Université Paris-Saclay

MMOI (Matière molle aux interfaces – Soft interfaces) Group leader – 20 people.

Head of the “Soft matter and physics/biology interface” axis of the Laboratoire de physique des solides– 70 people.

Directeur de recherche CNRS (CNRS Research Professor)

Chargé de mission à l’Institut de physique du CNRS – Chargé du suivi de la prospective.

Bât. 510 – Campus d’Orsay
91405 Orsay Cedex
Tél. : +33 (0)1 69 15 70 78/+33 (0)6 71 81 86 93
Mail : frederic.restagno[at]universite-paris-saclay.fr

Full CV in French

Ecole doctorale: Physique en Ile de France


  • Soft matter physics in general
  • Friction and adhesion of polymers
  • Poly-ionic liquides
  • Soap films and foam stability
  • Friction in interleaved sytems


  • 2000 : PhD in Physics. ENS Lyon
  • 2013 : Habilitation à diriger les recherches, Université Paris-Sud

Present PhDs and post-docs

I am currently happy to mentor some amazing students. If you want to now more about them, do not hesitate to google them.

  • Tiago Outerelo-Corvo – 50 % – Directeur de thèse (Début oct. 2020, ANR POILLU). Sujet : Lubrifiants poly(liquides ioniques) améliorés : structure multi-échelle et propriétés interfaciales – Co-encadrement : Alexis Chennevière (CEA-LLB).
  • Suzanne Lafon – 60 % – Directeur de thèse (Début oct. 2020, CDSN ENS Paris). Sujet : Effet de la température sur le frottement de liquides sur des surfaces solides – Co-encadrement : Alexis Chennevière (CEA – LLB)
  • Alice Etienne-Simonetti – 30 % Co-directeur de thèse (Début oct. 2021, ANR DRAINFILM): Sujet Étude de la régénération marginale – Direction de thèse : Emmanuelle Rio.
  • Elissa Saad – 30 % – Codirecteur de thèse (Début décembre 2022, ANR BONSAI). Sujet : Démouillage de films minces de copolymères à bloc – Direction de thèse : Guillaume Miquelard-Garnier et Sébastien Roland.
Marina Pasquet et Frédéric Restagno. Photo: Serge Guichard

Past PhDs and post-docs (Only recent)

Gabriel Guyard – 50 % Directeur de thèse (Début oct. 2019, CD EDPIF). Sujet : Transport hydrodynamique dans les solutions de polymères en milieux confinés – Co-directeur : Josh McGraw.

Marie Corpart – 30 % – Directeur de thèse (Début oct. 2019, CIFRE Saint-Gobain). Sujet : Évaporation en transport convectif – Co-directeur : François Boulogne (HDR).

Marina Pasquet – 30 % – Co-directeur de thèse (2018-2022) – Directrice de thèse Emmanuelle Rio – Sujet de la thèse : stabilité d’objets savonneux. Currently Post-doc Berkeley University with Pr. Joelle Frechette.

Marion Grzelka – 70% – Directeur de thèse. (L. Léger – coadvisor). Currently Post-doc University of Amesterdam with Pr. Daniel Bonn.

Raphaelle Taub – 70 % – Directeur de thèse (C. Poulard – coadvisor). Currently CEO of MATRICIS.ai

Marceau Hénot – 70 % – Directeur de thèse. (L. Léger – coadvisor). Currently Researcher at CEA SPEC.

Mathieu Mantelet – 20 % – Co-directeur de thèse. (I Souchon directrice de thèse, PI responsable Vincent Mathieu). Consultant certifié chez L’oiseau rare.

Present teaching activities

Despite a CNRS position, which means that teaching is not mandatory, I developed among the years a real interest in physics teaching at master lever. I list here only a couple of lecture I gave among the years.

  • Préparation à l’agrégation externe de sciences physiques option physique – ENS Paris-Saclay
    • Cours de mécanique des fluides [16 h/year]
    • Corrections de leçons et montages
  • Jury de l’agrégation interne de physique-chimie (2018-2022)
  • Formation mécanique des fluides à destination des professeurs·es- Académie Orléans-Tours [Poly]

Past teaching or related activities

The research theme of my work is the mechanics at interfaces and the role of the structure of this interface on the global behavior at the macroscopic scale. Among the diffferent projects that I have, I can cite.

