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Accueil du site > Seminars > Séminaires théorie > Theory Club Wednesday April 3 at 12:00pm in room 646A. Serge Dmitrieff: "Simple elasticity problems inspired by biology".

Theory Club Wednesday April 3 at 12:00pm in room 646A. Serge Dmitrieff: "Simple elasticity problems inspired by biology"

Unless otherwise stated, seminars and defences take place at 11:30 in room 454A of Condorcet building.


Simple elasticity problems inspired by biology

Serge Dmitrieff

Abstract: Biological cells are physical elements under internal and external mechanical constraints. For instance, cell need to oppose exterior stress to maintain their shapes, and overcome large internal drag forces to transport cargo. I will discuss about the role of semi-flexible polymers called microtubules in these processes. We will see that we can use simple physical notions from elasticity to address these problems : the maintenance the shape of blood cells can be understood as the buckling of a visco-elastic bundle in confinement, while some examples of intracellular transport to the cell center appears akin to Newton’s first theorem, albeit with elastic forces. Even minimal formulations of these problems are deceivingly simple, and yield interesting new physics, such as the metastability of disc-like cells, and unexpected scaling laws for centering forces.

Wednesday April 3 at 12:00pm in room 646A


Contact : Équipe séminaires / Seminar team - Published on / Publié le 19 March


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