ArticleProceedings of the National Academy of Sciences of the United States of America2021
Submersed micropatterned structures control active nematic flow, topology, and concentration.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed.
- Emergent collective alignment gives competitive advantage to longer cells during range expansion.Nature communications · 2025Article
- Orienting field effects on the flow of an active nematic liquid crystal in a channel.The European physical journal. E, Soft matter · 2025Article
- Strings and topological defects govern ordering kinetics in endothelial cell layers.Nature physics · 2025Article
- Surface Topography Induces and Orients Nematic Swarms of Active Filaments: Considerations for Lab-On-A-Chip Devices.ACS applied nano materials · 2024Article
- Design rules for controlling active topological defects.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Probing active nematics with in situ microfabricated elastic inclusions.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Kinesin and myosin motors compete to drive rich multiphase dynamics in programmable cytoskeletal composites.PNAS nexus · 2023Article
- Complex-tensor theory of simple smectics.Nature communications · 2023Article
- Defect self-propulsion in active nematic films with spatially varying activity.Royal Society open science · 2023Article
- Active boundary layers in confined active nematics.Nature communications · 2022Article
- Mesoscopic simulations of active nematics.Science advances · 2022Article
- Reconstituting and Characterizing Actin-Microtubule Composites with Tunable Motor-Driven Dynamics and Mechanics.Journal of visualized experiments : JoVE · 2022Article
- Logic operations with active topological defects.Science advances · 2022Article
- Nano/Micromotors in Active Matter.Micromachines · 2022Review
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Authors and funding
8 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Coupling between flows and material properties imbues rheological matter with its wide-ranging applicability, hence the excitement for harnessing the rheology of active fluids for which internal structure and continuous energy injection lead to spontaneous flows and complex, out-of-equilibrium dynamics. We propose and demonstrate a convenient, highly tunable method for controlling flow, topology, and composition within active films. Our approach establishes rheological coupling via the indirect presence of fully submersed micropatterned structures within a thin, underlying oil layer. Simulations reveal that micropatterned structures produce effective virtual boundaries within the superjacent active nematic film due to differences in viscous dissipation as a function of depth. This accessible method of applying position-dependent, effective dissipation to the active films presents a nonintrusive pathway for engineering active microfluidic systems.
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