ArticleProceedings of the National Academy of Sciences of the United States of America2020
A combined rheometry and imaging study of viscosity reduction in bacterial suspensions.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2020. 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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9 citing papers in PubMed.
- Vortex reversal is a precursor of confined bacterial turbulence.Proceedings of the National Academy of Sciences of the United States of America · 2025Article
- Scaling Transition of Active Turbulence from Two to Three Dimensions.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024Article
- The Effect of Two Siderophore-ProducingMicroorganisms · 2024Article
- Article
- Chiral active particles are sensitive reporters to environmental geometry.Nature communications · 2024Article
- Forced Wetting Properties of Bacteria-Laden Droplets Experiencing Initial Evaporation.Langmuir : the ACS journal of surfaces and colloids · 2023Article
- Self-organized canals enable long-range directed material transport in bacterial communities.eLife · 2022Article
- Imaging the emergence of bacterial turbulence: Phase diagram and transition kinetics.Science advances · 2021Article
- 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
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11 authors.
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Abstract
Suspending self-propelled "pushers" in a liquid lowers its viscosity. We study how this phenomenon depends on system size in bacterial suspensions using bulk rheometry and particle-tracking rheoimaging. Above the critical bacterial volume fraction needed to decrease the viscosity to zero, [Formula: see text], large-scale collective motion emerges in the quiescent state, and the flow becomes nonlinear. We confirm a theoretical prediction that such instability should be suppressed by confinement. Our results also show that a recent application of active liquid-crystal theory to such systems is untenable.
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