Running and tumbling with E. coli in polymeric solutions

@inproceedings{Patteson2015RunningAT,
  title={Running and tumbling with E. coli in polymeric solutions},
  author={Alison E. Patteson and Arvind Gopinath and Mark Goulian and Paulo E. Arratia},
  booktitle={Scientific reports},
  year={2015}
}
Run-and-tumble motility is widely used by swimming microorganisms including numerous prokaryotic and eukaryotic organisms. Here, we experimentally investigate the run-and-tumble dynamics of the bacterium E. coli in polymeric solutions. We find that even small amounts of polymer in solution can drastically change E. coli dynamics: cells tumble less and their velocity increases, leading to an enhancement in cell translational diffusion and a sharp decline in rotational diffusion. We show that… CONTINUE READING

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