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arXiv · 2211.02159

Random traction yielding transition in epithelial tissues

Aboutaleb Amiri·Charlie Duclut·Frank Jülicher·Marko Popović
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Abstract

We investigate how randomly oriented cell traction forces lead to fluidisation in a vertex model of epithelial tissues. We find that the fluidisation occurs at a critical value of the traction force magnitude $F_c$. We show that this transition exhibits critical behaviour, similar to the yielding transition of sheared amorphous solids. However, we find that it belongs to a different universality class, even though it satisfies the same scaling relations between critical exponents established in the yielding transition of sheared amorphous solids. Our work provides a fluidisation mechanism through active force generation that could be relevant in biological tissues.

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Aboutaleb Amiri, Charlie Duclut, Frank Jülicher, Marko Popović. 2022-11-03. Random traction yielding transition in epithelial tissues. https://arxiv.org/abs/2211.02159

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