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Three-dimensional transverse vibration of microtubules / Si Li, Chengyuan Wang, Perumal Nithiarasu

Journal of Applied Physics, Volume: 121, Issue: 23, Start page: 234301

Swansea University Authors: Chengyuan Wang, Perumal Nithiarasu

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DOI (Published version): 10.1063/1.4986630

Abstract

A three-dimensional (3D) transverse vibration was reported based on the molecular structural mechanics model for microtubules (MTs), where the bending axis of the cross section rotates in an anticlockwise direction and the adjacent half-waves oscillate in different planes. Herein, efforts were inves...

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Published in: Journal of Applied Physics
ISSN: 0021-8979 1089-7550
Published: 2017
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URI: https://cronfa.swan.ac.uk/Record/cronfa34136
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Abstract: A three-dimensional (3D) transverse vibration was reported based on the molecular structural mechanics model for microtubules (MTs), where the bending axis of the cross section rotates in an anticlockwise direction and the adjacent half-waves oscillate in different planes. Herein, efforts were invested to capturing the physics behind the observed phenomenon and identifying the important factors that influence the rotation angle between two adjacent half waves. A close correlation was confirmed between the rotation of the oscillation planes and the helical structures of the MTs, showing that the 3D mode is a result of the helicity found in the MTs. Subsequently, the wave length-dependence and the boundary condition effects were also investigated for the 3D transverse vibration of the MTs. In addition, the vibration frequency was found to remain the same in the presence or absence of the bending axis rotation. This infers that the unique vibration mode is merely due to the bending axis rotation of the cross section, but no significant torsion occurs for the MTs.
Keywords: Melt texturing, Boundary value problems, Elasticity, Chemical bonds, Atomic and molecular beams
College: College of Engineering
Issue: 23
Start Page: 234301