Results 81 to 90 of about 3,181,240 (276)
, 2023 29 pages, 14 figures, to be published in "Active Matter" (Editors: Giovanni Volpe, Nuno Ara\'ujo, Giorgio Volpe and Agnese Callegari)
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Active dynamics of tissue shear flow
New Journal of Physics, 2017 We present a hydrodynamic theory to describe shear flows in developing epithelial tissues. We introduce hydrodynamic fields corresponding to state properties of constituent cells as well as a contribution to overall tissue shear flow due to ...
Marko Popović +6 more
doaj +1 more source
Avalanche Dynamics for Active Matter in Heterogeneous Media
, 2017 Using numerical simulations, we examine the dynamics of active matter run-and-tumble disks moving in a disordered array of obstacles. As a function of increasing active disk density and activity, we find a transition from a completely clogged state to a ...
Reichhardt, C., Reichhardt, C. J. O.
core +1 more source
Structural biology of ferritin nanocages
FEBS Letters, EarlyView.Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley +1 more source
Confined active Brownian particles: theoretical description of propulsion-induced accumulation
New Journal of Physics, 2018 The stationary-state distribution function of confined active Brownian particles (ABPs) is analyzed by computer simulations and analytical calculations. We consider a radial harmonic as well as an anharmonic confinement potential. In the simulations, the
Shibananda Das +2 more
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Hydrodynamics of an odd active surfer in a chiral fluid
New Journal of Physics, 2023 We theoretically and computationally study the low-Reynolds-number hydrodynamics of a linear active microswimmer surfing on a compressible thin fluid layer characterized by an odd viscosity.
Yuto Hosaka +2 more
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FEBS Letters, EarlyView.We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley +1 more source
, 2010 Pedagogical review, 26 pages, chapter to appear in "Rheology of Complex Fluids"
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Acoustic trapping of active matter [PDF]
Nature Communications, 2016 AbstractConfinement of living microorganisms and self-propelled particles by an external trap provides a means of analysing the motion and behaviour of active systems. Developing a tweezer with a trapping radius large compared with the swimmers’ size and run length has been an experimental challenge, as standard optical traps are too weak.
Takatori, Sho C. +3 more
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A minimal spatial cell lineage model of epithelium: tissue stratification and multi-stability
New Journal of Physics, 2018 A minimal model which includes spatial and cell lineage dynamics for stratified epithelia is presented. The dependence of tissue steady state on cell differentiation models, cell proliferation rate, cell differentiation rate, and other parameters are ...
Wei-Ting Yeh, Hsuan-Yi Chen
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