% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@ARTICLE{MartnGmez:862784,
author = {Martín-Gómez, Aitor and Eisenstecken, Thomas and Gompper,
Gerhard and Winkler, Roland G.},
title = {{A}ctive {B}rownian filaments with hydrodynamic
interactions: conformations and dynamics},
journal = {Soft matter},
volume = {15},
number = {19},
issn = {1744-6848},
address = {London},
publisher = {Royal Soc. of Chemistry},
reportid = {FZJ-2019-03009},
pages = {3957 - 3969},
year = {2019},
abstract = {The conformational and dynamical properties of active
self-propelled filaments/polymers are investigated in the
presence of hydrodynamic interactions by both, Brownian
dynamics simulations and analytical theory. Numerically, a
discrete linear chain composed of active Brownian particles
is considered, analytically, a continuous linear
semiflexible polymer with active velocities changing
diffusively. The force-free nature of active monomers is
accounted for—no Stokeslet fluid flow induced by active
forces—and higher order hydrodynamic multipole moments are
neglected. Hence, fluid-mediated interactions are assumed to
arise solely due to intramolecular forces. The hydrodynamic
interactions (HI) are taken into account analytically by the
preaveraged Oseen tensor, and numerically by the
Rotne–Prager–Yamakawa tensor. The nonequilibrium
character of the active process implies a dependence of the
stationary-state properties on HI via the polymer relaxation
times. In particular, at moderate activities, HI lead to a
substantial shrinkage of flexible and semiflexible polymers
to an extent far beyond shrinkage of comparable
free-draining polymers; even flexible HI-polymers shrink,
while active free-draining polymers swell monotonically.
Large activities imply a reswelling, however, to a less
extent than for non-HI polymers, caused by the shorter
polymer relaxation times due to hydrodynamic interactions.
The polymer mean square displacement is enhanced, and an
activity-determined ballistic regime appears. Over a wide
range of time scales, flexible active polymers exhibit a
hydrodynamically governed subdiffusive regime, with an
exponent significantly smaller than that of the Rouse and
Zimm models of passive polymers. Compared to simulations,
the analytical approach predicts a weaker hydrodynamic
effect. Overall, hydrodynamic interactions modify the
conformational and dynamical properties of active polymers
substantially.},
cin = {IAS-2 / ICS-2},
ddc = {530},
cid = {I:(DE-Juel1)IAS-2-20090406 / I:(DE-Juel1)ICS-2-20110106},
pnm = {551 - Functional Macromolecules and Complexes (POF3-551)},
pid = {G:(DE-HGF)POF3-551},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:31012481},
UT = {WOS:000473065200010},
doi = {10.1039/C9SM00391F},
url = {https://juser.fz-juelich.de/record/862784},
}