Active colloids under geometrical constraints in viscoelastic media

Narinder, Narinder; Zhu, Wei-Jing; Bechinger, Clemens

Active colloids under geometrical constraints in viscoelastic media

Dateien

Narinder_2-1fe9c9e47lav55.pdfGröße: 1.75 MBDownloads: 108

Datum

2021

Autor:innen

Narinder, Narinder

Zhu, Wei-Jing

Bechinger, Clemens

Open Access-Veröffentlichung

Open Access Hybrid

Sammlungen

Physik

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

The European physical journal E, Soft matter. Springer. 2021, 44(3), 28. ISSN 1292-8941. eISSN 1292-895X. Available under: doi: 10.1140/epje/s10189-021-00033-w

Zusammenfassung

We study the behavior of active particles (APs) moving in a viscoelastic fluid in the presence of geometrical confinements. Upon approaching a flat wall, we find that APs slow down due to compression of the enclosed viscoelastic fluid. In addition, they receive a viscoelastic torque leading to sudden orientational changes and departure from walls. Based on these observations, we develop a numerical model which can also be applied to other geometries and yields good agreement with experimental data. Our results demonstrate, that APs are able to move through complex geometrical structures more effectively when suspended in a viscoelastic compared to a Newtonian fluid.

Fachgebiet (DDC)

530 Physik

Zitieren

ISO 690

NARINDER, Narinder, Wei-Jing ZHU, Clemens BECHINGER, 2021. Active colloids under geometrical constraints in viscoelastic media. In: The European physical journal E, Soft matter. Springer. 2021, 44(3), 28. ISSN 1292-8941. eISSN 1292-895X. Available under: doi: 10.1140/epje/s10189-021-00033-w

BibTex

@article{Narinder2021-03-11Activ-53380,
  year={2021},
  doi={10.1140/epje/s10189-021-00033-w},
  title={Active colloids under geometrical constraints in viscoelastic media},
  number={3},
  volume={44},
  issn={1292-8941},
  journal={The European physical journal E, Soft matter},
  author={Narinder, Narinder and Zhu, Wei-Jing and Bechinger, Clemens},
  note={Article Number: 28}
}

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