Active Particles in Complex and Crowded Environments

  title={Active Particles in Complex and Crowded Environments},
  author={Clemens Bechinger and R. Di Leonardo and Hartmut Lowen and C. J. O. Reichhardt and Giorgio Volpe and Giovanni Volpe},
  journal={Reviews of Modern Physics},
Differently from passive Brownian particles, active particles, also known as self-propelled Brownian particles or microswimmers and nanoswimmers, are capable of taking up energy from their environment and converting it into directed motion. Because of this constant flow of energy, their behavior can be explained and understood only within the framework of nonequilibrium physics. In the biological realm, many cells perform directed motion, for example, as a way to browse for nutrients or to… 
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