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Showing 1–8 of 8 results
Advanced filters: Author: Fernando Peruani Clear advanced filters

  • Chemotaxis may generally be thought to determine bacterial virulence and identification of appropriate host cells. Here, Otte, Ipiña et al. show that if this process is studied in vitro, purely mechanistic random search strategies must be included to explain the experimental results.

    • Stefan Otte
    • Emiliano Perez Ipiña
    • Fernando Peruani
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-9

  • Interacting self-propelled particles exhibit phase separation or collective motion depending on particle shape. A unified theory connecting these paradigms represents a major challenge in active matter, which the authors address here by modeling active particles as continuum fields.

    • Robert Großmann
    • Igor S. Aranson
    • Fernando Peruani
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-12

  • Bacteria swimming near surfaces can get trapped in circular trajectories that lead nowhere, hindering efficient surface exploration. A harmful strain of bacteria is now shown to circumvent the problem by exploiting transient surface adhesion events.

    • Emiliano Perez Ipiña
    • Stefan Otte
    • Fernando Peruani
    Research
    Nature Physics
    Volume: 15, P: 610-615

  • Confined populations of interacting motile particles often display collective motion in the form of large-scale vortices, such as fish groups and bacteria colonies. Bricard et al.study a model system with self-propelled colloidal rollers and identify the constituents responsible for emergent vortices.

    • Antoine Bricard
    • Jean-Baptiste Caussin
    • Denis Bartolo
    ResearchOpen Access
    Nature Communications
    Volume: 6, P: 1-8

  • While the presence of spatial heterogeneities is known to affect emergent collective behavior in traditional active systems with metric interactions, its role in active systems with nonmetric interactions is still unclear. Here, the authors study the effect of quenched disorder in active matter with topological interactions, finding that topological interactions preserve long-range order in the presence of spatial heterogeneity, which also enhances the emergence of traveling bands.

    • Parisa Rahmani
    • Fernando Peruani
    • Pawel Romanczuk
    ResearchOpen Access
    Communications Physics
    Volume: 4, P: 1-9