Results 51 to 60 of about 4,513 (242)

Anisotropic diffusion of ellipsoidal tracers in microswimmer suspensions [PDF]

open access: yesPhysical Review Fluids, 2021
Tracer particles immersed in suspensions of biological microswimmers such as E. coli or Chlamydomonas display phenomena unseen in conventional equilibrium systems, including strongly enhanced diffusivity relative to the Brownian value and non-Gaussian ...
Henrik Nordanger   +2 more
semanticscholar   +1 more source

Hydrodynamic Synchronisation of Model Microswimmers [PDF]

open access: yesJournal of Statistical Physics, 2009
17 pages, 8 ...
Putz, V, Yeomans, J
openaire   +2 more sources

Modeling Propulsion of Soft Magnetic Nanowires

open access: yesFrontiers in Robotics and AI, 2020
The emergent interest in artificial nanostructures that can be remotely navigated a specific location in a fluidic environment is motivated by the enormous potential this technology offers to biomedical applications.
Yoni Mirzae   +4 more
doaj   +1 more source

Magnetocapillary self-assemblies: locomotion and micromanipulation along a liquid interface [PDF]

open access: yes, 2017
This paper presents an overview and discussion of magnetocapillary self-assemblies. New results are presented, in particular concerning the possible development of future applications.
Grosjean, Galien   +2 more
core   +1 more source

Artificial microswimmers get smart

open access: yesScience Robotics, 2021
Reinforcement learning enables microswimmers to navigate through noisy and unexplored real-world environments.
openaire   +3 more sources

Effective Viscosity of Microswimmer Suspensions [PDF]

open access: yesPhysical 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
openaire   +4 more sources

Shape matters: a Brownian microswimmer in a channel [PDF]

open access: yesJournal of Fluid Mechanics, 2020
We consider the active Brownian particle model for a two-dimensional microswimmer with fixed speed, whose direction of swimming changes according to a Brownian process. The probability density for the swimmer obeys a Fokker–Planck equation defined on the
Hongfei Chen, Jean-Luc Thiffeault
semanticscholar   +1 more source

The Fantastic Voyage of the Trypanosome: A Protean Micromachine Perfected during 500 Million Years of Engineering

open access: yesMicromachines, 2018
The human body is constantly attacked by pathogens. Various lines of defence have evolved, among which the immune system is principal. In contrast to most pathogens, the African trypanosomes thrive freely in the blood circulation, where they escape ...
Timothy Krüger, Markus Engstler
doaj   +1 more source

Spatial Distribution of Flagellated Microalgae Chlamydomonas reinhardtii in a Quasi-Two-Dimensional Space

open access: yesMicromachines, 2023
Although the phenomenon of collective order formation by cell–cell interactions in motile cells, microswimmers, has been a topic of interest, most studies have been conducted under conditions of high cell density, where the space occupancy of a cell ...
Tetsuo Aono   +5 more
doaj   +1 more source

A deformable microswimmer in a swirl: capturing and scattering dynamics [PDF]

open access: yes, 2014
Inspired by the classical Kepler and Rutherford problem, we investigate an analogous set-up in the context of active microswimmers: the behavior of a deformable microswimmer in a swirl flow. First we identify new steady bound states in the swirl flow and
Löwen, Hartmut   +2 more
core   +2 more sources

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