Trapping and Wiggling: Elastohydrodynamics of Driven Microfilaments

• Published in: Biophysical journal Vol. 74; no. 2; pp. 1043 - 1060
• Main Authors: Wiggins, Chris H., Riveline, D., Ott, A., Goldstein, Raymond E.
• Format: Journal Article
• Language: English
• Published: United States Elsevier Inc 01.02.1998
• Subjects: Actin Cytoskeleton - physiology; Actin Cytoskeleton - ultrastructure; Actins - chemistry; Actins - physiology; Biophysics - methods; Elasticity; Kinetics; Mathematics; Microtubules - physiology; Microtubules - ultrastructure; Models, Biological; Oscillometry; Viscosity

We present an analysis of the planar motion of single semiflexible filaments subject to viscous drag or point forcing. These are the relevant forces in dynamic experiments designed to measure biopolymer bending moduli. By analogy with the “Stokes problems” in hydrodynamics (motion of a viscous fluid...