Publication:
Ferrofluid actuation with varying magnetic fields for micropumping applications

dc.contributor.coauthorKurtoglu, Evrim
dc.contributor.coauthorBilgin, Alp
dc.contributor.coauthorSesen, Muhsincan
dc.contributor.coauthorMısırlıoğlu, I. Burc
dc.contributor.coauthorYıldız, Mehmet
dc.contributor.coauthorKoşar, Ali
dc.contributor.departmentDepartment of Chemistry
dc.contributor.kuauthorAcar, Havva Funda Yağcı
dc.contributor.schoolcollegeinstituteCollege of Sciences
dc.date.accessioned2024-11-09T23:20:30Z
dc.date.issued2012
dc.description.abstractMagnetic nanoparticle suspensions and their manipulation are becoming an alternative research line. They have vital applications in the field of microfluidics such as microscale flow control in microfluidic circuits, actuation of fluids in microscale, and drug delivery mechanisms. In microscale, it is possible and beneficial to use magnetic fields as actuators of such ferrofluids, where these fluids could move along a dynamic gradient of magnetic field so that a micropump could be generated with this technique. Thus, magnetically actuated ferrofluids could have the potential to be used as an alternative micro pumping system. Magnetic actuation of nanofluids is becoming an emergent field that will open up new possibilities in various fields of engineering. Different families of devices actuating ferrofluids were designed and developed in this study to reveal this potential. A family of these devices actuates discrete plugs, whereas a second family of devices generates continuous flows in tubes of inner diameters ranging from 254 mu m to 1.56 mm. The devices were first tested with minitubes to prove the effectiveness of the proposed actuation method. The setups were then adjusted to conduct experiments on microtubes. Promising results were obtained from the experiments. Flow rates up to 120 and 0.135 mu l/s were achieved in minitubes and microtubes with modest maximum magnetic field magnitudes of 300 mT for discontinuous and continuous actuation, respectively. The proposed magnetic actuation method was proven to work as intended and is expected to be a strong alternative to the existing micropumping methods such as electromechanical, electrokinetic, and piezoelectric actuation. The results suggest that ferrofluids with magnetic nanoparticles merit more research efforts in micro pumping.
dc.description.indexedbyWOS
dc.description.indexedbyScopus
dc.description.issue4
dc.description.openaccessNO
dc.description.publisherscopeInternational
dc.description.sponsoredbyTubitakEuN/A
dc.description.sponsorshipSabanci University [IACF09-00642]
dc.description.sponsorshipTurkish Academy of Sciences (TUBA) Young Outstanding Researcher Support Programme (GEBIP) This work was supported by the Sabanci University Internal Research Grant, no: IACF09-00642 and Turkish Academy of Sciences (TUBA) Young Outstanding Researcher Support Programme (GEBIP). Graduate student support was provided by the Faculty of Engineering and Natural Sciences of Sabanci University and equipment support provided by Sabanci University Nanotechnology Research and Applications Center (SUNUM) is greatly appreciated.
dc.description.volume13
dc.identifier.doi10.1007/s10404-012-1008-5
dc.identifier.eissn1613-4990
dc.identifier.issn1613-4982
dc.identifier.quartileQ2
dc.identifier.scopus2-s2.0-84871786557
dc.identifier.urihttps://doi.org/10.1007/s10404-012-1008-5
dc.identifier.urihttps://hdl.handle.net/20.500.14288/10732
dc.identifier.wos310394400016
dc.keywordsMicrofluidics
dc.keywordsMicrochannel
dc.keywordsMagnetic actuation
dc.keywordsFerrofluids
dc.keywordsNanofluids
dc.keywordsPumps
dc.keywordsMagnetohydrodynamics
dc.keywordsFlow
dc.keywordsPump
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofMicrofluidics and Nanofluidics
dc.subjectNanoscience and nanotechnology
dc.subjectInstruments and instrumentation
dc.subjectPhysics, Fluids and plasmas
dc.titleFerrofluid actuation with varying magnetic fields for micropumping applications
dc.typeJournal Article
dspace.entity.typePublication
local.contributor.kuauthorAcar, Havva Funda Yağcı
local.publication.orgunit1College of Sciences
local.publication.orgunit2Department of Chemistry
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