Results 171 to 180 of about 3,119 (198)
Programmable Phototaxis of Metal–Phenolic Particle Microswimmers
Advanced Materials, 2021 Light-driven directional motion is common in nature but remains a challenge for synthetic microparticles, particularly regarding collective motion on a macroscopic scale.
Jiajing Zhou +2 more
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Bacterial Biohybrid Microswimmers
Frontiers in Robotics and AI, 2018 Over millions of years, Nature has optimized the motion of biological systems at the micro and nanoscales. Motor proteins to motile single cells have managed to overcome Brownian motion and solve several challenges that arise at low Reynolds numbers.
Juliane Simmchen +2 more
exaly +7 more sources
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Physical Review E, 2009
The self-propelling motion of the flexible ferromagnetic swimmer is described. Necessary symmetry breaking is achieved by the buckling instability at field inversion. The characteristics of self-propulsion are in good agreement with the numerical calculations of the Floquet multipliers for the ferromagnetic filament under the action of ac magnetic ...
Belovs, M., Cēbers, A.
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The self-propelling motion of the flexible ferromagnetic swimmer is described. Necessary symmetry breaking is achieved by the buckling instability at field inversion. The characteristics of self-propulsion are in good agreement with the numerical calculations of the Floquet multipliers for the ferromagnetic filament under the action of ac magnetic ...
Belovs, M., Cēbers, A.
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Diffusion of eccentric microswimmers
Soft Matter, 2016We model the two-dimensional diffusive dynamics of an eccentric artificial microswimmer in a highly viscous medium.
Debajyoti, Debnath +4 more
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Physics Today, 2012
From gut-inhabiting bacteria to sea-dwelling algae, microorganisms display a penchant for coordinated movement. Nonlinear dynamics and fluid mechanics can help explain the curious behavior.
Eric Lauga, Raymond E. Goldstein
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From gut-inhabiting bacteria to sea-dwelling algae, microorganisms display a penchant for coordinated movement. Nonlinear dynamics and fluid mechanics can help explain the curious behavior.
Eric Lauga, Raymond E. Goldstein
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Programmable artificial phototactic microswimmer
Nature Nanotechnology, 2016Phototaxis is commonly observed in motile photosynthetic microorganisms. For example, green algae are capable of swimming towards a light source (positive phototaxis) to receive more energy for photosynthesis, or away from a light source (negative phototaxis) to avoid radiation damage or to hide from predators.
Baohu Dai +7 more
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Three-bead steering microswimmers
Physical Review E, 2018The self-propelled microswimmers have recently attracted considerable attention as model systems for biological cell migration as well as artificial micromachines. A simple and well-studied microswimmer model consists of three identical spherical beads joined by two springs in a linear fashion with active oscillatory forces being applied on the beads ...
Rizvi, Mohd Suhail +2 more
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Mathematical Modelling of Flagellated Microswimmers
Computational Mathematics and Mathematical Physics, 2018zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zaitsev, M. A., Karabasov, S. A.
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Optimal strokes for axisymmetric microswimmers
The European Physical Journal E, 2009We present a theory for low-Reynolds-number axisymmetric swimmers and a general strategy for the computation of strokes of maximal efficiency. An explicit equation characterizing optimal strokes is derived, and numerical strategies to obtain solutions are discussed.
ALOUGES F +2 more
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Actin-based propulsion of a microswimmer
Physical Review E, 2006A simple hydrodynamic model of actin-based propulsion of microparticles in dilute cell-free cytoplasmic extracts is presented. Under the basic assumption that actin polymerization at the particle surface acts as a force dipole, pushing apart the load and the free (nonanchored) actin tail, the propulsive velocity of the microparticle is determined as a ...
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