Partenaires

MSC
Logo CNRS Logo Université Paris Diderot
Logo tutelle Logo tutelle



Search

On this website

On the whole CNRS Web


Home page > Séminaires > Séminaire des doctorants > Mercredi 17 février 2016 : Pierre Ronceray (LPTMS, Univ. Paris-Sud ; Orsay). "Active contraction in biological fiber networks"..

Mercredi 17 février 2016 : Pierre Ronceray (LPTMS, Univ. Paris-Sud ; Orsay). "Active contraction in biological fiber networks".

Sauf mention contraire, les séminaires et les soutenances se déroulent à 11h30 en salle 454A du bâtiment Condorcet.


"Active contraction in biological fiber networks".

Pierre Ronceray (Laboratoire de Physique Théorique et Modèles Statistiques, CNRS & Université Paris-Sud ; Orsay).

Living organisms generate forces to move, change shape and maintain their internal functions. These forces are typically produced at the nanometer scale by molecular motors embedded in networks of fibers. While these motors are traditionally regarded as the defining elements of biological force generation, I will show that the surrounding network also plays a central role in this process. Indeed, rather than merely propagating forces like a simple elastic medium, fiber networks produce emergent, dramatically amplified stresses, and can go so far as reversing small-scale extensile forces into large-scale contraction. Our theory quantitatively accounts for experimental measurements of contraction.

Mercredi 17 février 2016, 18h, 646A.


Contact : Équipe séminaires / Seminar team - Published on / Publié le 8 février 2016


Dans la même rubrique :