Results 91 to 100 of about 2,497,161 (207)

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

Innate immunity and chronic rhinosinusitis: What we have learned from animal models

open access: yesLaryngoscope Investigative Otolaryngology, Volume 1, Issue 3, Page 49-56, June 2016., 2016
Objective Chronic rhinosinusitis (CRS) is a heterogeneous and multifactorial disease characterized by dysregulated inflammation. Abnormalities in innate immune function, including sinonasal epithelial cell barrier function, mucociliary clearance, response to pathogen‐associated molecular patterns (PAMPs) via pattern recognition receptors, and the ...
Nyall R. London Jr., Andrew P. Lane
wiley   +1 more source

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

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

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  

Electroosmotic microchannel flow of blood conveying copper and cupric nanoparticles: Ciliary motion experiencing entropy generation using backpropagated networks

open access: yesZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Volume 104, Issue 5, May 2024.
Abstract A novel mathematical model for a hybrid (Cu–CuO/blood) Jeffrey nanofluid passing a vertical symmetric microchannel along with an electroosmosis pump is presented. The focuses on the advancement of mathematical modeling techniques, its comprehensive analysis of microfluidic system dynamics, and its potential to inform the optimal design of ...
Parikshit Sharma   +4 more
wiley   +1 more source

Hydrodynamic interactions of cilia on a spherical body [PDF]

open access: yesPhys. Rev. E 93, 033111 (2016), 2015
Microorganisms develop coordinated beating patterns on surfaces lined with cilia known as metachronal waves. For a chain of cilia attached to a flat ciliate, it has been shown that hydrodynamic interactions alone can lead the system to synchronize. However, several microorganisms possess a curve shaped ciliate body and so to understand the effect of ...
arxiv   +1 more source

Role of spatial heterogeneity on the collective dynamics of cilia beating in a minimal 1D model

open access: yes, 2017
Cilia are elastic hairlike protuberances of the cell membrane found in various unicellular organisms and in several tissues of most living organisms. In some tissues such as the airway tissues of the lung, the coordinated beating of cilia induce a fluid ...
Dey, Supravat   +2 more
core   +1 more source

Light‐Fueled Nonreciprocal Self‐Oscillators for Fluidic Transportation and Coupling

open access: yesAdvanced Materials, Volume 36, Issue 12, March 21, 2024.
Non‐equilibrium self‐sustained motions are widely reported in stimuli‐responsive material systems. Here, a cilia‐like soft actuator that can perform self‐sustained oscillation under water, with programmable nonreciprocal strokes, is demonstrated. The self‐oscillators can realize microfluidic pumping, translocation of a micro‐object, and coupling ...
Zixuan Deng   +3 more
wiley   +1 more source

Physics of Microswimmers - Single Particle Motion and Collective Behavior

open access: yes, 2014
Locomotion and transport of microorganisms in fluids is an essential aspect of life. Search for food, orientation toward light, spreading of off-spring, and the formation of colonies are only possible due to locomotion.
Elgeti, Jens   +2 more
core   +1 more source

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