ArticleSoft matter2016
Microscopic origins of anisotropic active stress in motor-driven nematic liquid crystals.
Article in Soft matter, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.
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Who cites it
22 citing papers in PubMed.
- Direct detection of deformation modes on varying length scales in active biopolymer networks.bioRxiv : the preprint server for biology · 2025Article
- Structure and dynamics of motor-driven microtubule bundles.Soft matter · 2024Article
- Microscopic interactions control a structural transition in active mixtures of microtubules and molecular motors.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Distinct regions of the kinesin-5 C-terminal tail are essential for mitotic spindle midzone localization and sliding force.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- The kinesin-5 protein Cut7 moves bidirectionally on fission yeast spindles with activity that increases in anaphase.Journal of cell science · 2023Article
- Effects of microtubule length and crowding on active microtubule network organization.iScience · 2023Article
- Modeling spatiotemporally varying protein-protein interactions in CyLaKS, the Cytoskeleton Lattice-based Kinetic Simulator.The European physical journal. E, Soft matter · 2021Article
- Treadmilling and dynamic protrusions in fire ant rafts.Journal of the Royal Society, Interface · 2021Article
- Comparison of explicit and mean-field models of cytoskeletal filaments with crosslinking motors.The European physical journal. E, Soft matter · 2021Article
- Detailed Balance Broken by Catch Bond Kinetics Enables Mechanical-Adaptation in Active Materials.Advanced functional materials · 2021Article
- Filamentous active matter: Band formation, bending, buckling, and defects.Science advances · 2020Article
- Mechanisms of chromosome biorientation and bipolar spindle assembly analyzed by computational modeling.eLife · 2020Article
- Effects of spatial dimensionality and steric interactions on microtubule-motor self-organization.Physical biology · 2019Article
- Article
- Nonequilibrium phase diagrams for actomyosin networks.Soft matter · 2018Article
- Filament rigidity and connectivity tune the deformation modes of active biopolymer networks.Proceedings of the National Academy of Sciences of the United States of America · 2017Article
- Enhanced Dynamics of Confined Cytoskeletal Filaments Driven by Asymmetric Motors.Biophysical journal · 2017Article
- Kinesin-5-independent mitotic spindle assembly requires the antiparallel microtubule crosslinker Ase1 in fission yeast.Nature communications · 2017Article
- Contributions of Microtubule Dynamic Instability and Rotational Diffusion to Kinetochore Capture.Biophysical journal · 2017Article
- Physical determinants of bipolar mitotic spindle assembly and stability in fission yeast.Science advances · 2017Article
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Authors and funding
6 authors.
Funding
Abstract
The cytoskeleton, despite comprising relatively few building blocks, drives an impressive variety of cellular phenomena ranging from cell division to motility. These building blocks include filaments, motor proteins, and static crosslinkers. Outside of cells, these same components can form novel materials exhibiting active flows and nonequilibrium contraction or extension. While dipolar extensile or contractile active stresses are common in nematic motor-filament systems, their microscopic origin remains unclear. Here we study a minimal physical model of filaments, crosslinking motors, and static crosslinkers to dissect the microscopic mechanisms of stress generation in a two-dimensional system of orientationally aligned rods. We demonstrate the essential role of filament steric interactions which have not previously been considered to significantly contribute to active stresses. With this insight, we are able to tune contractile or extensile behavior through the control of motor-driven filament sliding and crosslinking. This work provides a roadmap for engineering stresses in active liquid crystals. The mechanisms we study may help explain why flowing nematic motor-filament mixtures are extensile while gelled systems are contractile.
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