Topology and morphology of self-deforming active shells

Abstract

We present a generic framework for modelling three-dimensional deformable shells of active matter that captures the orientational dynamics of the active particles and hydrodynamic interactions on the shell and with the surrounding environment. We find that the cross-talk between the self-induced flows of active particles and dynamic reshaping of the shell can result in conformations that are tunable by varying the form and magnitude of active stresses. We further demonstrate and explain how self-induced topological defects in the active layer can direct the morphodynamics of the shell. These findings are relevant to understanding morphological changes during organ development and the design of bio-inspired materials that are capable of self-organisation.

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Cited by in corpus (32)

• Topological active matter
• Theory of defect-mediated morphogenesis
• Entropy production fluctuations encode collective behavior in active matter
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• Activity induced nematic order in isotropic liquid crystals
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• Active nematic defects and epithelial morphogenesis
• Active morphogenesis of patterned epithelial shells
• Patterning of morphogenetic anisotropy fields
• Theory of nematic and polar active fluid surfaces
• Dynamics of active nematic defects on the surface of a sphere
• Fingering Instability of Active Nematic Droplets
• Active extensile stress promotes 3D director orientations and flows
• Cholesteric shells: two-dimensional blue fog and finite quasicrystals
• Morphodynamics of Active Nematic Fluid Surfaces
• Binding self-propelled topological defects in active turbulence
• Microdomains and Stress Distributions in Bacterial Monolayers on Curved Interfaces
• Tubulation and dispersion of oil by bacterial growth on droplets
• Tuneable defect-curvature coupling and topological transitions in active shells
• Hydrodynamic Enhancement of $p$-atic Defect Dynamics
• Topological Phases and Curvature-Driven Pattern Formation in Cholesteric Shells
• Self-organization and shape change by active polarization in nematic droplets
• Mechanochemical Topological Defects in an Active Nematic
• Network Model of Active Fluctuations of Thin Elastic Shells Swollen by Hydrostatic Pressure
• Stokes flow of an evolving fluid film with arbitrary shape and topology
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• Active Filaments on Curved Surfaces: From Single Filaments to Dilute Suspensions
• Quadrupolar active stress induces exotic phases of defect motion in active nematics
• Strain rate controls alignment in growing bacterial monolayers
• Motility and self propulsion of active droplets
• Spontaneous flow created by active topological defects
• Defect binding-unbinding transition in active nematic membranes