78 citations · 412 across the 16 of their papers we have counts for
16 papers
Electrostatics overcome acoustic collapse to assemble, adapt, and activate levitated matter
Sue Shi, Maximilian C. Hübl, Galien P. Grosjean +2
Acoustic levitation provides a unique method for manipulating small particles as it completely evades effects from gravity, container walls, or physical handling. These advantages…
Asymmetries in triboelectric charging: generalizing mosaic models to different-material samples and sliding contacts
Galien Grosjean, Scott Waitukaitis
Nominally identical materials exchange net electric charge during contact through a mechanism that is still debated. `Mosaic models', in which surfaces are presumed to consist of a…
Single-collision statistics reveal a global mechanism driven by sample history for contact electrification in granular media
Galien Grosjean, Scott Waitukaitis
Models for same-material contact electrification in granular media often rely on a local charge-driving parameter whose spatial variations lead to a stochastic origin for charge ex…
Magnetically powered metachronal waves induce locomotion in self-assemblies
Ylona Collard, Galien Grosjean, Nicolas Vandewalle
When tiny soft ferromagnetic particles are placed along a liquid interface and exposed to a vertical magnetic field, the balance between capillary attraction and magnetic repulsion…
Regimes of motion of magnetocapillary swimmers
Alexander Sukhov, Maxime Hubert, Galien Grosjean +6
The dynamics of a triangular magnetocapillary swimmer is studied using the lattice Boltzmann method. Performing extensive numerical simulations taking into account the coupled dyna…
Quantitatively consistent, scale-spanning model for same-material tribocharging
Galien Grosjean, Sebastian Wald, Juan Carlos Sobarzo +1
By rigorously accounting for mesoscale spatial correlations in donor/acceptor surface properties, we develop a scale-spanning model for same-material tribocharging. We find that me…
Wave turbulence on the surface of a fluid in a high-gravity environment
Annette Cazaubiel, Sébastien Mawet, Alexis Darras +4
We report on the observation of gravity-capillary wave turbulence on the surface of a fluid in a high-gravity environment. By using a large-diameter centrifuge, the effective gravi…
Magnetoelastic instability in soft thin films
M. Poty, F. Weyer, G. Grosjean +2
Ferromagnetic particles are incorporated in a thin soft elastic matrix. A lamella, made of this smart material, is studied experimentally and modeled. We show herein that thin film…
Capillary assemblies in a rotating magnetic field
Galien Grosjean, Maxime Hubert, Ylona Collard +4
Small objects floating on a fluid have a tendency to aggregate due to capillary forces. This effect has been used, with the help of a magnetic induction field, to assemble submilli…
Optimal motion of triangular magnetocapillary swimmers
Alexander Sukhov, Sebastian Ziegler, Qingguang Xie +7
A system of ferromagnetic particles trapped at a liquid-liquid interface and subjected to a set of magnetic fields (magnetocapillary swimmers) is studied numerically using a hybrid…
Surface microswimmers, harnessing the interface to self-propel
Galien Grosjean, Maxime Hubert, Ylona Collard +2
In the study of microscopic flows, self-propulsion has been particularly topical in recent years, with the rise of miniature artificial swimmers as a new tool for flow control, low…
Magnetocapillary self-assemblies: locomotion and micromanipulation along a liquid interface
Galien Grosjean, Maxime Hubert, Nicolas Vandewalle
This paper presents an overview and discussion of magnetocapillary self-assemblies. New results are presented, in particular concerning the possible development of future applicati…
Realization of the Najafi-Golestanian microswimmer
Galien Grosjean, Maxime Hubert, Guillaume Lagubeau +1
A paradigmatic microswimmer is the three-linked-spheres model, which follows a minimalist approach for propulsion by shape shifting. As such, it has been the subject of numerous an…
Statics and dynamics of magnetocapillary bonds
Guillaume Lagubeau, Galien Grosjean, Alexis Darras +3
When ferromagnetic particles are suspended at an interface under magnetic fields, dipole-dipole interactions compete with capillary attraction. This combination of forces has recen…
Remote control of self-assembled microswimmers
Galien Grosjean, Guillaume Lagubeau, Alexis Darras +3
Physics governing the locomotion of microorganisms and other microsystems is dominated by viscous damping. An effective swimming strategy involves the non-reciprocal and periodic d…
Magnetocapillary Swimmers
Maxime Hubert, Galien Grosjean, Yves-Eric Corbisier +4
We present an experiment where three mesoscopic soft ferromagnetic beads are placed onto a liquid surface and submitted to the influence of magnetic fields. A vertical magnetic fie…