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Showing 1–7 of 7 results
Advanced filters: Author: Jordi Ignés-Mullol Clear advanced filters

  • Chirality can be induced both by physical forces and by chemical induction processes. Here, a self-assembled system is reported in which chiral selection is controlled by the combined action of a chiral dopant and vortical stirring, which can act either constructively or destructively.

    • Núria Petit-Garrido
    • Josep Claret
    • Francesc Sagués
    Research
    Nature Communications
    Volume: 3, P: 1-6

  • Experiments on microtubule-based nematics, together with active gel theory, suggest that the length scale associated with active turbulence is selected at its onset—balancing activity with the stabilizing effects of nematic elasticity and geometry.

    • Berta Martínez-Prat
    • Jordi Ignés-Mullol
    • Francesc Sagués
    Research
    Nature Physics
    Volume: 15, P: 362-366

  • The boundary of conventional liquid crystals is known to anchor the orientational field of the passive materials under equilibrium conditions. Here, the authors show an active nematic to develop active boundary layers that topologically polarize the confining walls regardless of the wall curvature.

    • Jerôme Hardoüin
    • Claire Doré
    • Francesc Sagués
    ResearchOpen Access
    Nature Communications
    Volume: 13, P: 1-9

  • Active nematics consist of self-driven components that develop orientational order and turbulent flow. Here Guillamat et al. investigate an active nematic constrained in a quasi-2D geometrical setup and show that there exists an intrinsic length scale that determines the geometry in all forcing regimes.

    • P. Guillamat
    • J. Ignés-Mullol
    • F. Sagués
    ResearchOpen Access
    Nature Communications
    Volume: 8, P: 1-8

  • Active matter systems are made up of self-driven components which extract energy from their surroundings to generate mechanical work. Here the authors review the subfield of active nematics and provide a comparison between theoretical findings and the corresponding experimental realisations.

    • Amin Doostmohammadi
    • Jordi Ignés-Mullol
    • Francesc Sagués
    ReviewsOpen Access
    Nature Communications
    Volume: 9, P: 1-13

  • Active nematics refers to systems made of a collection of elongated units, each of which consumes ambient or stored energy in order to move. The authors experimentally and numerically study an active nematic system in confinement finding a defect-free regime of shear flow, and defect nucleation under certain boundary conditions, highlighting the importance of topological defects in controlling confined active flows.

    • Jérôme Hardoüin
    • Rian Hughes
    • Francesc Sagués
    ResearchOpen Access
    Communications Physics
    Volume: 2, P: 1-9