Circular motion of asymmetric self-propelling particles

Phys Rev Lett. 2013 May 10;110(19):198302. doi: 10.1103/PhysRevLett.110.198302. Epub 2013 May 9.


Micron-sized self-propelled (active) particles can be considered as model systems for characterizing more complex biological organisms like swimming bacteria or motile cells. We produce asymmetric microswimmers by soft lithography and study their circular motion on a substrate and near channel boundaries. Our experimental observations are in full agreement with a theory of Brownian dynamics for asymmetric self-propelled particles, which couples their translational and orientational motion.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Bacterial Physiological Phenomena*
  • Cell Movement*
  • Models, Biological*
  • Swimming*