relation.ispartofjournalMicrofluidics and Nanofluidics
dc.relation.ispartofvolume7
dc.rights.retentionY
dc.subject.fieldofresearchInterdisciplinary Engineering not elsewhere classified
dc.subject.fieldofresearchMechanical Engineering
dc.subject.fieldofresearchInterdisciplinary Engineering
dc.subject.fieldofresearchNanotechnology
dc.subject.fieldofresearchcode091599
dc.subject.fieldofresearchcode0913
dc.subject.fieldofresearchcode0915
dc.subject.fieldofresearchcode1007
dc.titleElectroosmotic control of width and position of liquid streams in hydrodynamic focusing
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.rights.copyright© 2009 Springer Berlin Heidelberg. This is an electronic version of an article published in Microfluidics and Nanofluidics, Volume 7, Issue 4, pp 489-497, 2009. Microfluidics and Nanofluidics is available online at: http://link.springer.com/ with the open URL of your article.
gro.hasfulltextFull Text
gro.griffith.authorNguyen, Nam-Trung


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