Using self-driven microswimmers for particle separation

Abstract

Microscopic self-propelled swimmers capable of autonomous navigation through complex environments provide appealing opportunities for localization, pick-up and delivery of micro-and nanoscopic objects. Inspired by motile cells and bacteria, man-made microswimmers have been fabricated, and their motion in patterned surroundings has been experimentally studied. We propose to use self-driven artificial microswimmers for separation of binary mixtures of colloids. We revealed different regimes of separation including one with a velocity inversion. Our finding could be of use for various biological and medical applications.

arXiv comment6 pages, 5 figures

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Cited by in corpus (16)

• Active Particles in Complex and Crowded Environments
• Active Brownian Motion Tunable by Light
• Self-propelled Janus particles in a ratchet: Numerical simulations
• Hydrodynamic capture of microswimmers into sphere-bound orbits
• Sorting of Chiral Microswimmers
• Non-Gaussian statistics for the motion of self-propelled Janus particles: experiment versus theory
• Anomalous Thermomechanical Properties of a Self-propelled Colloidal Fluid
• Can the self-propulsion of anisotropic microswimmers be described by using forces and torques?
• Mixing and demixing of binary mixtures of polar chiral active particles
• Chirality separation of mixed chiral microswimmers in a periodic channel
• Active Matter Ratchets with an External Drift
• Exact symmetries in the velocity fluctuations of a hot Brownian swimmer
• Ratchet transport powered by chiral active particles
• Sorting of chiral active particles driven by rotary obstacles
• Short-time dynamics of monomers and dimers in quasi-two-dimensional colloidal mixtures
• Diffusion of chiral active particles in a Poiseuille flow