Article (Scientific journals)
Quantifying the sorting efficiency of self-propelled run-and-tumble swimmers by geometrical ratchets
Berdakin; Silhanek, Alejandro; Moyano Cortéz, H. N. et al.
2013In Central European Journal of Physics
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Keywords :
ratchet; bacteria sorting
Abstract :
[en] Suitable asymmetric microstructures can be used to control the direction of motion in microorganism populations. This rectification process makes it possible to accumulate swimmers in a region of space or to sort different swimmers. Here we study numerically how the separation process depends on the specific motility strategies of the microorganisms involved. Crucial properties such as the separation effi ciency and the separation time for two bacterial strains are precisely defined and evaluated. In particular, the sorting of two bacterial populations inoculated in a box consisting of a series of chambers separated by columns of asymmetric obstacles is investigated. We show how the sorting e fficiency is enhanced by these obstacles and conclude that this kind of sorting can be effi ciently used even when the involved populations differ only in one aspect of their swimming strategy.
Disciplines :
Physical, chemical, mathematical & earth Sciences: Multidisciplinary, general & others
Author, co-author :
Berdakin
Silhanek, Alejandro  ;  Université de Liège - ULiège > Département de physique > Physique de la matière condensée
Moyano Cortéz, H. N.;  Universidad Nacional de C ordoba
Marconi, Veronica;  Universidad Nacional de C ordoba
Condat, Carlos;  Universidad Nacional de C ordoba
Language :
English
Title :
Quantifying the sorting efficiency of self-propelled run-and-tumble swimmers by geometrical ratchets
Publication date :
2013
Journal title :
Central European Journal of Physics
ISSN :
1895-1082
eISSN :
1644-3608
Publisher :
De Gruyter Open, Poland
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 16 September 2013

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