Fluctuating chemohydrodynamics and the stochastic motion of self-diffusiophoretic particles

Abstract

The propulsion of active particles by self-diffusiophoresis is driven by asymmetric catalytic reactions on the particle surface that generate a mechanochemical coupling between the fluid velocity and the concentration fields of fuel and product in the surrounding solution. Because of thermal and molecular fluctuations in the solution, the motion of micrometric or submicrometric active particles is stochastic. Coupled Langevin equations describing the translation, rotation, and reaction of such active particles are deduced from fluctuating chemohydrodynamics and fluctuating boundary conditions at the interface between the fluid and the particle. These equations are consistent with microreversibility and the Onsager-Casimir reciprocal relations between affinities and currents, and provide a thermodynamically consistent basis for the investigation of the dynamics of active particles propelled by diffusiophoretic mechanisms.

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Cited by in corpus (30)

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• Thermodynamics of active field theories: Energetic cost of coupling to reservoirs
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• Thermodynamics and statistical mechanics of chemically-powered synthetic nanomotors
• Thermodynamics of active matter: Tracking dissipation across scales
• Designing, Synthesizing and Modeling Active Fluids
• Active matter, microreversibility, and thermodynamics
• Single particle motion and collective dynamics in Janus motor systems
• Entropy production and thermodynamic inference for stochastic microswimmers
• Inertial effects on rectification and diffusion of active Brownian particles in an asymmetric channel
• Dynamics of Janus motors with microscopically reversible kinetics
• Thermodynamic Approach to the Self-Diffusiophoresis of Colloidal Janus Particles
• The stochastic motion of self-thermophoretic Janus particles
• Enhanced diffusivity in microscopically reversible active matter
• Molecular theory of Langevin dynamics for active self-diffusiophoretic colloids
• Effects of the self-propulsion parity on the efficiency of a fuel-consuming active heat engine
• Microreversibility and driven Brownian motion with hydrodynamic long-time correlations
• Control of active polymeric filaments by chemically-powered nanomotors
• Diffusion coefficient and power spectrum of active particles with a microscopically reversible mechanism of self-propelling
• Microscopic theory of a Janus motor in a non-equilibrium fluid: Surface hydrodynamics and boundary conditions
• Finite-time fluctuation theorem for diffusion-influenced surface reactions on spherical and Janus catalytic particles
• Particle motion driven by non-uniform thermodynamic forces
• Lattice Boltzmann Simulations of Non-Equilibrium Fluctuations in a Non-Ideal Binary Mixture
• Phase separation of chemokinetic active particles
• Mass-based separation of active Brownian particles in an asymmetric channel
• The non-equilibrium thermodynamics of active suspensions
• Onsager reciprocal relations and chemo-mechanical coupling for chemically-active colloids
• The stress tensor of dilute active colloidal suspensions