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dc.contributor.author
van Baalen, Carolina
dc.contributor.author
Uspal, William
dc.contributor.author
Popescu, Mihail Nicolae
dc.contributor.author
Isa, Lucio
dc.date.accessioned
2024-02-13T12:50:01Z
dc.date.available
2023-11-03T10:19:43Z
dc.date.available
2023-11-06T14:38:23Z
dc.date.available
2024-02-13T12:50:01Z
dc.date.issued
2023-12-07
dc.identifier.issn
1744-683X
dc.identifier.issn
1744-6848
dc.identifier.other
10.1039/d3sm01079a
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/639931
dc.identifier.doi
10.3929/ethz-b-000639931
dc.description.abstract
Efficient exploration of space is a paramount motive for active colloids in practical applications. Yet, introducing activity may lead to surface-bound states, hindering efficient space exploration. Here, we show that the interplay between self-motility and fuel-dependent affinity for surfaces affects how efficiently catalytically-active Janus microswimmers explore both liquid-solid and liquid-liquid interfaces decorated with arrays of similarly-sized obstacles. In a regime of constant velocity vs. fuel concentration, we find that microswimmer-obstacle interactions strongly depend on fuel concentration, leading to a counter-intuitive decrease in space exploration efficiency with increased available fuel for all interfaces. Using experiments and theoretical predictions, we attribute this phenomenon to a largely overlooked change in the surface properties of the microswimmer’s catalytic cap upon H2O2 exposure. Our findings have implications in the interpretation of experimental studies of catalytically active colloids, as well as new handles to control their dynamics in complex environments
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Royal Society of Chemistry
en_US
dc.rights.uri
http://creativecommons.org/licenses/by-nc/3.0/
dc.title
Transition from scattering to orbiting upon increasing the fuel concentration for an active Janus colloid moving at an obstacle-decorated interface
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution-NonCommercial 3.0 Unported
dc.date.published
2023-10-27
ethz.journal.title
Soft Matter
ethz.journal.volume
19
en_US
ethz.journal.issue
45
en_US
ethz.pages.start
8790
en_US
ethz.size
12 p.
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.grant
Active Matter: From Fundamental Science to Technological Applications
en_US
ethz.grant
Active and Adaptive: Reconfigurable Active Colloids with Internal Feedback and Communication Schemes
en_US
ethz.identifier.wos
ethz.identifier.scopus
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::02646 - Institut für Polymere / Institute of Polymers::09455 - Isa, Lucio / Isa, Lucio
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02160 - Dep. Materialwissenschaft / Dep. of Materials::02646 - Institut für Polymere / Institute of Polymers::09455 - Isa, Lucio / Isa, Lucio
en_US
ethz.grant.agreementno
812780
ethz.grant.agreementno
101001514
ethz.grant.fundername
EC
ethz.grant.fundername
EC
ethz.grant.funderDoi
10.13039/501100000780
ethz.grant.funderDoi
10.13039/501100000780
ethz.grant.program
H2020
ethz.grant.program
H2020
ethz.date.deposited
2023-11-03T10:19:43Z
ethz.source
FORM
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2024-02-13T12:50:03Z
ethz.rosetta.lastUpdated
2024-02-13T12:50:03Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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