Zobrazeno 1 - 10
of 100
pro vyhledávání: '"John, Karin"'
Autor:
Lecompte, William, John, Karin
Microtubules are key structural elements of living cells that are crucial for cell division, intracellular transport and motility. Recent experiments have shown that microtubule severing proteins and molecular motors stimulate the direct and localize
Externí odkaz:
http://arxiv.org/abs/2209.09161
Publikováno v:
Soft Matter 18, 5823-5832 (2022)
Cell crawling crucially depends on the collective dynamics of the acto-myosin cytoskeleton. However, it remains an open question to what extent cell polarization and persistent motion depend on continuous regulatory mechanisms and autonomous physical
Externí odkaz:
http://arxiv.org/abs/2107.08961
Publikováno v:
Phys. Rev. E 101, 062802 (2020)
We propose a generic model for thin films and shallow drops of a polar active liquid that have a free surface and are in contact with a solid substrate. The model couples evolution equations for the film height and the local polarization profile in t
Externí odkaz:
http://arxiv.org/abs/1911.08258
Publikováno v:
Soft Matter 14, 4464-4476 (2018)
The spreading of bacterial colonies at solid-air interfaces is determined by the physico-chemical properties of the involved interfaces. The production of surfactant molecules by bacteria is a widespread strategy that allows the colony to efficiently
Externí odkaz:
http://arxiv.org/abs/1803.00522
Publikováno v:
Langmuir 35, 7210-7221 (2018)
The three-phase contact line of a droplet on a smooth surface can be characterized by the Young-Dupr\'e equation. It relates the interfacial energies with the macroscopic contact angle $\theta_e$. On the mesoscale, wettability is modeled by a film-he
Externí odkaz:
http://arxiv.org/abs/1802.04042
Publikováno v:
Phys. Rev. Lett. 119, 078003 (2017)
We introduce and analyze a model for osmotically spreading biofilm colonies at solid-air interfaces that includes wetting phenomena, i.e. surface forces. The model combines a hydrodynamic description for biologically passive liquid suspensions with b
Externí odkaz:
http://arxiv.org/abs/1612.05450
Publikováno v:
AIMS Materials Science, 2016, 3(3): 1138-1159
Biofilms are ubiquitous macro-colonies of bacteria that develop at various interfaces (solid-liquid, solid-gas or liquid-gas). The formation of biofilms starts with the attachment of individual bacteria to an interface, where they proliferate and pro
Externí odkaz:
http://arxiv.org/abs/1607.08425
Many processes in eukaryotic cells, including cell motility, rely on the growth of branched actin networks from surfaces. Despite its central role the mechano-chemical coupling mechanisms which guide the growth process are poorly understood, and a ge
Externí odkaz:
http://arxiv.org/abs/1410.0561
Inspired by experiments on the actin driven propulsion of micrometer sized beads we develop and study a minimal mechanical model of a two-dimensional network of stiff elastic filaments grown from the surface of a cylinder. Starting out from a discret
Externí odkaz:
http://arxiv.org/abs/1011.3196