Results 31 to 40 of about 140,438 (194)

Why antiplectic metachronal cilia waves are optimal to transport bronchial mucus [PDF]

open access: greenPhysical Review E, 2019
The coordinated beating of epithelial cilia in human lungs is a fascinating problem from the hydrodynamics perspective. The phase lag between neighboring cilia is able to generate collective cilia motions, known as metachronal waves. Different kinds of waves can occur, antiplectic or symplectic, depending on the direction of the wave with respect to ...
Sébastien Poncet   +5 more
openaire   +5 more sources

Metachronal waves in concentrations of swimming Turbatrix aceti nematodes and an oscillator chain model for their coordinated motions [PDF]

open access: greenPhys. Rev. E 104, 014412 (2021), 2021
At high concentration, free swimming nematodes known as vinegar eels ({\it Turbatrix aceti}), collectively exhibit metachronal waves near a boundary. We find that the frequency of the collective traveling wave is lower than that of the freely swimming organisms.
Alice C. Quillen   +3 more
arxiv   +3 more sources

A quantitative interspecies comparison of the respiratory mucociliary clearance mechanism. [PDF]

open access: yesEur Biophys J, 2022
Collectively coordinated ciliary activity propels the airway mucus, which lines the luminal surface of the vertebrate respiratory system, in cranial direction. Our contemporary understanding on how the quantitative characteristics of the metachronal wave
Burn A   +5 more
europepmc   +3 more sources

Longitudinal to Transverse Metachronal Wave Transitions in an In Vitro Model of Ciliated Bronchial Epithelium [PDF]

open access: greenPhysical Review Letters, 2021
Myriads of cilia beat on ciliated epithelia, which are ubiquitous in life. When ciliary beats are synchronized, metachronal waves emerge, whose direction of propagation depends on the living system in an unexplained way. We show on a reconstructed human bronchial epithelium in-vitro that the direction of propagation is determined by the ability of ...
Olivier Mesdjian   +6 more
  +7 more sources

Cilia-assisted hydromagnetic pumping of biorheological couple stress fluids [PDF]

open access: yesPropulsion and Power Research, 2019
A theoretical study is conducted for magnetohydrodynamic pumping of electro-conductive couple stress physiological liquids (e.g. blood) through a two-dimensional ciliated channel. A geometric model is employed for the cilia which are distributed at equal
K. Ramesh, D. Tripathi, O. Anwar Bég
doaj   +4 more sources

Curved Surfaces Induce Metachronal Motion of Microscopic Magnetic Cilia. [PDF]

open access: yesACS Appl Mater Interfaces
Cilia are hair-like organelles present on cell surfaces. They often exhibit a collective wave-like motion that can enhance fluid or particle transportation function, known as metachronal motion.
Cui Z   +3 more
europepmc   +3 more sources

Metachronal wave analysis for non-Newtonian fluid under thermophoresis and Brownian motion effects

open access: goldResults in Physics, 2017
This paper analyse the mathematical model of ciliary motion in an annulus. The effect of convective heat transfer and nanoparticle are taken into account. The governing equations of Jeffrey six-constant fluid along with heat and nanoparticle are modelled
A. Shaheen, S. Nadeem
doaj   +2 more sources

Spontaneous Synchronization of Beating Cilia: An Experimental Proof Using Vision-Based Control [PDF]

open access: yesFluids, 2018
This article investigates the formation of spontaneous coordination in a row of flexible 2D flaps (artificial cilia) in a chamber filled with a high viscous liquid (Re = 0.12). Each flap is driven individually to oscillate by a rotary motor with the root
Mohamed Elshalakani   +1 more
doaj   +4 more sources

Multi-ciliated microswimmers-metachronal coordination and helical swimming. [PDF]

open access: yesEur Phys J E Soft Matter, 2021
The dynamics and motion of multi-ciliated microswimmers with a spherical body and a small number N (with 5 < N < 60) of cilia with length comparable to the body radius, is investigated by mesoscale hydrodynamics simulations. A metachronal wave is imposed for the cilia beat, for which the wave vector has both a longitudinal and a latitudinal component ...
Rode S, Elgeti J, Gompper G.
europepmc   +2 more sources

Metachronal wave and hydrodynamic interaction for deterministic switching rowers [PDF]

open access: yes, 2003
11 pages, 7 ...
Lagomarsino, M. Cosentino   +2 more
openaire   +3 more sources

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