Shape and Displacement Fluctuations in Soft Vesicles Filled by Active Particles

We investigate numerically the dynamics of shape and displacement fluctuations of two-dimensional flexible vesicles filled with active particles. At low concentration most of the active particles accumulate at the boundary of the vesicle where positive particle number fluctuations are amplified by trapping, leading to the formation of pinched spots of high density, curvature and pressure. At high concentration the active particles cover the vesicle boundary almost uniformly, resulting in fairly homogeneous pressure and curvature and nearly circular vesicle shape. The change between polarized and spherical shapes is driven by the number of active particles. The center-of-mass of the vesicle performs a persistent random walk with a long time diffusivity that is strongly enhanced for elongated active particles due to orientational correlations in their direction of propulsive motion. In our model shape-shifting induces directional sensing and the cell spontaneously migrate along the polarization direction.

• Publication year

  2016

• Venue

  Scientific Reports

• Publication date

  2016-05-06

• Fields of study

  Materials Science, Physics, Medicine

• Identifiers
  DOI 10.1038/srep34146arXiv 1605.02086PMID 27678166PMCID 5039690
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

• Water-in-water (W/W) emulsions

  2016cited by this paper
• Ratchet Effects in Active Matter Systems

  2016cited by this paper
• Shape control and compartmentalization in active colloidal cells

  2015cited by this paper
• Publisher's Note: Swim pressure on walls with curves and corners [Phys. Rev. E 92, 032304 (2015)].

  2015cited by this paper
• Boundary deformation induced by the inhomogeneous redistribution of enclosed active particles

  2015cited by this paper
• Motility-driven glass and jamming transitions in biological tissues.

  2015cited by this paper
• Swim pressure on walls with curves and corners.

  2015cited by this paper
• Facilitation of polymer looping and giant polymer diffusivity in crowded solutions of active particles

  2015cited by this paper
• Minimal model of active colloids highlights the role of mechanical interactions in controlling the emergent behavior of active matter

  2015cited by this paper
• Multidimensional stationary probability distribution for interacting active particles

  2015cited by this paper
• An Equation of State for Active Matter

  2015cited by this paper
• Self-Sustained Density Oscillations of Swimming Bacteria Confined in Microchambers.

  2014cited by this paper
• Aggregation and segregation of confined active particles.

  2014cited by this paper
• Pressure and phase equilibria in interacting active brownian spheres.

  2014cited by this paper
• Dynamics and density distribution of strongly confined noninteracting nonaligning self-propelled particles in a nonconvex boundary.

  2014cited by this paper
• Pressure is not a state function for generic active fluids

  2014cited by this paper
• Dynamics of self-propelled particles under strong confinement.

  2014cited by this paper
• Curvature-induced activation of a passive tracer in an active bath.

  2014cited by this paper
• Patterns of Collective Bacterial Motion in Microfluidic Devices

  2014cited by this paper
• Zooming in to see the bigger picture: Microfluidic and nanofabrication tools to study bacteria

  2014cited by this paper
• Unusual swelling of a polymer in a bacterial bath.

  2014cited by this paper
• Activity-induced collapse and reexpansion of rigid polymers.

  2014cited by this paper
• Run-and-tumble particles in speckle fields

  2014cited by this paper
• Swim pressure: stress generation in active matter.

  2014cited by this paper
• Hydrodynamics of soft active matter

  2013cited by this paper
• Effective run-and-tumble dynamics of bacteria baths

  2013cited by this paper
• Living liquid crystals

  2013cited by this paper
• Confinement stabilizes a bacterial suspension into a spiral vortex.

  2013cited by this paper
• Reentrant phase behavior in active colloids with attraction.

  2013cited by this paper
• Propulsion and navigation within the advancing monolayer sheet

  2013cited by this paper
• Averaged run-and-tumble walks

  2013cited by this paper
• Targeted delivery of colloids by swimming bacteria

  2013cited by this paper
• Non-equilibrium glass transitions in driven and active matter

  2013cited by this paper
• Nonequilibrium glassy dynamics of self-propelled hard disks.

  2013cited by this paper
• Spontaneous motion in hierarchically assembled active matter

  2012cited by this paper
• Diffusive transport without detailed balance in motile bacteria: does microbiology need statistical physics?

  2012cited by this paper
• Collective motion and nonequilibrium cluster formation in colonies of gliding bacteria.

  2012cited by this paper
• Active ratchets

  2011cited by this paper
• Active jamming: self-propelled soft particles at high density.

  2011cited by this paper
• Numerical modeling of bacteria propelled micromotors

  2011cited by this paper
• Sedimentation and effective temperature of active colloidal suspensions.

