Self-propulsion of a catalytically active particle near a planar wall: from reflection to sliding and hovering

Abstract

Micron-sized particles moving through solution in response to self-generated chemical gradients serve as model systems for studying active matter. Their far-reaching potential applications will require the particles to sense and respond to their local environment in a robust manner. The self-generated hydrodynamic and chemical fields, which induce particle motion, probe and are modified by that very environment, including confining boundaries. Focusing on a catalytically active Janus particle as a paradigmatic example, we predict that near a hard planar wall such a particle exhibits several scenarios of motion: reflection from the wall, motion at a steady-state orientation and height above the wall, or motionless, steady "hovering." Concerning the steady states, the height and the orientation are determined both by the proportion of catalyst coverage and the interactions of the solutes with the different "faces" of the particle. Accordingly, we propose that a desired behavior can be selected by tuning these parameters via a judicious design of the particle surface chemistry.

References in corpus (7)

• Self-motile colloidal particles: from directed propulsion to random walk
• Hydrodynamic attraction of swimming microorganisms by surfaces
• Propulsion of a molecular machine by asymmetric distribution of reaction--products
• Designing phoretic micro- and nano-swimmers
• Hydrodynamics of self-propulsion near a boundary: predictions and accuracy of far-field approximations
• Electrokinetic Effects in Catalytic Pt-Insulator Janus Swimmers
• Phoretic Motion of Spheroidal Particles Due To Self-Generated Solute Gradients

Cited by in corpus (91)

