ArticleProceedings of the National Academy of Sciences of the United States of America2017
Contractile and chiral activities codetermine the helicity of swimming droplet trajectories.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed.
- Bacterial turbulence drives interfacial waves and shape dynamics in phase-separated droplets.Nature communications · 2026Article
- Activity drives self-assembly of passive soft inclusions in active nematics.Nature communications · 2026Article
- Epithelial cell chirality emerges through the dynamic concentric pattern of actomyosin cytoskeleton.eLife · 2025Article
- Topology controls flow patterns in active double emulsions.Nature communications · 2025Article
- Filopodia rotate and coil by actively generating twist in their actin shaft.Nature communications · 2022Article
- Edge current and pairing order transition in chiral bacterial vortices.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- Activity pulses induce spontaneous flow reversals in viscoelastic environments.Journal of the Royal Society, Interface · 2021Article
- Rotation and propulsion in 3D active chiral droplets.Proceedings of the National Academy of Sciences of the United States of America · 2019Article
- Lattice Boltzmann methods and active fluids.The European physical journal. E, Soft matter · 2019Review
- Spontaneous rotation can stabilise ordered chiral active fluids.Nature communications · 2019Article
- Reentrant Phase Transitions and Non-Equilibrium Dynamics in Membraneless Organelles.Biochemistry · 2018Article
- Lattice Boltzmann study of chemically-driven self-propelled droplets.The European physical journal. E, Soft matter · 2017Article
Corrections and comments
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Authors and funding
3 authors.
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No grant is acknowledged in the PubMed record.
Abstract
Active fluids are a class of nonequilibrium systems where energy is injected into the system continuously by the constituent particles themselves. Many examples, such as bacterial suspensions and actomyosin networks, are intrinsically chiral at a local scale, so that their activity involves torque dipoles alongside the force dipoles usually considered. Although many aspects of active fluids have been studied, the effects of chirality on them are much less known. Here, we study by computer simulation the dynamics of an unstructured droplet of chiral active fluid in three dimensions. Our model considers only the simplest possible combination of chiral and achiral active stresses, yet this leads to an unprecedented range of complex motilities, including oscillatory swimming, helical swimming, and run-and-tumble motion. Strikingly, whereas the chirality of helical swimming is the same as the microscopic chirality of torque dipoles in one regime, the two are opposite in another. Some of the features of these motility modes resemble those of some single-celled protozoa, suggesting that underlying mechanisms may be shared by some biological systems and synthetic active droplets.
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