Topological and geometrical quantities in active cellular structures
| Autor: | Simon Praetorius, Axel Voigt, Dennis Wenzel |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Passive systems
Collective behavior Field (physics) Scale (ratio) Cells FOS: Physical sciences General Physics and Astronomy Condensed Matter - Soft Condensed Matter 010402 general chemistry Topology 01 natural sciences Models Biological Topological defect 35K25 Cell Behavior (q-bio.CB) 0103 physical sciences Physical and Theoretical Chemistry Physics 010304 chemical physics Tissue level 0104 chemical sciences FOS: Biological sciences Discrete Modeling Soft Condensed Matter (cond-mat.soft) Polar Quantitative Biology - Cell Behavior |
| Popis: | Topological and geometrical properties and the associated topological defects find a rapidly growing interest in studying the interplay between mechanics and the collective behavior of cells on the tissue level. We here test if well studied equilibrium laws for polydisperse passive systems such as the Lewis's and the Aboav-Weaire's law are applicable also for active cellular structures. Large scale simulations, which are based on a multi phase field active polar gel model, indicate that these active cellular structures follow these laws. If the system is in a state of collective motion also quantitative agreement with typical values for passive systems is observed. If this state has not developed quantitative differences can be found. We further compare the model with discrete modeling approaches for cellular structures and show that essential properties, such as T1 transitions and rosettes are naturally fulfilled. 6 pages, 6 figures |
| Databáze: | OpenAIRE |
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