Results 51 to 60 of about 256,965 (211)

Discrete cilia modelling with singularity distributions [PDF]

, 2007
We discuss in detail techniques for modelling flows due to finite and infinite arrays of beating cilia. An efficient technique, based on concepts from previous ‘singularity models’ is described, that is accurate in both near and far-fields.
A.-K. Tornberg, A.T. Chwang, B.A.A. Orme, C.J. Brokaw, C.J. Tabin, D. J. Smith, E. A. Gaffney, E. Bartha, E. Bartha, E. Lauga, E.O. Tuck, F.A. Meyer, G.J. Hancock, G.K. Batchelor, G.R. Fulford, G.R. Fulford, G.R. Fulford, H. Hagiwara, H. Matsui, H. Matsui, J. McGrath, J. R. Blake, J.H.E. Cartwright, J.J.L. Higdon, J.M. Burgers, J.P.K. Tillett, J.R. Blake, J.R. Blake, J.R. Blake, J.R. Blake, J.R. Blake, K. Kosaki, L. Fauci, M. Eisenbach, M. Salathe, M.E. Staben, M.J. Lighthill, M.J. Sanderson, N. Liron, N. Liron, N. Liron, N. Liron, N. Liron, N. Phan-Thien, N.A. Brown, P. Talbot, R. Tarran, R.C. Boucher, R.E. Johnson, R.G. Cox, R.J. Clarke, S. Childress, S. Gueron, S. Gueron, S. Gueron, S. Nonaka, S. Nonaka, S. Nonaka, W.E. Williams, X.Z. Tang, Y. Okada   +60 more
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Metachronal motion of artificial magnetic cilia [PDF]

Soft Matter, 2018,14, 3689-3693, 2018
Organisms use hair-like cilia that beat in a metachronal fashion to actively transport fluid and suspended particles. Metachronal motion emerges due to a phase difference between beating cycles of neighboring cilia and appears as traveling waves propagating along ciliary carpet.
arxiv   +1 more source

Fusion of the β2‐adrenergic receptor with either Gαs or βarrestin‐2 produces constitutive signaling by each pathway and induces gain‐of‐function in BEAS‐2B cells

FASEB BioAdvances, Volume 4, Issue 12, Page 758-774, December 2022., 2022
Abstract The β2AR is a prototypical G protein‐coupled receptor (GPCR) known to orchestrate different cellular responses by the stimulation of specific signaling pathways. The best‐established signaling pathways for the β2AR are the canonical Gs pathway and the alternative β arrestin 2 (βarr2) pathway.
Emilio Y. Lucero‐Garcia Rojas, Arfaxad Reyes‐Alcaraz, Kehe Ruan, Bradley K. McConnell, Richard A. Bond   +4 more
wiley   +1 more source

Microfluidic propulsion by the metachronal beating of magnetic artificial cilia: a numerical analysis [PDF]

, 2011
In this work we study the effect of metachronal waves on the flow created by magnetically-driven plate-like artificial cilia in microchannels using numerical simulations. The simulations are performed using a coupled magneto-mechanical solid-fluid computational model that captures the physical interactions between the fluid flow, ciliary deformation ...
arxiv   +1 more source

Zooplankton act as cruise ships promoting the survival and pathogenicity of pathogenic bacteria

Microbiology and Immunology, Volume 66, Issue 12, Page 564-578, December 2022., 2022
Abstract Bacteria in general interact with zooplankton in aquatic ecosystems. These zooplankton–bacterial interactions help to shape the bacterial community by regulating bacterial abundances. Such interactions are even more significant and crucially in need of investigation in the case of pathogenic bacteria, which cause severe diseases in humans and ...
Ishara U. Perera, So Fujiyoshi, Yukiko Nishiuchi, Toshihiro Nakai, Fumito Maruyama   +4 more
wiley   +1 more source

Entropy analysis in ciliary transport of radiated hybrid nanofluid in presence of electromagnetohydrodynamics and activation energy

Case Studies in Thermal Engineering, 2021
The entropy of hybrid nanofluids flow driven by cilia beating is examined theoretically in this study. To control the cilia induced transport, electroosmosis and magnetohydrodynamics are introduced in the model.
Najma Saleem, Sufian Munawar, Dharmendra Tripathi   +2 more
doaj  

Ependyma in Neurodegenerative Diseases, Radiation-Induced Brain Injury and as a Therapeutic Target for Neurotrophic Factors

Biomolecules, 2023
The neuron loss caused by the progressive damage to the nervous system is proposed to be the main pathogenesis of neurodegenerative diseases. Ependyma is a layer of ciliated ependymal cells that participates in the formation of the brain-cerebrospinal ...
Xin-Yu Ma, Ting-Ting Yang, Lian Liu, Xiao-Chun Peng, Feng Qian, Feng-Ru Tang   +5 more
doaj   +1 more source

The nucleus of endothelial cell as a sensor of blood flow direction

Biology Open, 2013
Summary Hemodynamic shear stresses cause endothelial cells (ECs) to polarize in the plane of the flow. Paradoxically, under strong shear flows, ECs disassemble their primary cilia, common sensors of shear, and thus must use an alternative mechanism of ...
Eugene Tkachenko, Edgar Gutierrez, Semion K. Saikin, Per Fogelstrand, Chungho Kim, Alex Groisman, Mark H. Ginsberg   +6 more
doaj   +1 more source

A Gym for Cells—Direct Laser Writing of Magnetic Multilayered Micro Actuators for Mechanical Stimulation of Cells

Advanced Functional Materials, EarlyView.
Surface‐attached multilayer micromagnet systems are fabricated by two‐photon crosslinking. The pillar‐shaped micro actuators consist of a soft and flexible surface‐attached cell‐repellent hydrogel layer at the bottom, acting as a hinge and a cell‐adhesive hydrophobic polymer filled with magnetic nanoparticles.
Nicolas Geid, Ayman Husari, Eleonora Galli, Lukas Leffler, Pascal Tomakidi, Jürgen Rühe   +5 more
wiley   +1 more source

Experimental Investigation on the Behavior of Artificial Magnetic Cilia [PDF]

, 2014
This paper was presented at the 4th Micro and Nano Flows Conference (MNF2014), which was held at University College, London, UK. The conference was organised by Brunel University and supported by the Italian Union of Thermofluiddynamics, IPEM, the ...
4th Micro and Nano Flows Conference (MNF2014), Marucci, A, Romano, GP   +2 more
core