Results 81 to 90 of about 140,394 (193)

Programmable metachronal motion of densely packed magnetic artificial cilia [PDF]

open access: yesarXiv, 2023
Despite recent advances in artificial cilia technologies, the application of metachrony, which is the collective wavelike motion by cilia moving out-of-phase, has been severely hampered by difficulties in controlling densely packed artificial cilia at micrometer length scales. Moreover, there has been no direct experimental proof yet that a metachronal
arxiv  

Hydrodynamic Synchronization and Metachronal Waves on the Surface of the Colonial AlgaVolvox carteri [PDF]

open access: yesPhysical Review Letters, 2012
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.
Brumley, DR   +3 more
openaire   +5 more sources

Interpreting the synchronisation of driven colloidal oscillators via the mean pair interaction

open access: yesNew Journal of Physics, 2018
To explore the generic features of synchronisation facilitated by hydrodynamic interactions dominated by viscous forces, we investigate small systems of rowers; rowers are a highly simplified model for motile cilia, with each cilium approximated by a ...
E Hamilton, P Cicuta
doaj   +1 more source

Bioinspired Mechanisms and Actuation of Soft Robotic Crawlers

open access: yesAdvanced Science, Volume 12, Issue 16, April 24, 2025.
Researchers have been developing soft materials and robotic crawlers inspired by soft‐bodied animals to mimic effective crawling in complex environments. This review explores the state‐of‐the‐art in soft crawlers, highlighting the interaction between materials, crawling mechanisms, actuation, and applications. The review concludes by providing insights
Min Pan   +6 more
wiley   +1 more source

Realizing the physics of motile cilia synchronization with driven colloids

open access: yes, 2015
Cilia and flagella in biological systems often show large scale cooperative behaviors such as the synchronization of their beats in "metachronal waves".
Bruot, Nicolas, Cicuta, Pietro
core   +1 more source

Insight into the cilia motion of electrically conducting Cu-blood nanofluid through a uniform curved channel when entropy generation is significant

open access: yesAlexandria Engineering Journal, 2022
The energy loss during the beating cilia phenomenon in the human stomach causing acidity in the blood flow under certain conditions has been a serious topic in the modern medical field.
A. Riaz   +5 more
doaj  

Unicellular Organisms with Versatile Solutions at the Micro‐Scale: Functional Materials and Principles in Ciliates

open access: yesAdvanced Functional Materials, Volume 34, Issue 35, August 28, 2024.
Considering functional and structural materials and systems inspired by the principles of living nature, single‐celled organisms in particular are a promising model. The amazing bandwidth of different materials in ciliates ranges from nanostructured composites, over mineralized structures to self‐assembled protein structures.
Lennart Dörr   +3 more
wiley   +1 more source

A Mathematical Model for the Flow of a Casson Fluid due to Metachronal Beating of Cilia in a Tube

open access: yesThe Scientific World Journal, Volume 2015, Issue 1, 2015., 2015
A mathematical model is developed to study the transport mechanism of a Casson fluid flow inspired by the metachronal coordination between the beating cilia in a cylindrical tube. A two‐dimensional system of nonlinear equations governing the flow problem is formulated by using axisymmetric cylindrical coordinates and then simplified by employing the ...
A. M. Siddiqui   +3 more
wiley   +1 more source

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

open access: yes, 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
Bruecker, C., Elshalakani, M.
core   +2 more sources

Magnetic Reprogramming of Self‐Assembled Hard‐Magnetic Cilia

open access: yesAdvanced Materials Technologies, Volume 9, Issue 13, July 8, 2024.
Hard‐magnetic cilia form through self‐assembly of NdFeB microparticles within a thermoplastic polyurethane elastomer. NdFeB cilia can be remagnetized, which reprograms their actuation behaviors. Performing demagnetization prior to remagnetization improves the reprogrammability of the cilia.
Matthew R. Clary   +4 more
wiley   +1 more source

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