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Article: Activity-assisted barrier crossing of self-propelled colloids over parallel microgrooves

TitleActivity-assisted barrier crossing of self-propelled colloids over parallel microgrooves
Authors
Issue Date20-Mar-2023
PublisherAmerican Physical Society
Citation
Physical Review E, 2023, v. 107, n. 3 How to Cite?
Abstract

We report a systematic study of the dynamics of self-propelled particles (SPPs) over a one-dimensional periodic potential landscape U0(x), which is fabricated on a microgroove-patterned polydimethylsiloxane (PDMS) substrate. From the measured nonequilibrium probability density function P(x;F0) of the SPPs, we find that the escape dynamics of the slow rotating SPPs across the potential landscape can be described by an effective potential Ueff(x;F0), once the self-propulsion force F0 is included into the potential under the fixed angle approximation. This work demonstrates that the parallel microgrooves provide a versatile platform for a quantitative understanding of the interplay among the self-propulsion force F0, spatial confinement by U0(x), and thermal noise, as well as its effects on activity-assisted escape dynamics and transport of the SPPs.


Persistent Identifierhttp://hdl.handle.net/10722/340905
ISSN
2023 Impact Factor: 2.2
2023 SCImago Journal Rankings: 0.805
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorWen, Yan-
dc.contributor.authorLi, Zhihao-
dc.contributor.authorWang, Haiqin-
dc.contributor.authorZheng, Jing-
dc.contributor.authorTang, Jinyao-
dc.contributor.authorLai, Pik-Yin-
dc.contributor.authorXu, Xinpeng-
dc.contributor.authorTong, Penger-
dc.date.accessioned2024-03-11T10:48:10Z-
dc.date.available2024-03-11T10:48:10Z-
dc.date.issued2023-03-20-
dc.identifier.citationPhysical Review E, 2023, v. 107, n. 3-
dc.identifier.issn2470-0045-
dc.identifier.urihttp://hdl.handle.net/10722/340905-
dc.description.abstract<p>We report a systematic study of the dynamics of self-propelled particles (SPPs) over a one-dimensional periodic potential landscape U0(x), which is fabricated on a microgroove-patterned polydimethylsiloxane (PDMS) substrate. From the measured nonequilibrium probability density function P(x;F0) of the SPPs, we find that the escape dynamics of the slow rotating SPPs across the potential landscape can be described by an effective potential Ueff(x;F0), once the self-propulsion force F0 is included into the potential under the fixed angle approximation. This work demonstrates that the parallel microgrooves provide a versatile platform for a quantitative understanding of the interplay among the self-propulsion force F0, spatial confinement by U0(x), and thermal noise, as well as its effects on activity-assisted escape dynamics and transport of the SPPs.<br></p>-
dc.languageeng-
dc.publisherAmerican Physical Society-
dc.relation.ispartofPhysical Review E-
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.-
dc.titleActivity-assisted barrier crossing of self-propelled colloids over parallel microgrooves-
dc.typeArticle-
dc.identifier.doi10.1103/PhysRevE.107.L032601-
dc.identifier.scopuseid_2-s2.0-85151319917-
dc.identifier.volume107-
dc.identifier.issue3-
dc.identifier.eissn2470-0053-
dc.identifier.isiWOS:000956714000003-
dc.identifier.issnl2470-0045-

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