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dc.contributor.author
Demirors, Ahmet F.
dc.contributor.author
Akan, Mehmet Tolga
dc.contributor.author
Poloni, Erik
dc.contributor.author
Studart, André R.
dc.date.accessioned
2020-12-15T08:23:55Z
dc.date.available
2018-06-30T02:29:30Z
dc.date.available
2018-07-10T10:37:37Z
dc.date.available
2020-12-08T10:54:54Z
dc.date.available
2020-12-15T08:23:55Z
dc.date.issued
2018-06-21
dc.identifier.issn
1744-683X
dc.identifier.issn
1744-6848
dc.identifier.other
10.1039/c8sm00513c
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/273143
dc.description.abstract
Active colloids show non-equilibrium behavior that departs from classical Brownian motion, thus providing a platform for novel fundamental phenomena and for enticing possible applications ranging from water treatment to medicine and microrobotics. Although the physics, motion mechanisms and guidance have been extensively investigated, active colloids are rarely exploited to simultaneously guide and transport micron-sized objects in a controllable and reversible manner. Here, we use autonomous active Janus particles as colloidal shuttles to controllably transport cargo at the microscale using external electric and magnetic fields. The active motion arises from the metallodielectric characteristics of the Janus particles, which allows them to also trap, transport and release cargo particles through dielectrophoretic interactions induced by an AC electric field. The ferromagnetic nature of the nickel layer that forms the metallic hemisphere of the Janus colloids provides an additional mechanism to direct the motion of the shuttle using an external magnetic field. With this highly programmable colloidal system, we are able to harness active colloid motion and use it to transport cargo particles to specific destinations through a pre-defined route. A simple analytical model is derived to successfully describe the motion of the shuttle–cargo assembly in response to the applied electrical field. The high level of control on cargo pick-up, transport and release leads to a powerful delivery tool, which could eventually be used in microactuators, microfluidics or for controlled delivery within organ-on-a-chip devices.
en_US
dc.language.iso
en
en_US
dc.publisher
Royal Society of Chemistry
en_US
dc.title
Active cargo transport with Janus colloidal shuttles using electric and magnetic fields
en_US
dc.type
Journal Article
dc.date.published
2018-05-17
ethz.journal.title
Soft Matter
ethz.journal.volume
14
en_US
ethz.journal.issue
23
en_US
ethz.pages.start
4741
en_US
ethz.pages.end
4749
en_US
ethz.identifier.wos
ethz.publication.place
Cambridge
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02160 - Dep. Materialwissenschaft / Dep. of Materials::03831 - Studart, André R. / Studart, André R.
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02160 - Dep. Materialwissenschaft / Dep. of Materials::03831 - Studart, André R. / Studart, André R.
ethz.date.deposited
2018-06-30T02:29:52Z
ethz.source
WOS
ethz.eth
yes
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2018-07-10T10:37:41Z
ethz.rosetta.lastUpdated
2021-02-15T22:31:42Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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