• Active Particles in Complex and Crowded Environments
• Emergent behavior in active colloids
• Topographical pathways guide chemical microswimmers
• Computational models for active matter
• Detention times of microswimmers close to surfaces: Influence of hydrodynamic interactions and noise
• Self-Diffusiophoretic Colloidal Propulsion Near a Solid Boundary
• Oscillatory surface rheotaxis of swimming E. coli bacteria
• Rheotaxis of spherical active particles near a planar wall
• Cross-stream migration of active particles
• Pairing, waltzing and scattering of chemotactic active colloids
• Guiding catalytically active particles with chemically patterned surfaces
• Hydrodynamic interaction of a self-propelling particle with a wall: Comparison between an active Janus particle and a squirmer model
• Active colloids in the context of chemical kinetics
• The dynamics of a self-phoretic Janus swimmer near a wall
• Metamachines of Pluripotent Colloids
• Lattice-Boltzmann Hydrodynamics of Anisotropic Active Matter
• Gravity-induced dynamics of a squirmer microswimmer in wall proximity
• Slip length dependent propulsion speed of catalytic colloidal swimmers near walls
• Exact phoretic interaction of two chemically-active particles
• Model microswimmers in channels with varying cross section
• Interactions in Active Colloids
• Pair Interaction of Catalytically Active Colloids: From Assembly to Escape
• Swimming trajectories of a three-sphere microswimmer near a wall
• Phoretic and hydrodynamic interactions of weakly-confined autophoretic particles
• Hydrodynamic Mobility Reversal of Squirmers near Flat and Curved Surfaces
• How walls affect the dynamics of self-phoretic microswimmers
• State diagram of a three-sphere microswimmer in a channel
• A regularised singularity approach to phoretic problems
• Near-wall hydrodynamic slip triggers swimming state transition of microorganisms
• Active dipole clusters: from helical motion to fission
• Collisions and rebounds of chemically-active droplets
• Diffusion-based height analysis reveals robust microswimmer-wall separation
• Effective interactions between inclusions in an active bath
• Active colloidal propulsion over a crystalline surface
• Self-diffusiophoresis induced by fluid interfaces
• Interaction between catalytic micro motors
• Run-and-Tumble-Like Motion of Active Colloids in Viscoelastic Media
• Towards an analytical description of active microswimmers in clean and in surfactant-covered drops
• Shape-dependent guidance of active Janus particles by chemically patterned surfaces
• Exact axisymmetric interaction of phoretically active Janus particles
• Self-Propelled Colloidal Particle Near a Planar Wall: A Brownian Dynamics Study
• Self-Propelled Janus Colloids in Shear Flow
• Generalized Stokes laws for active colloids and their applications
• Modeling chemo-hydrodynamic interactions of phoretic particles: a unified framework
• Frequency-dependent higher-order Stokes singularities near a planar elastic boundary: implications for the hydrodynamics of an active microswimmer near an elastic interface
• Self-Propelling Rotator Driven by Soluto-Capillary Marangoni Flows
• Hydrochemical interactions of phoretic particles: a regularized multipole framework
• Interaction of Active Janus Particles with Passive Tracers
• Electrophoresis of active Janus particles
• Resetting mediated navigation of active Brownian searcher in a homogeneous topography
• Microswimmers near corrugated, periodic surfaces
• Swimming droplet in 1D geometries, an active Bretherton problem
• Microorganism Billiards
• Optically enriched and guided dynamics of active skyrmions
• Microrobots from Toposelective Nanoparticle Attachment
• Chemically active colloids near osmotic-responsive walls with surface-chemistry gradients
• Active fluids at circular boundaries: Swim pressure and anomalous droplet ripening
• Collision between chemically-driven self-propelled drops
• Diffusiophoretic design of self-spinning microgears from colloidal microswimmers
• Surfactant-loaded capsules as Marangoni microswimmers at the air-water interface: Symmetry breaking and spontaneous propulsion by surfactant diffusion and advection
• Reaction processes among self-propelled particles
• Discovering dynamic laws from observations: the case of self-propelled, interacting colloids
• Confinement-induced alternating interactions between inclusions in an active fluid
• Steering a thermally activated micromotor with a nearby isothermal wall
• Relating absorbing and hard wall boundary conditions for a one-dimensional run-and-tumble particle
• Self-propulsion in 2D Confinement: Phoretic and Hydrodynamic Interactions
• Run-and-tumble particle in one-dimensional potentials: mean first-passage time and applications
• Diffusiophoretic propulsion of an isotropic active colloidal particle near a finite-sized disk embedded in a planar fluid-fluid interface
• Tracking Janus microswimmers in 3D with Machine Learning
• Phase coexistence in a monolayer of active particles induced by Marangoni flows
• Orbits, spirals, and trapped states: Dynamics of a phoretic Janus particle in a radial concentration gradient
• Nanoconfined catalytic Ångström-size motors
• Collective dynamics and rheology of confined phoretic suspensions
• Electrokinetic Janus micromotors moving on topographically flat chemical patterns
• Phoretic flow induced by asymmetric confinement
• Spontaneous chiralization of polar active colloids
• Influence of PEG on the Clustering of Active Janus Colloids
• Active dipolar spheroids in shear flow and transverse field: Population splitting, cross-stream migration and orientational pinning
• Fluctuating hydrodynamics of an autophoretic particle near a permeable interface
• Particle-Wall Alignment Interaction and Active Brownian Diffusion Through Narrow Channels
• Siegmund duality for physicists: a bridge between spatial and first-passage properties of continuous and discrete time stochastic processes
• Langevin equations and a geometric integration scheme for the overdamped limit of rotational Brownian motion of axisymmetric particles
• Floor- or ceiling-sliding for chemically active, gyrotactic, sedimenting Janus particles
• Coupled Interfacial Phenomena Suppress Propulsion in Catalytic Janus Colloids
• Clustering-induced self-propulsion of isotropic autophoretic particles
• Effective squirmer models for self-phoretic chemically active spherical colloids
• Thermotaxis of Janus Particles
• The autophoretic torus
• Autophoresis of a Janus particle near a planar wall: a lubrication limit
• Expanding Active Matter to the Third Dimension: Exploring Short and Long-Range Particle-Wall Interactions
• A lattice Boltzmann model for self-diffusiophoretic particles near and at liquid-liquid interfaces