Do cyanobacteria swim using traveling surface waves?

  title={Do cyanobacteria swim using traveling surface waves?},
  author={Kurt M. Ehlers and Aravinthan D. T. Samuel and Howard C. Berg and Ryan Montgomery},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  volume={93 16},
Bacteria that swim without the benefit of flagella might do so by generating longitudinal or transverse surface waves. For example, swimming speeds of order 25 microns/s are expected for a spherical cell propagating longitudinal waves of 0.2 micron length, 0.02 micron amplitude, and 160 microns/s speed. This problem was solved earlier by mathematicians who were interested in the locomotion of ciliates and who considered the undulations of the envelope swept out by ciliary tips. A new solution… CONTINUE READING
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