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Monopolar flocking of microtubules in collective motion

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Title: Monopolar flocking of microtubules in collective motion
Authors: Afroze, Farhana Browse this author
Inoue, Daisuke Browse this author
Farhana, Tamanna Ishrat Browse this author
Hiraiwa, Tetsuya Browse this author
Akiyama, Ryo Browse this author
Kabir, Arif Md Rashedul Browse this author
Sada, Kazuki Browse this author
Kakugo, Akira Browse this author →KAKEN DB
Keywords: Flocking
Collective motion
Pattern formation
Active matter
Issue Date: 23-Jul-2021
Publisher: Elsevier
Journal Title: Biochemical and biophysical research communications
Volume: 563
Start Page: 73
End Page: 78
Publisher DOI: 10.1016/j.bbrc.2021.05.037
Abstract: Flocking is a fascinating coordinated behavior of living organisms or self-propelled particles (SPPs). Particularly, monopolar flocking has been attractive due to its potential applications in various fields. However, the underlying mechanism behind flocking and emergence of monopolar motion in flocking of SPPs has remained obscured. Here, we demonstrate monopolar flocking of kinesin-driven microtubules, a self-propelled biomolecular motor system. Microtubules with an intrinsic structural chirality preferentially move towards counter-clockwise direction. At high density, the CCW motion of microtubules facilitates monopolar flocking and formation of a spiral pattern. The monopolar flocking of microtubules is accounted for by a torque generated when the motion of microtubules was obstructed due to collisions. Our results shed light on flocking and emergence of monopolar motion in flocking of chiral active matters. This work will help regulate the polarity in collective motion of SPPs which in turn will widen their applications in nanotechnology, materials science and engineering.
Rights: © 2021. This manuscript version is made available under the CC-BY-NC-ND 4.0 license
Type: article (author version)
Appears in Collections:理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 角五 彰

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