Pattern formation and polarity sorting of driven actin filaments on lipid membranes.

ABSTRACT: Collective motion of active matter is ubiquitously observed, ranging from propelled colloids to flocks of bird, and often features the formation of complex structures composed of agents moving coherently. However, it remains extremely challenging to predict emergent patterns from the binary interaction between agents, especially as only a limited number of interaction regimes have been experimentally observed so far. Here, we introduce an actin gliding assay coupled to a supported lipid bilayer, whose fluidity forces the interaction between self-propelled filaments to be dominated by steric repulsion. This results in filaments stopping upon binary collisions and eventually aligning nematically. Such a binary interaction rule results at high densities in the emergence of dynamic collectivel

SUBMITTER: Sciortino A 

PROVIDER: S-EPMC8017684 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature