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Locomotion of Spirilla

Chwang, A. T. and Wu, T. Y. and Winet, H. (1972) Locomotion of Spirilla. Biophysical Journal, 12 (11). pp. 1549-1561. ISSN 0006-3495. doi:10.1016/s0006-3495(72)86181-2.

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The hydromechanics of spirilla locomotion is analyzed by considering the balance of both rectilinear and angular momenta of the surrounding viscous fluid which is otherwise at rest. The physical model of Spirillum adopted for the present analysis consists of a rigid helical body with flagella attached to both ends of the helix. The motion is supposed to be activated first by the polar flagella, both rotating in the same sense, thus causing the helical body to rotate in the opposite sense in angular recoil, which in turn pushes the body forward in response to the balance of linear momentum of the surrounding fluid. The sweeping back of the polar flagella during forward motion is ascribed to a certain bending flexibility of the flagella and of their conjunction with the body. Based on this model some quantitative results for Spirillum movement are predicted, and are found to be consistent with existing experimental data.

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Additional Information:© 1972 The Biophysical Society. Published by Elsevier Under an Elsevier user license. Received for publication 10 April 1972 and in revised form 5 July 1972. This work was partially sponsored by the National Science Foundation under grant GK 31161X, and by the Office of Naval Research under contract N00014-67-A-0094-0012.
Funding AgencyGrant Number
NSFGK 31161X
Office of Naval Research (ONR)N00014-67-A-0094-0012
Issue or Number:11
Record Number:CaltechAUTHORS:20200306-150642254
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Official Citation:A.T. Chwang, T.Y. Wu, H. Winet, Locomotion of Spirilla, Biophysical Journal, Volume 12, Issue 11, 1972, Pages 1549-1561, ISSN 0006-3495,
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:101756
Deposited By: George Porter
Deposited On:06 Mar 2020 23:43
Last Modified:16 Nov 2021 18:05

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