---
_id: '9050'
abstract:
- lang: eng
text: Self-propelled particles can exhibit surprising non-equilibrium behaviors,
and how they interact with obstacles or boundaries remains an important open problem.
Here we show that chemically propelled micro-rods can be captured, with little
change in their speed, into close orbits around solid spheres resting on or near
a horizontal plane. We show that this interaction between sphere and particle
is short-range, occurring even for spheres smaller than the particle length, and
for a variety of sphere materials. We consider a simple model, based on lubrication
theory, of a force- and torque-free swimmer driven by a surface slip (the phoretic
propulsion mechanism) and moving near a solid surface. The model demonstrates
capture, or movement towards the surface, and yields speeds independent of distance.
This study reveals the crucial aspects of activity–driven interactions of self-propelled
particles with passive objects, and brings into question the use of colloidal
tracers as probes of active matter.
article_number: '1784'
article_processing_charge: No
article_type: original
author:
- first_name: Daisuke
full_name: Takagi, Daisuke
last_name: Takagi
- first_name: Jérémie A
full_name: Palacci, Jérémie A
id: 8fb92548-2b22-11eb-b7c1-a3f0d08d7c7d
last_name: Palacci
orcid: 0000-0002-7253-9465
- first_name: Adam B.
full_name: Braunschweig, Adam B.
last_name: Braunschweig
- first_name: Michael J.
full_name: Shelley, Michael J.
last_name: Shelley
- first_name: Jun
full_name: Zhang, Jun
last_name: Zhang
citation:
ama: Takagi D, Palacci JA, Braunschweig AB, Shelley MJ, Zhang J. Hydrodynamic capture
of microswimmers into sphere-bound orbits. Soft Matter. 2014;10(11). doi:10.1039/c3sm52815d
apa: Takagi, D., Palacci, J. A., Braunschweig, A. B., Shelley, M. J., & Zhang,
J. (2014). Hydrodynamic capture of microswimmers into sphere-bound orbits. Soft
Matter. Royal Society of Chemistry . https://doi.org/10.1039/c3sm52815d
chicago: Takagi, Daisuke, Jérémie A Palacci, Adam B. Braunschweig, Michael J. Shelley,
and Jun Zhang. “Hydrodynamic Capture of Microswimmers into Sphere-Bound Orbits.”
Soft Matter. Royal Society of Chemistry , 2014. https://doi.org/10.1039/c3sm52815d.
ieee: D. Takagi, J. A. Palacci, A. B. Braunschweig, M. J. Shelley, and J. Zhang,
“Hydrodynamic capture of microswimmers into sphere-bound orbits,” Soft Matter,
vol. 10, no. 11. Royal Society of Chemistry , 2014.
ista: Takagi D, Palacci JA, Braunschweig AB, Shelley MJ, Zhang J. 2014. Hydrodynamic
capture of microswimmers into sphere-bound orbits. Soft Matter. 10(11), 1784.
mla: Takagi, Daisuke, et al. “Hydrodynamic Capture of Microswimmers into Sphere-Bound
Orbits.” Soft Matter, vol. 10, no. 11, 1784, Royal Society of Chemistry
, 2014, doi:10.1039/c3sm52815d.
short: D. Takagi, J.A. Palacci, A.B. Braunschweig, M.J. Shelley, J. Zhang, Soft
Matter 10 (2014).
date_created: 2021-02-01T13:43:31Z
date_published: 2014-03-21T00:00:00Z
date_updated: 2023-02-23T13:47:35Z
day: '21'
doi: 10.1039/c3sm52815d
extern: '1'
external_id:
arxiv:
- '1309.5662'
pmid:
- '24800268'
intvolume: ' 10'
issue: '11'
keyword:
- General Chemistry
- Condensed Matter Physics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1309.5662
month: '03'
oa: 1
oa_version: Preprint
pmid: 1
publication: Soft Matter
publication_identifier:
eissn:
- 1744-6848
issn:
- 1744-683X
publication_status: published
publisher: 'Royal Society of Chemistry '
quality_controlled: '1'
scopus_import: '1'
status: public
title: Hydrodynamic capture of microswimmers into sphere-bound orbits
type: journal_article
user_id: D865714E-FA4E-11E9-B85B-F5C5E5697425
volume: 10
year: '2014'
...