Publication


Featured researches published by Emmanuelle Rio.


npj Microgravity | 2015

How antifoams act: a microgravity study

Pavel Yazhgur; Dominique Langevin; Hervé Caps; Vincent Klein; Emmanuelle Rio; Anniina Salonen

Antifoams are widely used to control or to avoid foam production. In order to work, antifoam particles need to break foam films efficiently, which many antifoams do very well. However, once they have broken a film, to continue to be effective they need to be transported to the next film. We show, for the first time, that buoyancy has an important part in the transport of the antifoam particles. In microgravity, where buoyancy and gravitational drainage are strongly slowed down, diffusion leads to poor antifoam performance. The foam is stable for the duration of the experiment, whereas on Earth the foam starts to disappear immediately. Indeed, microgravity renders highly efficient antifoam practically useless.


Advances in Colloid and Interface Science | 2017

Withdrawing a solid from a bath: How much liquid is coated?

Emmanuelle Rio; François Boulogne

A solid withdrawn from a liquid bath entrains a film. In this review, after recalling the predictions and results for pure Newtonian liquids coated on simple solids, we analyze the deviations to this ideal case exploring successively three potential sources of complexity: the liquid-air interface, the bulk rheological properties of the liquid and the mechanical or chemical properties of the solid. For these different complexities, we show that significant effects on the film thickness are observed experimentally and we summarize the theoretical analysis presented in the literature, which attempt to rationalize these measurements.


Langmuir | 2018

Influence of Evaporation on Soap Film Rupture

Lorène Champougny; Jonas Miguet; Robin Henaff; Frédéric Restagno; François Boulogne; Emmanuelle Rio

Although soap films are prone to evaporate due to their large surface to volume ratio, the effect of evaporation on macroscopic film features has often been disregarded in the literature. In this work, we experimentally investigate the influence of environmental humidity on soap film stability. An original experiment allows to measure both the maximum length of a film pulled at constant velocity and its thinning dynamics in a controlled atmosphere for various values of the relative humidity [Formula: see text]. At first order, the environmental humidity seems to have almost no impact on most of the film thinning dynamics. However, we find that the film length at rupture increases continuously with [Formula: see text]. To rationalize our observations, we propose that film bursting occurs when the thinning due to evaporation becomes comparable to the thinning due to liquid drainage. This rupture criterion turns out to be in reasonable agreement with an estimation of the evaporation rate in our experiment.


Physical Review Letters | 2005

Boundary conditions in the vicinity of a dynamic contact line: experimental investigation of viscous drops sliding down an inclined plane.

Emmanuelle Rio; Adrian Daerr; Bruno Andreotti; Laurent Limat


Soft Matter | 2014

Foams stabilised by mixtures of nanoparticles and oppositely charged surfactants: relationship between bubble shrinkage and foam coarsening

Armando Maestro; Emmanuelle Rio; Wiebke Drenckhan; Dominique Langevin; Anniina Salonen


Langmuir | 2006

Moving Contact Lines of a Colloidal Suspension in the Presence of Drying

Emmanuelle Rio; Adrian Daerr; François Lequeux; Laurent Limat


Journal of Fluid Mechanics | 2009

Osmotically driven pipe flows and their relation to sugar transport in plants

Kåre Hartvig Jensen; Emmanuelle Rio; Rasmus Hansen; Christophe Clanet; Tomas Bohr


Colloids and Surfaces A: Physicochemical and Engineering Aspects | 2011

Generation and manipulation of bubbles and foams stabilised by magnetic nanoparticles

Jhonny A. Rodrigues; Emmanuelle Rio; J. Bobroff; Dominique Langevin; Wiebke Drenckhan


Colloids and Surfaces A: Physicochemical and Engineering Aspects | 2012

Generation of porous solids with well-controlled morphologies by combining foaming and flow chemistry on a Lab-on-a-Chip

A. Testouri; Laura R. Arriaga; C. Honorez; Meik Ranft; Jhonny A. Rodrigues; A. van der Net; A. Lecchi; Anniina Salonen; Emmanuelle Rio; Reine-Marie Guillermic; Dominique Langevin; Wiebke Drenckhan


Journal of Colloid and Interface Science | 2004

Probing with a laser sheet the contact angle distribution along a contact line

Emmanuelle Rio; Adrian Daerr; Laurent Limat

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