Results 31 to 40 of about 6,656,778 (331)
Oxygen Generation Using Catalytic Nano/Micromotors
Micromachines, 2021 Gaseous oxygen plays a vital role in driving the metabolism of living organisms and has multiple agricultural, medical, and technological applications. Different methods have been discovered to produce oxygen, including plants, oxygen concentrators and ...
Sumayyah Naeem +13 more
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Active nematic multipoles: Flow responses and the dynamics of defects and colloids
Frontiers in Physics, 2023 We introduce a general description of localised distortions in active nematics using the framework of active nematic multipoles. We give the Stokesian flows for arbitrary multipoles in terms of differentiation of a fundamental flow response and describe ...
Alexander J. H. Houston +3 more
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Frontiers in Physics, 2022 Recent studies have shown that packings of cells, both eukaryotic cellular tissues and growing or swarming bacterial colonies, can often be understood as active nematic fluids.
Fabian Jan Schwarzendahl +3 more
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Frontiers in Robotics and AI, 2021 Phase-change material–elastomer composite (PCMEC) actuators are composed of a soft elastomer matrix embedding a phase-change fluid, typically ethanol, in microbubbles. When increasing the temperature, the phase change in each bubble induces a macroscopic
Gilles Decroly +11 more
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Active Matter, Microreversibility, and Thermodynamics. [PDF]
Research (Wash D C), 2020 Active matter, comprising many active agents interacting and moving in fluids or more complex environments, is a commonly occurring state of matter in biological and physical systems. By its very nature, active matter systems exist in nonequilibrium states.
Gaspard P, Kapral R.
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Anomalous cell sorting behavior in mixed monolayers discloses hidden system complexities
New Journal of Physics, 2021 In tissue development, wound healing and aberrant cancer progression cell–cell interactions drive mixing and segregation of cellular composites. However, the exact nature of these interactions is unsettled.
Paul Heine +4 more
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Intermittent attractive interactions lead to microphase separation in nonmotile active matter. [PDF]
Physical Review E, 2022 Nonmotile active matter exhibits a wide range of nonequilibrium collective phenomena yet examples are crucially lacking in the literature. We present a microscopic model inspired by the bacteria Neisseria meningitidis in which diffusive agents feel ...
H. Alston +3 more
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Alignments of a Microparticle Pair in a Glow Discharge
Molecules, 2021 Stability of a vertically aligned microparticle pair in a stratified glow DC discharge is experimentally investigated. Using laser perturbations, it is shown that, for the same discharge parameters, a pair of microparticles can be suspended in two stable
Evgeny A. Lisin +4 more
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Theoretical framework for two-microswimmer hydrodynamic interactions
New Journal of Physics, 2021 Hydrodynamic interactions are crucial for determining the cooperative behavior of microswimmers at low Reynolds numbers. Here we provide a comprehensive analysis of the scaling laws and the strength of the interactions in the case of a pair of three ...
Sebastian Ziegler +4 more
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Irreversibility and Biased Ensembles in Active Matter: Insights from Stochastic Thermodynamics [PDF]
Annual Review of Condensed Matter Physics, 2021 Active systems evade the rules of equilibrium thermodynamics by constantly dissipating energy at the level of their microscopic components. This energy flux stems from the conversion of a fuel, present in the environment, into sustained individual motion.
'Etienne Fodor, R. Jack, M. Cates
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