ArticleThe European physical journal. E, Soft matter2015
Self-phoretic active particles interacting by diffusiophoresis: A numerical study of the collapsed state and dynamic clustering.
Article in The European physical journal. E, Soft matter, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 42 citations in OpenAlex.
- The interplay between chemo-phoretic interactions and crowding in active colloids.Soft matter · 2023Article
- Self-phoretic Brownian dynamics simulations.The European physical journal. E, Soft matter · 2022Article
- Thermotaxis of Janus particles.The European physical journal. E, Soft matter · 2021Article
- Collective behavior of thermophoretic dimeric active colloids in three-dimensional bulk.The European physical journal. E, Soft matter · 2021Article
- Active Matter, Microreversibility, and Thermodynamics.Research (Washington, D.C.) · 2020Article
- Chemically Propelled Motors Navigate Chemical Patterns.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2018Article
- Aggregation-fragmentation and individual dynamics of active clusters.Nature communications · 2018Article
- Inferring the Chemotactic Strategy of P. putida and E. coli Using Modified Kramers-Moyal Coefficients.PLoS computational biology · 2017Article
- Mode instabilities and dynamic patterns in a colony of self-propelled surfactant particles covering a thin liquid layer.The European physical journal. E, Soft matter · 2016Article
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Self-phoretic active colloids move and orient along self-generated chemical gradients by diffusiophoresis, a mechanism reminiscent of bacterial chemotaxis. In combination with the activity of the colloids, this creates effective repulsive and attractive interactions between particles depending on the sign of the translational and rotational diffusiophoretic parameters. A delicate balance of these interactions causes dynamic clustering and for overall strong effective attraction the particles collapse to one single cluster. Using Langevin dynamics simulations, we extend the state diagram of our earlier work (Phys. Rev. Lett. 112, 238303 (2014)) to regions with translational phoretic repulsion. With increasing repulsive strength, the collapsed cluster first starts to fluctuate strongly, then oscillates between a compact form and a colloidal cloud, and ultimately the colloidal cloud becomes static. The oscillations disappear if the phoretic interactions within compact clusters are not screened. We also study dynamic clustering at larger area fractions by exploiting cluster size distributions and mean cluster sizes. In particular, we identify the dynamic clustering 2 state as a signature of phoretic interactions. We analyze fusion and fission rate functions to quantify the kinetics of cluster formation and identify them as local signatures of phoretic interactions, since they can be measured on single clusters.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.