  2010cited by this paper
• Geometrically biased random walks in bacteria-driven micro-shuttles

  2010cited by this paper
• Eukaryotic chemotaxis: a network of signaling pathways controls motility, directional sensing, and polarity.

  2010cited by this paper
• Swimming bacteria power microscopic gears

  2009cited by this paper
• Bacterial ratchet motors

  2009cited by this paper
• Self-Organized Shape and Frontal Density of Fish Schools

  2008cited by this paper
• Aggregation of self-propelled colloidal rods near confining walls.

  2008cited by this paper
• Self-starting micromotors in a bacterial bath.

  2008cited by this paper
• Statistical mechanics of interacting run-and-tumble bacteria.

  2008influential reference
• Interaction ruling animal collective behavior depends on topological rather than metric distance: Evidence from a field study

  2007cited by this paper
• A Wall of Funnels Concentrates Swimming Bacteria

  2007cited by this paper
• Rectification of swimming bacteria and self-driven particle systems by arrays of asymmetric barriers.

  2007cited by this paper
• Long-Lived Giant Number Fluctuations in a Swarming Granular Nematic

  2006cited by this paper
• Eukaryotic Chemotaxis: Distinctions between Directional Sensing and Polarization*

  2003cited by this paper
• Collective Motion

  1999cited by this paper
• Universal features of polymer shapes

  1986cited by this paper
• PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES.

  year unknowncited by this paper
• PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES.

  year unknowncited by this paper

• Non-Markovian dynamics of a torsion pendulum immersed in an active bath

  2025cites this paper
• Emergent Microrobotic Behavior of Active Flexicles in Complex Environments

  2025cites this paper
• Dynamic shape remodeling of vesicles by internal active filaments

  2025cites this paper
• Boundary accumulation of active rods in microchannels with elliptical cross-section.

  2025cites this paper
• Geometry and dynamics of spring networks of spherical topology.

  2025cites this paper
• Intrinsic pressure as a convenient mechanical framework for dry active matter

  2025cites this paper
• Run-and-tumble dynamics of active giant vesicles.

  2025cites this paper
• Spontaneous cell morphogenesis via self-propelled actin filaments

  2025cites this paper
• Effects of boundaries for high Reynolds number artificial swimmers

  2025cites this paper
• Renormalized mechanics and stochastic thermodynamics of growing vesicles

  2025cites this paper
• Hydroelastic scattering and trapping of microswimmers

  2025cites this paper
• Active particle in a very thin interfacial droplet

  2025cites this paper
• Stationary shapes of axisymmetric vesicles beyond lowest-energy configurations.

  2024cites this paper
• Active billiards: Engineering boundaries for the spatial control of confined active particles

  2024cites this paper
• Deformation-induced phase separation of active vesicles.

  2024cites this paper
• Active particles confined in deformable droplets

  2024cites this paper
• Migration and deformation of a droplet enclosing an active particle

  2024cites this paper
• Asymmetric fluctuations and self-folding of active interfaces

  2024cites this paper
• Mesoscopic modeling of membranes at cellular scale

  2024cites this paper
• The Reversible Transformation of a Vesicular Aggregate in Response to a pH Oscillation

  2024cites this paper
• A shape-driven reentrant jamming transition in confluent monolayers of synthetic cell-mimics

  2024cites this paper
• Modulation of self-organizing circuits at deforming membranes by intracellular and extracellular factors

  2023cites this paper
• Stationary shapes of axisymmetric vesicles beyond lowest-energy configurations

  2023cites this paper
• Phase separation dependent active motion of Janus lipid vesicles

  2023cites this paper
• Complex motion of steerable vesicular robots filled with active colloidal rods

  2023cites this paper
• Janus magnetoelastic membrane swimmers.

  2023cites this paper
• Dynamics of semiflexible ring polymer in chiral Brownian particles bath

  2023cites this paper
• Exploiting compositional disorder in collectives of light-driven circle walkers

  2023cites this paper
• Design principles for transporting vesicles with enclosed active particles

  2023cites this paper
• Statistics of carrier-cargo complexes.

  2023cites this paper
• Orientational ordering of active nematics confined to a 2D nanoscopic ring-shaped cavity.

  2023cites this paper
• Dynamic shapes of floppy vesicles enclosing active Brownian particles with membrane adhesion.

  2023cites this paper
• Vibration induced by active nematics

  2023cites this paper
• Active osmoticlike pressure on permeable inclusions.

  2022cites this paper
• Migration of an active colloidal cell in inhomogeneous environments.

  2022cites this paper
• Encapsulated bacteria deform lipid vesicles into flagellated swimmers

  2022cites this paper
• Spontaneous self-propulsion and nonequilibrium shape fluctuations of a droplet enclosing active particles

  2022cites this paper
• The crucial role of adhesion in the transmigration of active droplets through interstitial orifices

  2022cites this paper
• Micromotor-mediated label-free cargo manipulation

  2022cites this paper
• Response of vesicle shapes to dense inner active matter.

