Results 41 to 50 of about 2,373,621 (185)
Hydrodynamics of metachronal paddling: effects of varying Reynolds number and phase lag [PDF]
Royal Society Open Science, 2019 Negatively buoyant freely swimming crustaceans such as krill must generate downward momentum in order to maintain their position in the water column. These animals use a drag-based propulsion strategy, where pairs of closely spaced swimming limbs are ...
Mitchell P. Ford +3 more
doaj +1 more source
Emergence of metachronal waves in active microtubule arrays [PDF]
Physical Review Fluids, 2019 The physical mechanism behind the spontaneous formation of metachronal waves in microtubule arrays in a low Reynolds number fluid has been of interest for the past several years, yet is still not well understood. We present a model implementing the hydrodynamic coupling hypothesis from first principles, and use this model to simulate kinesin-driven ...
Stephen E. Martin +2 more
openaire +5 more sources
bioRxiv, 2021 Motile cilia are hair-like cell extensions present in multiple organs of the body. How cilia coordinate their regular beat in multiciliated epithelia to move fluids remains insufficiently understood, particularly due to lack of rigorous quantification ...
Christa Ringers +6 more
semanticscholar +1 more source
Metachronal Wave of Cilia Transport in a Curved Channel
Zeitschrift für Naturforschung A, 2015 Abstract In this article, the mechanism of cilia-induced flow is discussed through a mathematical model. In this analysis two-dimensional flow of a viscous fluid is observed in a curved channel with ciliated walls. The features of ciliary structures are determined by the dominance of viscous effects over inertial effects using the long ...
S Nadeem, H. Sadaf
semanticscholar +3 more sources
Advanced Engineering Materials, Volume 25, Issue 22, November 2023., 2023 A novel multifunctional magnetically actuated micro‐lamellar mechatronic platform for efficient transportation of droplets and small solid objects is reported. The propulsion is realized using a four‐pole rotating magnet, resulting in two modes of object transportation: “pushing” mode for precise positioning and “bouncing” mode for heavier solid ...
Gaia Kravanja +6 more
wiley +1 more source
Rheological fluid motion in tube by metachronal waves of cilia [PDF]
Applied Mathematics and Mechanics, 2017 This paper presents a theoretical study of a non-linear rheological fluid transport in an axisymmetric tube by cilia. However, an attempt has been made to explain the role of cilia motion on the transport of fluid through the ductus efferentes of the male reproductive tract.
S. Maiti, S. Maiti, Sanjay Kumar Pandey
openaire +3 more sources
Metachronal waves in magnetic micro-robotic paddles for artificial cilia [PDF]
Communications Materials, 2021 AbstractBiological cilia generate fluid movement within viscosity-dominated environments using beating motions that break time-reversal symmetry. This creates a metachronal wave, which enhances flow efficiency. Artificially mimicking this behaviour could improve microfluidic point-of-care devices, since viscosity-dominated fluid dynamics impede fluid ...
Andrew D. Gilbert +5 more
openaire +3 more sources
Limnology and Oceanography, Volume 67, Issue 12, Page 2706-2717, December 2022., 2022 Abstract Lobate ctenophores are often numerically dominant members of oceanic epipelagic and midwater ecosystems. Despite this, little is known about their trophic ecology. Multiple, co‐occurring species are often found in these ecosystems and appear to feed similarly via feeding currents that entrain prey.
Malaika Cordeiro +4 more
wiley +1 more source
THE METACHRONAL WAVE OF LATERAL CILIA OF MYTILUS EDULIS [PDF]
The Journal of Cell Biology, 1972 The form of beat of cilia and the structure of the metachronal wave on the lateral gill epithelium of Mytulus edulis have been studied on living material by interference-contrast microscopy and stroboscopic illumination, and compared with the same features in rapid-fixed preparations studied by light microscopy and with the scanning electron microscope.
Michael A. Sleigh, Edward Aiello
openaire +3 more sources
A Synthetic Minimal Beating Axoneme
Small, Volume 18, Issue 32, August 11, 2022., 2022 Cilia and flagella are cellular appendages that beat rhythmically to transport fluids and propel living organisms. The authors report the reconstitution of a synthetic cilium from the bottom up using biological building blocks, namely microtubules and axonemal dynein.
Isabella Guido +7 more
wiley +1 more source