Goldstein R E, Goriely A, Huber G, Wolgemuth C W
Department of Physics, University of Arizona, Tucson, Arizona 85721, USA.
Phys Rev Lett. 2000 Feb 14;84(7):1631-4. doi: 10.1103/PhysRevLett.84.1631.
We extend elasticity theory of filaments to encompass systems, such as bacterial flagella, that display competition between two helical structures of opposite chirality. A general, fully intrinsic formulation of the dynamics of bend and twist degrees of freedom is developed using the natural frame of space curves, spanning from the inviscid limit to the viscously overdamped regime applicable to cellular biology. Aspects of front propagation found in flagella are discussed.
我们将细丝的弹性理论扩展到包含诸如细菌鞭毛等系统，这些系统在两种具有相反手性的螺旋结构之间表现出竞争。利用空间曲线的自然框架，开发了一种通用的、完全内在的弯曲和扭转自由度动力学公式，涵盖了从无粘滞极限到适用于细胞生物学的粘性过阻尼状态。文中讨论了鞭毛中发现的前沿传播方面的问题。
