ArticleNature communications2019
Dynamics-dependent density distribution in active suspensions.
Article in Nature communications, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
9 citing papers in PubMed.
- Article
- Active interface bulging inProceedings of the National Academy of Sciences of the United States of America · 2024Article
- Sizing multimodal suspensions with differential dynamic microscopy.Soft matter · 2023Article
- Spatial Patterning of Micromotor Aggregation and Flux.ChemNanoMat : chemistry of nanomaterials for energy, biology and more · 2023Article
- Colloidal transport by light induced gradients of active pressure.Nature communications · 2023Article
- Rectification and confinement of photokinetic bacteria in an optical feedback loop.Nature communications · 2022Article
- Photo-bioconvection: towards light control of flows in active suspensions.Philosophical transactions. Series A, Mathematical, physical, and engineering sciences · 2020Review
- A combined rheometry and imaging study of viscosity reduction in bacterial suspensions.Proceedings of the National Academy of Sciences of the United States of America · 2020Article
- Dynamics-dependent density distribution in active suspensions.Nature communications · 2019Article
Corrections and comments
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Authors and funding
5 authors.
Funding
Abstract
Self-propelled colloids constitute an important class of intrinsically non-equilibrium matter. Typically, such a particle moves ballistically at short times, but eventually changes its orientation, and displays random-walk behaviour in the long-time limit. Theory predicts that if the velocity of non-interacting swimmers varies spatially in 1D, v(x), then their density ρ(x) satisfies ρ(x) = ρ(0)v(0)/v(x), where x = 0 is an arbitrary reference point. Such a dependence of steady-state ρ(x) on the particle dynamics, which was the qualitative basis of recent work demonstrating how to 'paint' with bacteria, is forbidden in thermal equilibrium. Here we verify this prediction quantitatively by constructing bacteria that swim with an intensity-dependent speed when illuminated and implementing spatially-resolved differential dynamic microscopy (sDDM) for quantitative analysis over millimeter length scales. Applying a spatial light pattern therefore creates a speed profile, along which we find that, indeed, ρ(x)v(x) = constant, provided that steady state is reached.
Identifiers
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Registered trials
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.