ArticleScience advances2021
Inferring non-equilibrium interactions from tracer response near confined active Janus particles.
Article in Science advances, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Article
- Collective Dynamics of Urease-Based Nanomotors in a Chemical Gradient.Small (Weinheim an der Bergstrasse, Germany) · 2025Article
- Technology Roadmap of Micro/Nanorobots.ACS nano · 2025Review
- Collective buoyancy-driven dynamics in swarming enzymatic nanomotors.Nature communications · 2024Article
- Clustering induces switching between phoretic and osmotic propulsion in active colloidal rafts.Nature communications · 2024Article
- Anomalous dynamics of a passive droplet in active turbulence.Nature communications · 2024Article
- Transition from scattering to orbiting upon increasing the fuel concentration for an active Janus colloid moving at an obstacle-decorated interface.Soft matter · 2023Article
- Dynamics of Active SiOACS physical chemistry Au · 2023Article
- Unraveling the physiochemical nature of colloidal motion waves among silver colloids.Science advances · 2022Article
- Activity-induced interactions and cooperation of artificial microswimmers in one-dimensional environments.Nature communications · 2022Article
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Chemically active Janus particles sustain non-equilibrium spatial variations in the chemical composition of the suspending solution; these induce hydrodynamic flow and (self-)motility of the particles. Direct mapping of these fields has so far proven to be too challenging. Therefore, indirect methods are needed, e.g., deconvolving the response of "tracer" particles to the activity-induced fields. Here, we study experimentally the response of silica particles, sedimented at a wall, to active Pt/silica Janus particles. The latter are either immobilized at the wall, with the symmetry axis perpendicular or parallel to the wall, or motile. The experiments reveal complex effective interactions that are dependent on the configuration and on the state of motion of the active particle. Within the framework of a coarse-grained model, the behavior of tracers near an immobilized Janus particle can be captured qualitatively once activity-induced osmotic flows on the wall are considered.
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Registered trials
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