Results 41 to 50 of about 3,267 (215)

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

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

Dispersion of run-and-tumble microswimmers through disordered media. [PDF]

open access: yesPhysical Review E, 2023
Understanding the transport properties of microorganisms and self-propelled particles in porous media has important implications for human health as well as microbial ecology.
D. Saintillan
semanticscholar   +1 more source

Entropy production and thermodynamic inference for stochastic microswimmers [PDF]

open access: yesPhysical Review Research, 2023
The question of characterization of the degree of nonequilibrium activity in active matter systems is studied in the context of a stochastic microswimmer model driven by a chemical cycle.
Michalis Chatzittofi   +2 more
semanticscholar   +1 more source

Oscillatory rheotaxis of artificial swimmers in microchannels

open access: yesNature Communications, 2022
Biological and artificial microswimmers often navigate channels under external flow, where in many biomicroswimmers the active upstream motion is oscillatory. Here the authors demonstrate that regular, controllable, and reproducible oscillatory rheotaxis
Ranabir Dey   +4 more
doaj   +1 more source

Photopatterned microswimmers with programmable motion without external stimuli

open access: yesNature Communications, 2021
Maragoni microswimmers show the advantage of self-propulsion but their development is limited by fabrication techniques. Here, the authors use a photopatterning method which allows for a high throughput production of maragoni microswimmers with multiple ...
Yeongjae Choi   +11 more
doaj   +1 more source

Light-driven carbon nitride microswimmers with propulsion in biological and ionic media and responsive on-demand drug delivery

open access: yesScience Robotics, 2022
We propose two-dimensional poly(heptazine imide) (PHI) carbon nitride microparticles as light-driven microswimmers in various ionic and biological media.
Varun Sridhar   +7 more
semanticscholar   +1 more source

Emergence of active turbulence in microswimmer suspensions due to active hydrodynamic stress and volume exclusion

open access: yesCommunications Physics, 2022
Microswimmers are ubiquitous in nature and present highly-dynamic collective motion. This study presents computational simulations of spheroidal model-microswimmers confined between two walls, revealing two collective dynamic states, giant motile ...
Kai Qi   +3 more
doaj   +1 more source

Simulation of a model microswimmer

open access: yesJournal of Physics: Condensed Matter, 2009
We discuss the modelling of a microswimmer that operates in a 'squirmer' mode, by means of stochastic rotation dynamics. The squirmer that we model can easily be tuned between a 'pusher' and a 'puller'. We examine the flows produced by the squirmer and find that there is good agreement between both the predicted and simulated velocities of locomotion ...
Downton, Matthew T, Stark, Holger
openaire   +3 more sources

Hydrodynamic Synchronisation of Model Microswimmers [PDF]

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

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