Hydrodynamics of suspensions of passive and active rigid particles: a rigid multiblob approach

F Balboa Usabiaga, B Kallemov, B Delmotte… - … in Applied Mathematics …, 2017 - msp.org
We develop a rigid multiblob method for numerically solving the mobility problem for
suspensions of passive and active rigid particles of complex shape in Stokes flow in …

Shape-programmed 3D printed swimming microtori for the transport of passive and active agents

RD Baker, T Montenegro-Johnson, AD Sediako… - Nature …, 2019 - nature.com
Through billions of years of evolution, microorganisms mastered unique swimming
behaviors to thrive in complex fluid environments. Limitations in nanofabrication have thus …

Clustering-induced self-propulsion of isotropic autophoretic particles

A Varma, TD Montenegro-Johnson, S Michelin - Soft matter, 2018 - pubs.rsc.org
Self-diffusiophoretic particles exploit local concentration gradients of a solute species in
order to self-propel at the micron scale. While an isolated chemically-and geometrically …

Geometric tuning of self-propulsion for Janus catalytic particles

S Michelin, E Lauga - Scientific reports, 2017 - nature.com
Catalytic swimmers have attracted much attention as alternatives to biological systems for
examining collective microscopic dynamics and the response to physico-chemical signals …

Hydrochemical interactions of phoretic particles: a regularized multipole framework

F Rojas-Pérez, B Delmotte, S Michelin - Journal of Fluid Mechanics, 2021 - cambridge.org
Chemically active colloids modify the concentration of chemical solutes surrounding them in
order to self-propel. In doing so, they generate long-ranged hydrodynamic flows and …

Confined self-propulsion of an isotropic active colloid

F Picella, S Michelin - Journal of Fluid Mechanics, 2022 - cambridge.org
To spontaneously break their intrinsic symmetry and self-propel at the micron scale, isotropic
active colloidal particles and droplets exploit the nonlinear convective transport of chemical …

Modeling chemo-hydrodynamic interactions of phoretic particles: A unified framework

A Varma, S Michelin - Physical Review Fluids, 2019 - APS
Phoretic particles exploit local self-generated physico-chemical gradients to achieve self-
propulsion at the micron scale. The collective dynamics of a large number of such particles …

Autophoretic motion in three dimensions

M Lisicki, SY Reigh, E Lauga - Soft Matter, 2018 - pubs.rsc.org
Janus particles with the ability to move phoretically in self-generated chemical concentration
gradients are model systems for active matter. Their motion typically consists of straight …

A scalable method to model large suspensions of colloidal phoretic particles with arbitrary shapes

B Delmotte, FB Usabiaga - arXiv preprint arXiv:2403.05337, 2024 - arxiv.org
Phoretic colloids self-propel thanks to surface flows generated in response to surface
gradients (thermal, electrical, or chemical), that are self-induced and/or generated by other …

Slender phoretic theory of chemically active filaments

P Katsamba, S Michelin… - Journal of Fluid …, 2020 - cambridge.org
Artificial microswimmers, or 'microbots', have the potential to revolutionise non-invasive
medicine and microfluidics. Microbots that are powered by self-phoretic mechanisms, such …