53 citations · 165 across the 8 of their papers we have counts for
8 papers · 1 filter
The role of confined water in the emergence of electrostatic strong coupling as revealed by nanoseparated charged lipid layers
Swen Helstroffer, Ludovic Gardré, Giovanna Fragneto +7
This study investigates the interplay between Strong Coupling (SC) attraction and hydration repulsion in nanoconfined water between like-charged phospholipid layers. It challenges…
Measuring and upscaling micromechanical interactions in a cohesive granular material
Arnaud Hemmerle, Yuta Yamaguchi, Marcin Makowski +2
The mechanical properties of a disordered heterogeneous medium depend, in general, on a complex interplay between multiple length scales. Connecting local interactions to macroscop…
Attractive Interaction between Fully Charged Lipid Bilayers in a Strongly-Confined Geometry
Tetiana Mukhina, Arnaud Hemmerle, Valeria Rondelli +4
We investigate the interaction between highly charged lipid bilayers in the presence of monovalent counterions. Neutron and X-ray reflectivity experiments show that the water layer…
Worm-like instability of a vibrated sessile drop
Arnaud Hemmerle, Guillaume Froehlicher, Vance Bergeron +2
We study the effects of vertical sinusoidal vibrations on a liquid droplet with a low surface tension (ethanol) deposited on a solid substrate. In a precise range of amplitudes and…
Fracture of a model cohesive granular material
Alexander Schmeink, Lucas Goehring, Arnaud Hemmerle
We study experimentally the fracture mechanisms of a model cohesive granular medium consisting of glass beads held together by solidified polymer bridges. The elastic response of t…
A cohesive granular material with tunable elasticity
Arnaud Hemmerle, Matthias Schröter, Lucas Goehring
By mixing glass beads with a curable polymer we create a well-defined cohesive granular medium, held together by solidified, and hence elastic, capillary bridges. This material has…
Reduction in Tension and Stiffening of Lipid Membranes in an Electric Field Revealed by X-ray Scattering
Arnaud Hemmerle, Thierry Charitat, Giovanna Fragneto +1
The effect of AC electric fields on the elasticity of supported lipid bilayers has been investigated at the microscopic level using grazing incidence synchrotron x-ray scattering.…
Controlling interactions in supported bilayers from weak electrostatic repulsion to high osmotic pressure
Arnaud Hemmerle, Linda Malaquin, Thierry Charitat +3
Understanding interactions between membranes requires measurements on well-controlled systems close to natural conditions, in which fluctuations play an important role. We have det…