  2022cites this paper
• Non-equilibrium shapes and dynamics of active vesicles.

  2022cites this paper
• Geometrical control of interface patterning underlies active matter invasion

  2022cites this paper
• Optimal Cargo Size for Active Diffusion of Biohybrid Microcarriers

  2022cites this paper
• Activity Induced Rigidity of Liquid Droplets.

  2022cites this paper
• Effective temperature and dissipation of a gas of active particles probed by the vibrations of a flexible membrane

  2022cites this paper
• Compartmentalizing and sculpting nanovesicles by phase-separated aqueous nanodroplets

  2022cites this paper
• Rectification of confined soft vesicles containing active particles.

  2022cites this paper
• Most probable path of active Ornstein-Uhlenbeck particles.

  2022cites this paper
• Vesicle shape transformations driven by confined active filaments

  2021cites this paper
• Spontaneous self-propulsion and nonequilibrium shape fluctuations of a droplet enclosing active particles

  2021cites this paper
• Biohybrid active matter -- the emergent properties of cell-mediated microtransport

  2021cites this paper
• Absorption of self-propelled particles into a dense porous medium.

  2021cites this paper
• From collections of independent, mindless robots to flexible, mobile, and directional superstructures

  2021cites this paper
• Noncentral forces mediated between inclusions in a bath of active Brownian rods

  2021cites this paper
• A single active ring model with velocity self-alignment.

  2021cites this paper
• Noncentral forces mediated between two inclusions in a bath of active Brownian rods

  2021cites this paper
• Learning to control active matter

  2021cites this paper
• Dependency of active pressure and equation of state on stiffness of wall

  2021cites this paper
• Constraint Dependence of Active Depletion Forces on Passive Particles.

  2020cites this paper
• Boids in a loop: Self-propelled particles within a flexible boundary.

  2020cites this paper
• Dynamic nuclear structure emerges from chromatin crosslinks and motors

  2020cites this paper
• Leveraging synthetic particles for communication: from passive to active systems.

  2020cites this paper
• Active particles with polar alignment in ring-shaped confinement.

  2020cites this paper
• Dynamic overlap concentration scale of active colloids.

  2020cites this paper
• An attraction–repulsion transition of force on two asymmetric wedges induced by active particles

  2020cites this paper
• Active noise experienced by a passive particle trapped in an active bath.

  2020cites this paper
• Effective interactions mediated between two permeable disks in an active fluid

  2020cites this paper
• Shape Transformations of Vesicles Induced by Swim Pressure.

  2019cites this paper
• Active particles induce large shape deformations in giant lipid vesicles

  2019cites this paper
• Microscopic origins of the swim pressure and the anomalous surface tension of active matter.

  2019cites this paper
• Active Contact Forces Drive Nonequilibrium Fluctuations in Membrane Vesicles.

  2019cites this paper
• Assembly structures and dynamics of active colloidal cells.

  2019cites this paper
• Shape transformation and manipulation of a vesicle by active particles.

  2019cites this paper
• Unidirectional rotation of circles driven by chiral active particles

  2018cites this paper
• Structure and behaviour of vesicles in the presence of colloidal particles.

  2018cites this paper
• Beating of grafted chains induced by active Brownian particles.

  2018cites this paper
• Collective behavior of self-propelled rods with quorum sensing.

  2018cites this paper
• Shape evolution of ooids: a geometric model

  2018cites this paper
• Vesicles with internal active filaments: self-organized propulsion controls shape, motility, and dynamical response

  2018cites this paper
• Spontaneous assembly of colloidal vesicles driven by active swimmers

  2018cites this paper
• Active fluids at circular boundaries: swim pressure and anomalous droplet ripening.

  2018cites this paper
• Complex self-propelled rings: a minimal model for cell motility.

  2017cites this paper
• Rotational Diffusion of Soft Vesicles Filled by Chiral Active Particles

  2017cites this paper
• Elasticity-based polymer sorting in active fluids: a Brownian dynamics study.

  2017cites this paper
• Memory-less response and violation of the fluctuation-dissipation theorem in colloids suspended in an active bath

  2017cites this paper
• Confined run-and-tumble swimmers in one dimension

  2017cites this paper
• Anomalous boundary deformation induced by enclosed active particles

  2017cites this paper
• Spontaneous symmetry breaking induced unidirectional rotation of a chain-grafted colloidal particle in the active bath.

  2017cites this paper
• Fluctuation spectra and force generation in nonequilibrium systems

  2015cites this paper