Zobrazeno 1 - 10
of 808
pro vyhledávání: '"Lauga, Eric"'
The existence of temperature gradients within eukaryotic cells has been postulated as a source of natural convection in the cytoplasm, i.e. bulk fluid motion as a result of temperature-difference-induced density gradients. Recent computations have pr
Externí odkaz:
http://arxiv.org/abs/2407.14385
Bubble-propelled catalytic colloids stand out as a uniquely efficient design for artificial controllable micromachines, but so far lack a general theoretical framework that explains the physics of their propulsion. Here we develop a combined diffusiv
Externí odkaz:
http://arxiv.org/abs/2405.12552
Effective extensional-torsional elasticity and dynamics of helical filaments under distributed loads
Autor:
Gomez, Michael, Lauga, Eric
We study slender, helical elastic rods subject to distributed forces and moments. Focussing on the case when the helix axis remains straight, we employ the method of multiple scales to systematically derive an 'effective-column' theory from the Kirch
Externí odkaz:
http://arxiv.org/abs/2403.02299
The humble Petri dish is perhaps the simplest setting in which to examine the locomotion of swimming organisms, particularly those whose body size is tens of microns to millimetres. The fluid layer in such a container has a bottom no-slip surface and
Externí odkaz:
http://arxiv.org/abs/2402.08374
Biased locomotion is a common feature of microorganisms, but little is known about its impact on self-organisation. Inspired by recent experiments showing a transition to large-scale flows, we study theoretically the dynamics of magnetotactic bacteri
Externí odkaz:
http://arxiv.org/abs/2312.03158
Autor:
Htet, Pyae Hein, Lauga, Eric
The Drosophila melanogaster embryo, an elongated multi-nucleated cell, is a classical model system for eukaryotic development and morphogenesis. Recent work has shown that bulk cytoplasmic flows, driven by cortical contractions along the walls of the
Externí odkaz:
http://arxiv.org/abs/2310.12586
Eukaryotic swimming cells such as spermatozoa, algae or protozoa use flagella or cilia to move in viscous fluids. The motion of their flexible appendages in the surrounding fluid induces propulsive forces that balance with the viscous drag on the cel
Externí odkaz:
http://arxiv.org/abs/2310.03345
Publikováno v:
Phys. Rev. Fluids 8, 034202 (2023)
Recent experiments in cell biology have probed the impact of artificially-induced intracellular flows in the spatiotemporal organisation of cells and organisms. In these experiments, mild dynamical heating via focused infrared light from a laser lead
Externí odkaz:
http://arxiv.org/abs/2303.03063