Generalized three-sphere microswimmers

K Yasuda, Y Hosaka, S Komura - Journal of the Physical Society of …, 2023 - journals.jps.jp
Among several models for microswimmers, the three-sphere microswimmer proposed by
Najafi and Golestanian captures the essential mechanism for the locomotion of a …

Hydrodynamics can determine the optimal route for microswimmer navigation

A Daddi-Moussa-Ider, H Löwen, B Liebchen - Communications Physics, 2021 - nature.com
As compared to the well explored problem of how to steer a macroscopic agent, like an
airplane or a moon lander, to optimally reach a target, optimal navigation strategies for …

[HTML][HTML] The effect of axisymmetric confinement on propulsion of a three-sphere microswimmer

A Gürbüz, A Lemus, E Demir, OS Pak… - Physics of …, 2023 - pubs.aip.org
Swimming at the microscale has recently garnered substantial attention due to the
fundamental biological significance of swimming microorganisms and the wide range of …

Analytical approach to chiral active systems: suppressed phase separation of interacting Brownian circle swimmers

J Bickmann, S Bröker, J Jeggle… - The Journal of Chemical …, 2022 - pubs.aip.org
We consider chirality in active systems by exemplarily studying the phase behavior of planar
systems of interacting Brownian circle swimmers with a spherical shape. For this purpose …

Slippery rheotaxis: New regimes for guiding wall-bound microswimmers

S Ghosh, A Poddar - Journal of Fluid Mechanics, 2023 - cambridge.org
The near-surface locomotion of microswimmers under the action of background flows has
been studied extensively, whereas the intervening effects of complex surface properties …

Efficiency limits of the three-sphere swimmer

B Nasouri, A Vilfan, R Golestanian - Physical Review Fluids, 2019 - APS
We consider a swimmer consisting of a collinear assembly of three spheres connected by
two slender rods. This swimmer can propel itself forward by varying the lengths of the rods in …

State diagram of a three-sphere microswimmer in a channel

A Daddi-Moussa-Ider, M Lisicki… - Journal of Physics …, 2018 - iopscience.iop.org
Geometric confinements are frequently encountered in soft matter systems and in particular
significantly alter the dynamics of swimming microorganisms in viscous media. Surface …

Shape matters: a Brownian microswimmer in a channel

H Chen, JL Thiffeault - Journal of Fluid Mechanics, 2021 - cambridge.org
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 …

Dynamics of a simple model microswimmer in an anisotropic fluid: Implications for alignment behavior and active transport in a nematic liquid crystal

A Daddi-Moussa-Ider, AM Menzel - Physical Review Fluids, 2018 - APS
Several recent experiments investigate the orientational and transport behavior of self-
driven bacteria and colloidal particles in nematic liquid crystals. Correspondingly, we study …

Near-wall hydrodynamic slip triggers swimming state transition of micro-organisms

A Poddar, A Bandopadhyay… - Journal of Fluid …, 2020 - cambridge.org
The interaction of motile micro-organisms with a nearby solid substrate is a well-studied
phenomenon. However, the effects of hydrodynamic slippage on the substrate have …