'Fuelled' motion: phoretic motility and collective behaviour of active colloids

Abstract

Designing microscopic and nanoscopic self-propelled particles and characterising their motion has become a major scientific challenge over the past decades. To this purpose, phoretic effects, namely propulsion mechanisms relying on local field gradients, have been the focus of many theoretical and experimental studies. In this review, we adopt a tutorial approach to present the basic physical mechanisms at stake in phoretic motion, and describe the different experimental works that lead to the fabrication of active particles based on this principle. We also present the collective effects observed in assemblies of interacting active colloids, and the theoretical tools that have been used to describe phoretic and hydrodynamic interactions.

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Cited by in corpus (41)

• Entropy production of active particles and for particles in active baths
• Chemotactic self-caging in active emulsions
• We the Droplets: A Constitutional Approach to Active and Self-Propelled Emulsions
• A review of active matter reviews
• Chemotactic smoothing of collective migration
• Phoretic and hydrodynamic interactions of weakly-confined autophoretic particles
• Cellular Sensing Governs the Stability of Chemotactic Fronts
• Escape of a passive particle from activity-induced energy landscape: Emergence of slow and fast effective diffusion
• Translational and rotational dynamics of a self-propelled Janus probe in crowded environments
• Approach to equilibrium and non-equilibrium stationary distributions of interacting many-particle systems that are coupled to different heat baths
• Controlling cell motion and microscale flow with polarized light fields
• Designing, Synthesizing and Modeling Active Fluids
• Modeling chemo-hydrodynamic interactions of phoretic particles: a unified framework
• Alignment and scattering of colliding active droplets
• Dynamics of a helical swimmer crossing viscosity gradients
• Optimal navigation of microswimmers in complex and noisy environments
• Inertial effects on rectification and diffusion of active Brownian particles in an asymmetric channel
• Long-time diffusion and energy transfer in polydisperse mixtures of particles with different temperatures
• Large scale Micro-Photometry for high resolution pH-characterization during electro-osmotic pumping and modular micro-swimming
• Surfactant-loaded capsules as Marangoni microswimmers at the air-water interface: Symmetry breaking and spontaneous propulsion by surfactant diffusion and advection
• Dynamics of a microswimmer-microplatelet composite
• Dynamic Clustering of Active Rings
• From diffusive mass transfer in Stokes flow to low Reynolds number Marangoni boats
• Enhanced diffusivity in microscopically reversible active matter
• Diffusiophoretic propulsion of an isotropic active colloidal particle near a finite-sized disk embedded in a planar fluid-fluid interface
• Spontaneous propulsion of an isotropic colloid in a phase-separating environment
• Dynamical crossovers and correlations in a harmonic chain of active particles
• Snapping elastic disks as microswimmers: swimming at low Reynolds numbers by shape hysteresis
• Clustering of chemically propelled nanomotors in chemically active environments
• Control of active polymeric filaments by chemically-powered nanomotors
• Spontaneous chiralization of polar active colloids
• Self-generated electrokinetic flows from active-charged boundary patterns
• Microscopic theory of a Janus motor in a non-equilibrium fluid: Surface hydrodynamics and boundary conditions
• Fluctuating hydrodynamics of an autophoretic particle near a permeable interface
• Conditions for the propulsion of a colloid surrounded by a mesoscale phase separation
• Tunable dynamics of flexible magnetic microcrosses: synchronous rotation, breathing and out-of-plane arm overtaking
• Instability and self-propulsion of flexible autophoretic filaments
• Mass-based separation of active Brownian particles in an asymmetric channel
• Patterns that persist: Heritable information in stochastic dynamics
• Current reversals in driven lattice gases and Brownian motion
• Suppressing parasitic flow in membraneless diffusion-based microfluidic gradient generators