Magnetically powered metachronal waves induce locomotion in self-assemblies [PDF]
Communications Physics, 2020 AbstractWhen tiny soft ferromagnetic particles are placed along a liquid interface and exposed to a vertical magnetic field, the balance between capillary attraction and magnetic repulsion leads to self-organization into well-defined patterns. Here, we demonstrate experimentally that precessing magnetic fields induce metachronal waves on the periphery ...
Galien Grosjean +3 more
openaire +5 more sources
Mixing and transport by ciliary carpets: a numerical study [PDF]
Journal of Fluid Mechanics / Volume 743 / March 2014, pp 124 - 14, 2013 We use a 3D computational model to study the fluid transport and mixing due to the beating of an infinite array of cilia. In accord with recent experiments, we observe two distinct regions: a fluid transport region above the cilia and a fluid mixing ...
Ding, Yang +3 more
core +4 more sources
Multi-ciliated microswimmers-metachronal coordination and helical swimming. [PDF]
Eur 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
Rode S, Elgeti J, Gompper G.
europepmc +3 more sources
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.
Khaderi, Syed +2 more
core +4 more sources
Efficiency optimization and symmetry-breaking in a model of ciliary locomotion [PDF]
Phys. Fluids (2010) 22, 111901, 2010 A variety of swimming microorganisms, called ciliates, exploit the bending of a large number of small and densely-packed organelles, termed cilia, in order to propel themselves in a viscous fluid.
Lauga, Eric, Michelin, Sebastien
core +4 more sources
Metachronal wave formation in a model of pulmonary cilia [PDF]
Computers & Structures, 2007 A three-dimensional simulation of the formation of metachronal waves in rows of pulmonary cilia is presented. The cilia move in a two-layer fluid model. The fluid layer adjacent to the cilia bases is purely viscous while the tips of the cilia move through a viscoelastic fluid.
Sorin Mitran
+6 more sources
Why antiplectic metachronal cilia waves are optimal to transport bronchial mucus [PDF]
Physical 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]
Phys. 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
Longitudinal to Transverse Metachronal Wave Transitions in an In Vitro Model of Ciliated Bronchial Epithelium [PDF]
Physical 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
Synchronization and metachronal waves of elastic cilia caused by unsteady viscous flow
Physical Review ResearchHydrodynamic coordination of cilia is ubiquitous in biology. It is commonly modeled using the steady Stokes equations. The flow around ciliated cells, however, exhibits finite-time vorticity diffusion, requiring a dynamical description.
Albert von Kenne +3 more
doaj +2 more sources