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- W2020046276 abstract "The locomotion of microorganism plays important roles in many biological processes including reproduction. Many microorganisms propel themselves by propagating traveling waves along their flagella. Depending on the species, propagation of planar waves (e.g. Ceratium and helical waves (e.g. Trichomonas) were observed in eukaryotic flagellar motion, and hydrodynamic models for both were proposed in the past. However, the motility of insect spermatozoa remains largely unexplored. An interesting morphological feature of such cells, first observed in Tenebrio molitor and Bacillus rossius, is the double helical deformation pattern along the flagella, which is characterized by the presence of two superimposed helical flagellar waves (one with a large amplitude and low frequency, and the other with a small amplitude and high frequency). Here we present the first hydrodynamic investigation of the locomotion of insect spermatozoa. Resolving hydrodynamic interactions with a non-local slender body theory, we predict the swimming dynamics of these superhelical swimmers based on experimentally collected geometric and kinematic data. We then compare our theoretical predictions with experimental measurements, and explore the dependence of the swimming performance on the geometric and dynamical parameters. Counter-intuitive results are revealed, particularly for the case when the minor and major helical structures are of opposing chirality." @default.
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- W2020046276 date "2012-01-01" @default.
- W2020046276 modified "2023-09-29" @default.
- W2020046276 title "Hydrodynamics of the Double-Wave Structure of Insect Spermatozoa" @default.
- W2020046276 doi "https://doi.org/10.1016/j.bpj.2011.11.2267" @default.
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