Results 61 to 70 of about 3,267 (215)
Acoustically Powered Nano- and Microswimmers: From Individual to Collective Behavior
ACS Nanoscience Au, 2023 Micro- and nanoscopic particles that swim autonomously and self-assemble under the influence of chemical fuels and external fields show promise for realizing systems capable of carrying out large-scale, predetermined tasks.
Jeffrey M. McNeill, T. Mallouk
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Efficiency of cargo towing by a microswimmer [PDF]
Physical Review E, 2008 We study the properties of an arbitrary microswimmer towing a passive load through a viscous liquid. The simple close-form expression for the dragging efficiency of a microswimmer dragging a distant load is found, and the approximation for finite mutual proximity is derived.
O, Raz, A M, Leshansky
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Coarse Graining Nonisothermal Microswimmer Suspensions
Frontiers in Physics, 2021 We investigate coarse-grained models of suspended self-thermophoretic microswimmers. Upon heating, the Janus spheres, with hemispheres made of different materials, induce a heterogeneous local solvent temperature that causes the self-phoretic particle ...
Sven Auschra +4 more
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Confinement induced three-dimensional trajectories of microswimmers in rectangular channels [PDF]
Physical Review Fluids, 2023 We study the trajectories of a model microorganism inside three-dimensional channels with square and rectangular cross-sections. Using (i) numerical simulations based on lattice-Boltzmann method, and (ii) analytical expressions using far-field ...
Byjesh N. Radhakrishnan +3 more
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New Journal of Physics, 2007 We investigate the self-locomotion of an elongated microswimmer by virtue of the unidirectional tangential surface treadmilling. We show that the propulsion could be almost frictionless, as the microswimmer is propelled forward with the speed of the backward surface motion, i.e. it moves throughout an almost quiescent fluid.
Leshansky, Alexander M. +3 more
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Pseudochemotactic drifts of artificial microswimmers [PDF]
Physical Review E, 2015 6 ...
Ghosh, Pulak K. +3 more
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Magnetically Powered Biodegradable Microswimmers [PDF]
Micromachines, 2020 The propulsive efficiency and biodegradability of wireless microrobots play a significant role in facilitating promising biomedical applications. Mimicking biological matters is a promising way to improve the performance of microrobots. Among diverse locomotion strategies, undulatory propulsion shows remarkable efficiency and agility.
Ho Cheung Michael Sun +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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A Path toward Inherently Asymmetric Micromotors
Advanced Intelligent Systems, 2023 Since the highly cited paper by Purcell postulating the “Scallop theorem” almost 50 years ago, asymmetry is an unavoidable part of micromotors. It is frequently induced by self‐shadowing or self‐masking, resulting in so‐called Janus colloids.
Purnesh Chattopadhyay +3 more
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Microbial Adhesion on Circular Obstacles: An Optimization Study
Frontiers in Physics, 2022 Microbial filtration is an important process with applications in environmental, mining, and sanitary engineering. Here, we study the interplay between the motility of microswimmers and the imposed flow to determine the adhesion of bacteria at the ...
Tamara Faúndez +3 more
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