Results 41 to 50 of about 1,201 (161)
Automatic Manipulation of Magnetically Actuated Helical Microswimmers in Static Environments
Micromachines, 2018 Electromagnetically actuated microswimmers have been widely used in various biomedical applications due to their minor invasive traits and their easy access to confined environments.
Jia Liu +3 more
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Advanced Science, 2022 Catalytic microswimmers that move by a phoretic mechanism in response to a self‐induced chemical gradient are often obtained by the design of spherical janus microparticles, which suffer from multi‐step fabrication and low yields.
Sandra Heckel +6 more
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Royal Society Open Science, 2023 Confinement increases contacts between microswimmers in dilute suspensions and affects their interactions. In particular, boundaries have been shown experimentally to lead to the formation of clusters that would not occur in bulk fluids.
A. Théry, C. C. Maaß, E. Lauga
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Artificial microswimmers get smart
Science Robotics, 2021 Reinforcement learning enables microswimmers to navigate through noisy and unexplored real-world environments.
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Effective Viscosity of Microswimmer Suspensions [PDF]
Physical Review Letters, 2010 The measurement of a quantitative and macroscopic parameter to estimate the global motility of a large population of swimming biological cells is a challenge Experiments on the rheology of active suspensions have been performed. Effective viscosity of sheared suspensions of live unicellular motile micro-algae (\textit{Chlamydomonas Reinhardtii}) is far
Rafaï, Salima +2 more
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Suppression of bacterial rheotaxis in wavy channels
Physical Review Research, 2022 Controlling the swimming behavior of bacteria is crucial, for example, to prevent contamination of ducts and catheters. We show that bacteria modeled by deformable microswimmers can accumulate in flows through straight microchannels either in their ...
Winfried Schmidt +2 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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Microswimmers near corrugated, periodic surfaces
Soft Matter, 2021 We derive an analytical theory for the hydrodynamic interactions between microswimmers and corrugated surfaces and study the impact of a periodic surface on the velocities of active agents.
Christina Kurzthaler, Howard A. Stone
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Photogyrotactic Concentration of a Population of Swimming Microalgae Across a Porous Layer
Frontiers in Physics, 2021 The light environment controls the swimming of microalgae through a light-seeking and avoiding behaviour, which is known as phototaxis. In this work, we exploit phototaxis to control the migration and concentration of populations of the soil microalga ...
Praneet Prakash, Ottavio A. Croze
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Tunable pheromone interactions among microswimmers
Proceedings of the National Academy of Sciences, 2023 Indirect interactions via shared memory deposited on the field (“field memory”) play an essential role in collective motions. Some motile species, such as ants and bacteria, use attractive pheromones to complete many tasks. Mimicking these kinds of collective behavior at the laboratory scale, we present a pheromone-based autonomous agent ...
Bokusui Nakayama +7 more
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