Zobrazeno 1 - 10
of 194
pro vyhledávání: '"Recho P"'
Autor:
Recho, Pierre, Truskinovsky, Lev
Taking inspiration from the crawling motion of biological cells on a substrate, we consider a physical model of self-propulsion where the spatio-temporal driving can involve both, a mechanical actuation by active force couples, and a chemical actuati
Externí odkaz:
http://arxiv.org/abs/2405.09302
Contractile biopolymer networks, such as the actomyosin meshwork of animal cells, are ubiquitous in living organisms. The active gel theory, which provides the thermodynamic framework for these materials, has been mostly used in conjunction with the
Externí odkaz:
http://arxiv.org/abs/2405.07287
Autor:
Étienne, Jocelyn, Recho, Pierre
The conditions under which biological cells switch from a static to a motile state are fundamental to the understanding of many healthy and pathological processes. In this paper, we show that even in the presence of a fully symmetric protrusive activ
Externí odkaz:
http://arxiv.org/abs/2303.09666
Autor:
Chelly, Haythem, Recho, Pierre
The dynamics of active matter driven by interacting molecular motors has a non-potential structure at the local scale. However, we show that there exists a quasi-potential effectively describing the collective self-organization of the motors propelli
Externí odkaz:
http://arxiv.org/abs/2112.10083
Publikováno v:
Int. J. Non-Linear Mech 139:103897, 2022
A living cell actively generates traction forces on its environment with its actin cytoskeleton. These forces deform the cell elastic substrate which, in turn, affects the traction forces exerted by the cell and can consequently modify the cell dynam
Externí odkaz:
http://arxiv.org/abs/2112.09997
While it is commonly observed that the shape dynamics of mammalian cells can undergo large random fluctuations, theoretical models aiming at capturing cell mechanics often focus on the deterministic part of the motion. In this paper, we present a fra
Externí odkaz:
http://arxiv.org/abs/2103.00865
Autor:
Dolega, Monika, Zurlo, Giuseppe, Goff, Magali Le, Greda, Magdalena, Verdier, Claude, Joanny, Jean-François, Cappello, Giovanni, Recho, Pierre
The internal and external mechanical environment plays an important role in tumorogenesis. As a proxy of an avascular early state tumor, we use multicellular spheroids, a composite material made of cells, extracellular matrix and permeating fluid. We
Externí odkaz:
http://arxiv.org/abs/2011.01131
Autor:
Erlich, Alexander, Recho, Pierre
The mechanism by which cells measure the dimension of the organ in which they are embedded, and slow down their growth when the final size is reached, is a long-standing problem of developmental biology. The role of mechanics in this feedback is cons
Externí odkaz:
http://arxiv.org/abs/2011.00486
Autor:
Recho, Pierre, Fouchard, Jonathan, Wyatt, Tom, Khalilgharibi, N., Charras, Guillaume, Kabla, Alexandre
Publikováno v:
Phys. Rev. E 102, 012401 (2020)
The balance between stretching and bending deformations characterizes shape transitions of thin elastic sheets. While stretching dominates the mechanical response in tension, bending dominates in compression after an abrupt buckling transition. Recen
Externí odkaz:
http://arxiv.org/abs/2002.03966
Autor:
Erlich, A., Recho, P.
Publikováno v:
In Journal of the Mechanics and Physics of Solids September 2023 178