Taxis of Artificial Swimmers in a Spatio-Temporally Modulated Activation Medium
Taxis of Artificial Swimmers in a Spatio-Temporally Modulated Activation Medium
复制标题
人工游泳者在时空调制激活介质中的趋向
DOI:
10.3390/e19030097
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发表时间:
2017
期刊:
影响因子:
2.7
通讯作者:
F. Marchesoni
中科院分区:
文献类型:
--
作者:
A. Geiseler;P. Hänggi;F. Marchesoni
Contrary to microbial taxis, where a tactic response to external stimuli is controlled by complex chemical pathways acting like sensor-actuator loops, taxis of artificial microswimmers is a purely stochastic effect associated with a non-uniform activation of the particles’ self-propulsion. We study the tactic response of such swimmers in a spatio-temporally modulated activating medium by means of both numerical and analytical techniques. In the opposite limits of very fast and very slow rotational particle dynamics, we obtain analytic approximations that closely reproduce the numerical description. A swimmer drifts on average either parallel or anti-parallel to the propagation direction of the activating pulses, depending on their speed and width. The drift in line with the pulses is solely determined by the finite persistence length of the active Brownian motion performed by the swimmer, whereas the drift in the opposite direction results from the combination of the ballistic and diffusive properties of the swimmer’s dynamics.
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影响因子:
3.4
作者:
W. Uspal;W. Uspal;M. N. Popescu;M. N. Popescu;S. Dietrich;S. Dietrich;M. Tasinkevych;M. Tasinkevych
通讯作者:
W. Uspal;W. Uspal;M. N. Popescu;M. N. Popescu;S. Dietrich;S. Dietrich;M. Tasinkevych;M. Tasinkevych
影响因子:
1.8
作者:
Ebbens, S.;Gregory, D. A.;Golestanian, R.
通讯作者:
Golestanian, R.
影响因子:
16.6
作者:
B. ten Hagen;F. Kümmel;R. Wittkowski;D. Takagi;H. Löwen;C. Bechinger
通讯作者:
B. ten Hagen;F. Kümmel;R. Wittkowski;D. Takagi;H. Löwen;C. Bechinger
DOI:
10.1103/physreve.90.062911
发表时间:
2014
期刊:
Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子:
--
作者:
J. Löber;S. Martens;H. Engel
通讯作者:
H. Engel
影响因子:
--
作者:
Wessels,D;Murray,J;Soll,DR
通讯作者:
Soll,DR