Swimming in a crystal

Aidan T. Brown; Ioana D. Vladescu; Angela Dawson; Teun Vissers; Jana Schwarz-Linek; Juho S. Lintuvuori; Wilson C K Poon

doi:10.1039/c5sm01831e

Swimming in a crystal

Aidan T. Brown^*, Ioana D. Vladescu, Angela Dawson, Teun Vissers, Jana Schwarz-Linek, Juho S. Lintuvuori, Wilson C K Poon

^*Corresponding author for this work

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract / Description of output

We study catalytic Janus particles and Escherichia coli bacteria swimming in a two-dimensional colloidal crystal. The Janus particles orbit individual colloids and hop between colloids stochastically, with a hopping rate that varies inversely with fuel (hydrogen peroxide) concentration. At high fuel concentration, these orbits are stable for 100s of revolutions, and the orbital speed oscillates periodically as a result of hydrodynamic, and possibly also phoretic, interactions between the swimmer and the six neighbouring colloids. Motile E. coli bacteria behave very differently in the same colloidal crystal: their circular orbits on plain glass are rectified into long, straight runs, because the bacteria are unable to turn corners inside the crystal.

Original language	English
Pages (from-to)	131-140
Number of pages	10
Journal	Soft Matter
Volume	12
Issue number	1
Early online date	25 Sept 2015
DOIs	https://doi.org/10.1039/c5sm01831e
Publication status	Published - 7 Jan 2016

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10.1039/c5sm01831eLicence: Creative Commons: Attribution (CC-BY)

c5sm01831eFinal published version, 3.79 MBLicence: Creative Commons: Attribution (CC-BY)

Design Principles for New Soft Materials
Cates, M., Allen, R., Clegg, P., Evans, M., MacPhee, C., Marenduzzo, D. & Poon, W.
EPSRC
7/12/11 → 6/06/17
Project: Research

Swimming In a Crystal
Brown, A. (Creator), Vladescu, I. D. (Creator), Dawson, A. (Creator), Vissers, T. (Creator), Schwarz-Linek, J. (Creator), Lintuvuori, J. (Creator) & Poon, W. (Creator), Edinburgh DataShare, 29 Sept 2015
DOI: 10.7488/ds/304
Dataset

Aidan Brown
- School of Physics and Astronomy - Chancellor's Fellow: Food and Rheology
Person: Academic: Research Active (Research Assistant)

Cite this

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title = "Swimming in a crystal",

abstract = "We study catalytic Janus particles and Escherichia coli bacteria swimming in a two-dimensional colloidal crystal. The Janus particles orbit individual colloids and hop between colloids stochastically, with a hopping rate that varies inversely with fuel (hydrogen peroxide) concentration. At high fuel concentration, these orbits are stable for 100s of revolutions, and the orbital speed oscillates periodically as a result of hydrodynamic, and possibly also phoretic, interactions between the swimmer and the six neighbouring colloids. Motile E. coli bacteria behave very differently in the same colloidal crystal: their circular orbits on plain glass are rectified into long, straight runs, because the bacteria are unable to turn corners inside the crystal.",

author = "Brown, {Aidan T.} and Vladescu, {Ioana D.} and Angela Dawson and Teun Vissers and Jana Schwarz-Linek and Lintuvuori, {Juho S.} and Poon, {Wilson C K}",

year = "2016",

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doi = "10.1039/c5sm01831e",

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journal = "Soft Matter",

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AU - Brown, Aidan T.

AU - Vladescu, Ioana D.

AU - Dawson, Angela

AU - Vissers, Teun

AU - Schwarz-Linek, Jana

AU - Lintuvuori, Juho S.

AU - Poon, Wilson C K

PY - 2016/1/7

Y1 - 2016/1/7

N2 - We study catalytic Janus particles and Escherichia coli bacteria swimming in a two-dimensional colloidal crystal. The Janus particles orbit individual colloids and hop between colloids stochastically, with a hopping rate that varies inversely with fuel (hydrogen peroxide) concentration. At high fuel concentration, these orbits are stable for 100s of revolutions, and the orbital speed oscillates periodically as a result of hydrodynamic, and possibly also phoretic, interactions between the swimmer and the six neighbouring colloids. Motile E. coli bacteria behave very differently in the same colloidal crystal: their circular orbits on plain glass are rectified into long, straight runs, because the bacteria are unable to turn corners inside the crystal.

AB - We study catalytic Janus particles and Escherichia coli bacteria swimming in a two-dimensional colloidal crystal. The Janus particles orbit individual colloids and hop between colloids stochastically, with a hopping rate that varies inversely with fuel (hydrogen peroxide) concentration. At high fuel concentration, these orbits are stable for 100s of revolutions, and the orbital speed oscillates periodically as a result of hydrodynamic, and possibly also phoretic, interactions between the swimmer and the six neighbouring colloids. Motile E. coli bacteria behave very differently in the same colloidal crystal: their circular orbits on plain glass are rectified into long, straight runs, because the bacteria are unable to turn corners inside the crystal.

U2 - 10.1039/c5sm01831e

DO - 10.1039/c5sm01831e

M3 - Article

AN - SCOPUS:84951188164

SN - 1744-683X

VL - 12

SP - 131

EP - 140

JO - Soft Matter

JF - Soft Matter

IS - 1

ER -

Swimming in a crystal

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