Light-induced self-assembly of active rectification devices

Abstract

Self-propelled colloidal objects, such as motile bacteria or synthetic microswimmers, have microscopically irreversible individual dynamics - a feature they share with all living systems. The incoherent behaviour of individual swimmers can then be harnessed (or "rectified") by microfluidic devices that create systematic motions impossible in equilibrium. Examples include flow of rotor particles round a circuit, steady rotation of a gear wheel in a bacterial bath, and pumping of bacteria between chambers by "funnel gates". Here we present a computational proof-of-concept study, showing that such active rectification devices might be created directly from an unstructured "primordial soup" of motile particles, solely by using spatially modulated illumination to control their local propulsion speed. Alongside both microscopic irreversibility and speed modulation, our mechanism requires spatial symmetry breaking, such as a chevron light pattern, and strong interactions between particles, such as volume exclusion causing a collisional slow-down at high density. These four factors create a many-body rectification mechanism that generically differs from one-body microfluidic antecedents. Our work suggests that standard spatial-light-modulator technology might allow the programmable, light-induced self-assembly of active rectification devices from an unstructured particle bath.

References in corpus (14)

• Novel type of phase transition in a system of self-driven particles
• Self-motile colloidal particles: from directed propulsion to random walk
• Motility-Induced Phase Separation
• Statistical Mechanics of Interacting Run-and-Tumble Bacteria
• When are active Brownian particles and run-and-tumble particles equivalent? Consequences for motility-induced phase separation
• Pressure is not a state function for generic active fluids
• Diffusive transport without detailed balance in motile bacteria: Does microbiology need statistical physics?
• Sedimentation, trapping, and rectification of dilute bacteria
• Pattern formation in self-propelled particles with density-dependent motility
• Self-Starting Micromotors in a Bacterial Bath
• Rectification of Swimming Bacteria and Self Driven Particle Systems by Arrays of Asymmetric Barriers
• Light Activated Self-Propelled Colloids
• Directed transport of active particles over asymmetric energy barriers
• Entropy and Kinetics of Point-Defects in Two-Dimensional Dipolar Crystals

Cited by in corpus (72)

• Topological active matter
• Phototaxis of synthetic microswimmers in optical landscapes
• Transition from turbulent to coherent flows in confined three-dimensional active fluids
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• Generalized Thermodynamics of Phase Equilibria in Scalar Active Matter
• Entropy production in field theories without time reversal symmetry: Quantifying the non-equilibrium character of active matter
• Dynamic density shaping of light driven bacteria
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• Theories of Binary Fluid Mixtures: From Phase-Separation Kinetics to Active Emulsions
• An active approach to colloidal self-assembly
• Time-(ir)reversibility in active matter: from micro to macro
• Autonomous engines driven by active matter: Energetics and design principles
• Nonequilibrium dynamics of mixtures of active and passive colloidal particles
• The Anomalous Transport of Tracers in Active Baths
• Active engines: Thermodynamics moves forward
• Hydrodynamics of Active Defects: from order to chaos to defect ordering
• The Parental Active Model: a unifying stochastic description of self-propulsion
• Dissipation controls transport and phase transitions in active fluids: Mobility, diffusion and biased ensembles
• Collective forces in scalar active matter
• Dynamics-dependent density distribution in active suspensions
• Hydrodynamically interrupted droplet growth in scalar active matter
• Learning to Control Active Matter
• Active Brownian particles driven by constant affinity
• Brownian systems with spatially inhomogeneous activity
• Dynamics of active particles with space-dependent swim velocity
• Quorum-sensing active particles with discontinuous motility
• Collective dynamics of active Brownian particles in three spatial dimensions: a predictive field theory
• Lorentz forces induce inhomogeneity and fluxes in active systems
• Activity-controlled clogging and unclogging of micro-channels
• Hot Particles Attract in a Cold Bath
• Emergent dynamics due to chemo-hydrodynamic self-interactions in active polymers
• Pseudochemotaxis in inhomogeneous active Brownian systems
• Controlling cell motion and microscale flow with polarized light fields
• Shape-dependent guidance of active Janus particles by chemically patterned surfaces
• Anomalous fluxes in overdamped Brownian dynamics with Lorentz force
• Fractal aggregation of active particles
• Designing, Synthesizing and Modeling Active Fluids
• Effective Langevin equations for a polar tracer in an active bath
• Nondiffusive Fluxes in Brownian System with Lorentz Force
• Relations between angular and Cartesian orientational expansions
• Lack of an equation of state for the nonequilibrium chemical potential of gases of active particles in contact
• Fluctuations of entropy production of a run-and-tumble particle
• Spontaneous membrane formation and self-encapsulation of active rods in an inhomogeneous motility field
• Diffusiophoretic design of self-spinning microgears from colloidal microswimmers
• Vorticity Determines the Force on Bodies Immersed in Active Fluids
• A large deviation theory perspective on nanoscale transport phenomena
• Optimization of Non-Equilibrium Self-Assembly Protocols Using Markov State Models
• Orientational order parameters for arbitrary quantum systems
• Active Colloidal Molecules in Activity Gradients
• Topological sound in active-liquid metamaterials
• Effective Entropy Production and Thermodynamic Uncertainty Relation of Active Brownian Particles
• Currents and flux-inversion in photokinetic active particles
• Interacting particles in an activity landscape
• Long-range Self-assembly via the Mutual Lorentz Force of Plasmon Radiation
• Colloidal Brazil nut effect in microswimmer mixtures induced by motility contrast
• Motile bacteria in a critical fluid mixture
• Crystallization and flow in active patch systems
• Effective interactions mediated between two permeable disks in an active fluid
• Collective guiding of acoustically propelled nano- and microparticles for medical applications
• Boundary shape engineering for the spatial control of confined active particles
• Designing active colloidal folders
• Ratchet Effects in Active Matter Systems
• Macrotransport of active particles in periodic channels and fields: rectification and dispersion
• Geometric view of stochastic thermodynamics for non-equilibrium steady states
• Phenomenological model of motility by spatiotemporal modulation of active interactions
• Interplay between Brownian and hydrodynamic tracer diffusion in suspensions of swimming microorganisms
• Reinforcement Learning reveals fundamental limits on the mixing of active particles
• Active osmotic-like pressure on permeable inclusions
• Active chiral molecules in activity gradients
• Oscillatory active microrheology of active suspensions
• Run-and-tumble particle with saturating rates