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@ARTICLE{Eisenstecken:825420,
author = {Eisenstecken, Thomas and Hu, Jinglei and Winkler, Roland
G.},
title = {{B}acterial swarmer cells in confinement: a mesoscale
hydrodynamic simulation study},
journal = {Soft matter},
volume = {12},
number = {40},
issn = {1744-6848},
address = {London},
publisher = {Royal Soc. of Chemistry},
reportid = {FZJ-2016-07883},
pages = {8316 - 8326},
year = {2016},
abstract = {A wide spectrum of Peritrichous bacteria undergo
considerable physiological changes when they are inoculated
onto nutrition-rich surfaces and exhibit a rapid and
collective migration denoted as swarming. Thereby, the
length of such swarmer cells and their number of flagella
increases substantially. In this article, we investigated
the properties of individual E. coli-type swarmer cells
confined between two parallel walls via mesoscale
hydrodynamic simulations, combining molecular dynamics
simulations of the swarmer cell with the multiparticle
particle collision dynamics approach for the embedding
fluid. E. coli-type swarmer cells are three-times longer
than their planktonic counter parts, but their flagella
density is comparable. By varying the wall separation, we
analyze the confinement effect on the flagella arrangement,
on the distribution of cells in the gap between the walls,
and on the cell dynamics. We find only a weak dependence of
confinement on the bundle structure and dynamics. The
distribution of cells in the gap changes from a
geometry-dominated behavior for very narrow to
fluid-dominated behavior for wider gaps, where cells are
preferentially located in the gap center for narrower gaps
and stay preferentially next to one of the walls for wider
gaps. Dynamically, the cells exhibit a wide spectrum of
migration behaviors, depending on their flagella bundle
arrangement, and ranges from straight swimming to wall
rolling.},
cin = {IAS-2},
ddc = {530},
cid = {I:(DE-Juel1)IAS-2-20090406},
pnm = {551 - Functional Macromolecules and Complexes (POF3-551)},
pid = {G:(DE-HGF)POF3-551},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000386237000006},
pubmed = {pmid:27714355},
doi = {10.1039/C6SM01532H},
url = {https://juser.fz-juelich.de/record/825420},
}