Article (Scientific journals)
Influence of swimming strategy on microorganism separation by asymmetric obstacles
Berdakin, I; Jeyaram, Y.; Moshchalkov, V.V. et al.
2013In Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics, 87, p. 052702
Peer Reviewed verified by ORBi
 

Files


Full Text
Berdakin-PRE-2013.pdf
Publisher postprint (1.37 MB)
Copyright 2013 by the American Physical Society
Download

Copyright 2013 by the American Physical Society


All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
rectification; ratchet; microswimmers
Abstract :
[en] It has been shown that a nanoliter chamber separated by a wall of asymmetric obstacles can lead to an inhomogeneous distribution of self-propelled microorganisms. Although it is well established that this rectification effect arises from the interaction between the swimmers and the noncentrosymmetric pillars, here we demonstrate numerically that its efficiency is strongly dependent on the detailed dynamics of the individual microorganism. In particular, for the case of run-and-tumble dynamics, the distribution of run lengths, the rotational diffusion, and the partial preservation of run orientation memory through a tumble are important factors when computing the rectification efficiency. In addition, we optimize the geometrical dimensions of the asymmetric pillars in order to maximize the swimmer concentration and we illustrate how it can be used for sorting by swimming strategy in a long array of parallel obstacles.
Disciplines :
Physical, chemical, mathematical & earth Sciences: Multidisciplinary, general & others
Author, co-author :
Berdakin, I;  Universidad Nacional de Cordoba, Argentina
Jeyaram, Y.;  Katholieke Universiteit Leuven - KUL
Moshchalkov, V.V.;  Katholieke Universiteit Leuven - KUL
Venken, L.;  Katholieke Universiteit Leuven - KUL
Dierckx, S.;  Katholieke Universiteit Leuven - KUL
Vanderleyden, J.;  Katholieke Universiteit Leuven - KUL
Silhanek, Alejandro  ;  Université de Liège - ULiège > Département de physique > Physique de la matière condensée
Condat, C.A.;  Universidad de Cordoba, Argentina
Marconi, V.;  Universidad de Cordoba, Argentina
Language :
English
Title :
Influence of swimming strategy on microorganism separation by asymmetric obstacles
Publication date :
02 May 2013
Journal title :
Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics
ISSN :
1539-3755
eISSN :
1550-2376
Publisher :
American Physical Society, College Park, United States - Maryland
Volume :
87
Pages :
052702
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 15 May 2013

Statistics


Number of views
85 (0 by ULiège)
Number of downloads
196 (0 by ULiège)

Scopus citations®
 
64
Scopus citations®
without self-citations
58
OpenCitations
 
56

Bibliography


Similar publications



Contact ORBi