17 citations · 71 across the 11 of their papers we have counts for
11 papers
Universal Casimir attraction between filaments at the cell scale
Benjamin Spreng, Hélène Berthoumieux, Astrid Lambrecht +3
The electromagnetic Casimir interaction between dielectric objects immersed in salted water includes a universal contribution that is not screened by the solvent and therefore long…
A universal attractive interaction between filaments at the cell scale
Anne-Florence Bitbol, Hélène Berthoumieux, Benjamin Spreng +2
Actin filaments and microtubules both often form bundles of parallel filaments within cells. Here, we shed light on a universal attractive interaction between two such parallel fil…
Dielectric properties of aqueous electrolytes at the nanoscale
Maximilian R. Becker, Philip Loche, Douwe Jan Bonthuis +3
Despite the ubiquity of aqueous electrolytes, the effect of salt on water organization remains controversial. We introduce a nonlocal and nonlinear field theory for the nanoscale p…
A model of membrane deformations driven by a surface pH gradient
Toni V. Mendes, Jonas Ranft, Hélène Berthoumieux
Many cellular organelles are membrane-bound structures with complex membrane composition and shape. Their shapes have been observed to depend on the metabolic state of the organell…
Coupled interactions at the ionic graphene/water interface
Anton Robert, Hélène Berthoumieux, Marie-Laure Bocquet
We compute ionic free energy adsorption profiles at aqueous graphene interface by developing a self-consistent approach. To do so, we design a microscopic model for water and put t…
Ion Solvation in Dipolar Poisson models in a dual view
H. Berthoumieux, G. Monet, R. Blossey
We study the classic problem of ion solvation within the continuum theory of Dipolar-Poisson models. In this approach an ion is treated as a point charge within a sea of point dipo…
Electrostatic interactions in water: nonlocal electrostatic approach
M. Vatin, A. Porro, N. Sator +2
Can we avoid molecular dynamics simulations to estimate the electrostatic interaction between charged objects separated by a nanometric distance in water? To answer this question,…
Mitochondrial cristae modeled as an out-of-equilibrium membrane driven by a proton field
Nirbhay Patil, Stéphanie Bonneau, Fréderic Joubert +2
As the places where most of the fuel of the cell, namely ATP, is synthesized, mitochondria are crucial organelles in eukaryotic cells. The shape of the invaginations of the mitocho…
Dielectric response of the water hydration shell of an ion: a field theory approach
Hélène Berthoumieux, Fabien Paillusson
The goal of this work is to propose a simple continuous model that captures the dielectric properties of water at the nanometric scale. We write an electrostatic energy as a functi…
Gaussian field model for polar fluids as a function of density and polarization: toward a model for water
Hélène Berthoumieux
This work is concerned with a simple model for a polar fluid, a Gaussian field model based on the excess density and on the polarization. It is a convenient framework to implement…
Fluctuations in reactive networks subject to extrinsic noise studied in the framework of the Chemical Langevin Equation
Hélène Berthoumieux
Theoretical and experimental studies have shown that the fluctuations of in vivo systems break the fluctuation-dissipation theorem. One can thus ask what information is contained i…