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References & Citations

Quantitative Biology > Cell Behavior

Title:Flagellar swimmers oscillate between pusher- and puller-type swimming

Abstract: Self-propulsion of cellular microswimmers generates flow signatures, commonly classified as pusher- and puller-type, which characterize hydrodynamic interactions with other cells or boundaries. Using experimentally measured beat patterns, we compute that flagellated alga and sperm oscillate between pusher and puller. Beyond a typical distance of 100 um from the swimmer, inertia attenuates oscillatory micro-flows. We show that hydrodynamic interactions between swimmers oscillate in time and are of similar magnitude as stochastic swimming fluctuations.
Comments: 12 pages, 4 color figures
Subjects: Cell Behavior (q-bio.CB); Soft Condensed Matter (cond-mat.soft); Biological Physics (physics.bio-ph)
DOI: 10.1103/PhysRevE.92.063019
Cite as: arXiv:1504.05775 [q-bio.CB]
  (or arXiv:1504.05775v1 [q-bio.CB] for this version)

Submission history

From: Benjamin M. Friedrich [view email]
[v1] Wed, 22 Apr 2015 13:00:59 UTC (4,029 KB)