Motion of two micro-wedges in a turbulent bacterial bath

A. Kaiser, A. Sokolov, Igor Aronson, H. Löwen

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The motion of a pair of micro-wedges (“carriers”) in a turbulent bacterial bath is explored using computer simulations with explicit modeling of the bacteria and experiments. The orientation of the two micro-wedges is fixed by an external magnetic field but the translational coordinates can move freely as induced by the bacterial bath. As a result, two carriers of same orientation move such that their mutual distance decreases, while they drift apart for an anti-parallel orientation. Eventually the two carriers stack on each other with no intervening bacteria exhibiting a stable dynamical mode where the two micro-wedges follow each other with the same velocity. These findings are in qualitative agreement with experiment on two micro-wedges in a bacterial bath. Our results provide insight into understanding self-assembly of many micro-wedges in an active bath.

Original languageEnglish (US)
Pages (from-to)1275-1286
Number of pages12
JournalEuropean Physical Journal: Special Topics
Volume224
Issue number7
DOIs
StatePublished - Jul 25 2015

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wedges
baths
Bacteria
Self assembly
Experiments
bacteria
Magnetic fields
Computer simulation
self assembly
computerized simulation
magnetic fields

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

Cite this

Kaiser, A. ; Sokolov, A. ; Aronson, Igor ; Löwen, H. / Motion of two micro-wedges in a turbulent bacterial bath. In: European Physical Journal: Special Topics. 2015 ; Vol. 224, No. 7. pp. 1275-1286.
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Motion of two micro-wedges in a turbulent bacterial bath. / Kaiser, A.; Sokolov, A.; Aronson, Igor; Löwen, H.

In: European Physical Journal: Special Topics, Vol. 224, No. 7, 25.07.2015, p. 1275-1286.

Research output: Contribution to journalArticle

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