Swimming motion of rod-shaped magnetotactic bacteria: the effects of shape and growing magnetic moment.
Swimming motion of rod-shaped magnetotactic bacteria: the effects of shape and growing magnetic moment.
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DOI：
10.3389/fmicb.2014.00008
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发表时间：
2014
影响因子：
5.2
通讯作者：
Zhang K
中科院分区：
文献类型：
--
作者：
Kong D;Lin W;Pan Y;Zhang K
我们调查的杆状趋磁细菌隶属于Nitrospiphylum在粘性液体中的外部施加的，随时间变化的磁场的影响下的游泳运动。通过假设流体运动的平移和旋转的游泳细菌驱动的斯托克斯型和运动的惯性效应是可以忽略不计的，我们推导出一个新的系统的12个耦合方程，管理的运动和方向的游泳杆形趋磁细菌在实验室的参考系中的磁矩不断增长。结果表明，初始模式的游泳运动可以强烈影响的增长的磁矩的速度。通过比较12个耦合方程的数学解与实验室中杆状趋磁细菌的游动运动，发现在我们的理论模型中，适当的参数可以近似地再现实验室中的游动运动轨迹。
We investigate the swimming motion of rod-shaped magnetotactic bacteria affiliated with the Nitrospirae phylum in a viscous liquid under the influence of an externally imposed, time-dependent magnetic field. By assuming that fluid motion driven by the translation and rotation of a swimming bacterium is of the Stokes type and that inertial effects of the motion are negligible, we derive a new system of the twelve coupled equations that govern both the motion and orientation of a swimming rod-shaped magnetotactic bacterium with a growing magnetic moment in the laboratory frame of reference. It is revealed that the initial pattern of swimming motion can be strongly affected by the rate of the growing magnetic moment. It is also revealed, through comparing mathematical solutions of the twelve coupled equations to the swimming motion observed in our laboratory experiments with rod-shaped magnetotactic bacteria, that the laboratory trajectories of the swimming motion can be approximately reproduced using an appropriate set of the parameters in our theoretical model.
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影响因子：
64.8
作者：
BLAKEMORE, RP;FRANKEL, RB;KALMIJN, AJ
通讯作者：
KALMIJN, AJ
影响因子：
64.8
作者：
BERG, HC;ANDERSON, RA
通讯作者：
ANDERSON, RA
影响因子：
0.9
作者：
PURCELL, EM
通讯作者：
PURCELL, EM
DOI：
10.1098/rspa.1922.0078
发表时间：
1922-11-01
期刊：
PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-CONTAINING PAPERS OF A MATHEMATICAL AND PHYSICAL CHARACTER
影响因子：
--
作者：
Jeffery, GB
通讯作者：
Jeffery, GB
影响因子：
3.4
作者：
Ishikawa, T.;Sekiya, G.;Yamaguchi, T.
通讯作者：
Yamaguchi, T.