Results 61 to 70 of about 4,513 (242)

On the General Analytical Solution of the Kinematic Cosserat Equations [PDF]

open access: yes, 2016
Based on a Lie symmetry analysis, we construct a closed form solution to the kinematic part of the (partial differential) Cosserat equations describing the mechanical behavior of elastic rods.
D Michels   +22 more
core   +2 more sources

Microswimmers near corrugated, periodic surfaces

open access: yesSoft 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
openaire   +3 more sources

Taxis of Artificial Swimmers in a Spatio-Temporally Modulated Activation Medium [PDF]

open access: yes, 2017
Contrary to microbial taxis, where a tactic response to external stimuli is controlled by complex chemical pathways acting like sensor-actuator loops, taxis of artificial microswimmers is a purely stochastic effect associated with a non-uniform ...
Geiseler, Alexander   +2 more
core   +3 more sources

Rheotaxis and migration of an unsteady microswimmer

open access: yesJournal of Fluid Mechanics, 2021
Rheotaxis and migration of cells in a flow field have been investigated intensively owing to their importance in biology, physiology and engineering. In this study, first, we report our experiments showing that the microalgae Chlamydomonas can orient ...
T. Omori   +5 more
semanticscholar   +1 more source

Tunable pheromone interactions among microswimmers

open access: yesProceedings 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
openaire   +2 more sources

Purcell magneto-elastic swimmer controlled by an external magnetic field [PDF]

open access: yes, 2016
International audienceThis paper focuses on the mechanism of propulsion of a Purcell swimmer whose segments are magnetized and react to an external magnetic field applied into the fluid.
Alouges, F.   +3 more
core   +6 more sources

Pseudochemotactic drifts of artificial microswimmers [PDF]

open access: yesPhysical Review E, 2015
6 ...
Ghosh, Pulak K.   +3 more
openaire   +4 more sources

Random motion of a circle microswimmer in a random environment [PDF]

open access: yesNew Journal of Physics, 2020
We simulate the dynamics of a single circle microswimmer exploring a disordered array of fixed obstacles. The interplay of two different types of randomness, quenched disorder and stochastic noise, is investigated to unravel their impact on the transport
O. Chepizhko, T. Franosch
semanticscholar   +1 more source

Recent Advances in Microswimmers for Biomedical Applications

open access: yesMicromachines, 2020
Microswimmers are a rapidly developing research area attracting enormous attention because of their many potential applications with high societal value.
Ada-Ioana Bunea, Rafael Taboryski
doaj   +1 more source

Phenotyping single-cell motility in microfluidic confinement

open access: yeseLife, 2022
The movement trajectories of organisms serve as dynamic read-outs of their behaviour and physiology. For microorganisms this can be difficult to resolve due to their small size and fast movement.
Samuel A Bentley   +6 more
doaj   +1 more source

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