Steering Chiral Swimmers along Noisy Helical Paths
Steering Chiral Swimmers along Noisy Helical Paths
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DOI：
10.1103/physrevlett.103.068102
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发表时间：
2009-08-07
影响因子：
8.6
通讯作者：
Juelicher, Frank
中科院分区：
文献类型：
--
作者：
Friedrich, Benjamin M.;Juelicher, Frank
在精子细胞和许多微生物中发现了沿着沿着螺旋路径朝向靶释放化学引诱物的趋化性。讨论了手征游动分子噪声螺旋游动路径的随机微分几何。一个简单的反馈系统，配备了一个手性游泳可以在浓度梯度的化学引诱剂导航。我们推导出一个有效的方程的螺旋路径的排列与浓度梯度，这是有关的偶极子在外场中的排列，并讨论了趋化指数。
Chemotaxis along helical paths towards a target releasing a chemoattractant is found in sperm cells and many microorganisms. We discuss the stochastic differential geometry of the noisy helical swimming path of a chiral swimmer. A chiral swimmer equipped with a simple feedback system can navigate in a concentration gradient of chemoattractant. We derive an effective equation for the alignment of helical paths with a concentration gradient which is related to the alignment of a dipole in an external field and discuss the chemotaxis index.