Metachronal waves in the flagellar beating of Volvox and their hydrodynamic origin
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چکیده
منابع مشابه
Metachronal waves in the flagellar beating of Volvox and their hydrodynamic origin
Groups of eukaryotic cilia and flagella are capable of coordinating their beating over large scales, routinely exhibiting collective dynamics in the form of metachronal waves. The origin of this behavior--possibly influenced by both mechanical interactions and direct biological regulation--is poorly understood, in large part due to a lack of quantitative experimental studies. Here we characteri...
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From unicellular ciliates to the respiratory epithelium, carpets of cilia display metachronal waves, long-wavelength phase modulations of the beating cycles, which theory suggests may arise from hydrodynamic coupling. Experiments have been limited by a lack of organisms suitable for systematic study of flagella and the flows they create. Using time-resolved particle image velocimetry, we report...
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Hair-like appendages called cilia on the surface of a microorganism such as Paramecium or Opalina beat highly synchronized and form so-called metachronal waves that travel along the surfaces. In order to study under what principal conditions these waves form, we introduce a chain of beads, called rowers, each periodically driven by an external force on a straight line segment. To implement hydr...
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15 صفحه اولEffect of metachronal waves
In this chapter we study the effect of metachronal waves on the flow created by magnetically-driven artificial cilia in microchannels. We use a coupled magnetomechanical solid-fluid model that captures the physical interactions between the fluid flow, ciliary deformation and applied magnetic field. When a rotating magnetic field is applied to super-paramagnetic artificial cilia, they mimic the ...
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ژورنال
عنوان ژورنال: Journal of The Royal Society Interface
سال: 2015
ISSN: 1742-5689,1742-5662
DOI: 10.1098/rsif.2014.1358