  • The mechanical properties of the solid-fluid interface. The question that interests me is how simple or complex fluids slip on the walls and what are the mechanisms of transmission of interfacial stresses. For example, in the last few years, I have been working on the slip of polymer melts and solutions (together with Liliane Léger (thanks to her!, Elisabeth Charlaix and Josh-Mc Graw): role of the nature of the interface, role of the structure of the interface, influence of molecular parameters, influence of temperature. In collaboration with François Boulogne and Emmanuelle Rio we have extended this question to the problem of the friction of liquid foams on solids. I have recently collaborated with Vincent Mathieu and Isabelle Souchon (INRAE, Grignon) on the question of the interface between food gels and rough surfaces. Even more recently, together with Alexis Chennevière (LLB CEA), we extended our study of the case of solid-polyionic liquid interfaces.
  • The mechancial properties of the fluid-gas interface. A second type of interfaces for which I study the mechanical properties are the liquid-air interfaces in the presence of surfactants. To be more precise, the question we are trying to address is the question of the generation and death of soap films and the role of the interface in these two phenomena. I started this work when Emmanuelle Rio joined the LPS, as it was a continuation of my post-doc work with David Quéré. Recently, we have been focusing on two issues: the role of evaporation, and the problem of entrainment at high capillary and Reynolds numbers by building in particular a device for automatic production of giant soap films.
  • The mechanical properties of the solid-solid interfaces. After having worked for several years on adhesion and friction problems on textured surfaces with Christophe Poulard, we have undertaken a systematic study of the role of adhesion and friction in interleaved systems.

Overall, my profile is that of an experimental physicist, interested in taking physical chemistry into account. We develop original experimental devices.

Keywords : Soft matter, physics, adhesion, friction, surfactants, soap films, polymers, interfaces.

Restagno, F. (2020, 26/02). How does the elasticity affect the slip of a liquid. Annual Adhesion Society Meeting, Charleston (USA).
Restagno, F. (2020, 23/06). Slip of polymer liquids [Conférence]. 11th Liquid Matter Conference, (Online), Prague, Czech Republic.
Restagno, F. (2018, 2-1/3). Foam entrainment on rough solids. Adhesion Society Meeting, San Diego, USA.
Restagno, F. (2023, 7-4/8). Onset of slip at the solid-liquid interface. [Conférence]. International congress of rheology, Athène, Grèce.
Corpart, M., Restagno, F., & Boulogne, F. (2024). Measuring relative humidity from evaporation with a wet-bulb thermometer: The psychrometer. American Journal of Physics, 92(1), 36–42. https://doi.org/10.1119/5.0154559
Restagno, F. (2021, April 10). Effect of the temperature on the slip of a liquid at a solid-liquid interface [Conférence]. Journée des Systèmes & Matière complexe - PHOM, Orsay, France.
Restagno, F. (2019, 8/3). Wall slip of complex fluids: interfacial friction versus slip length [Conférence]. APS March Meeting, Boston, USA.
Restagno, F. (2029, 26 juillet). Friction mechanisms of polymer at solid/liquid interfaces on ideal surfaces [Conférence]. 2019 Gordon Research Conference on Adhesion, Mount Holyoke (USA).
Restagno, F. (2019, April 4). Fluorescence imaging and polymers [Workshop]. Workshop, Villeurbanne, France.
Ricard, A., Restagno, F., Jang, Y. H., Lansac, Y., & Raspaud, E. (2023). Corrosion-driven droplet wetting on iron nanolayers. Scientific Reports, 13(1), 18288. https://doi.org/10.1038/s41598-023-45547-9
Boulogne, F., Rio, E., & Restagno, F. (2023). Evaporation-Induced Temperature Gradient in a Foam Column. Langmuir, 39(40), 14256–14262. https://doi.org/10.1021/acs.langmuir.3c01463
Restagno, F. (2021, 23/06). Slip of polymer liquids [Conférence]. 11th Liquid Matter Conference, (Online), Prague, Czech Republic.
Restagno, F. (2019, 26/07). Friction mechanisms of polymer at solid/liquid interfaces on ideal surfaces [Conférence]. Gordon Research Conference on Adhesion, Mount Holyoke (USA).
Corpart, M., Restagno, F., & Boulogne, F. (2023). Analytical prediction of the temperature and the lifetime of an evaporating spherical droplet. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 675, 132059. https://doi.org/10.1016/j.colsurfa.2023.132059
Pasquet, M., Restagno, F., Cantat, I., & Rio, E. (2023). Thickness profiles of giant soap films. Physical Review Fluids, 8(3), 034001. https://doi.org/10.1103/PhysRevFluids.8.034001
Corpart, M., Restagno, F., & Boulogne, F. (2023). Coffee stain effect on a fibre from axisymmetric droplets. Journal of Fluid Mechanics, 957, A24. https://doi.org/10.1017/jfm.2023.59
Lafon, S., Chennevière, A., Restagno, F., Merabia, S., & Joly, L. (2023). Giant slip length at a supercooled liquid-solid interface. Physical Review E, 107(2), 025101. https://doi.org/10.1103/PhysRevE.107.025101
Guyard, G., Restagno, F., & McGraw, J. D. (2022). Elastohydrodynamic Relaxation of Soft and Deformable Microchannels. Physical Review Letters, 129(20), 204501. https://doi.org/10.1103/PhysRevLett.129.204501
Pasquet, M., Wallon, L., Fusier, P.-Y., Restagno, F., & Rio, E. (2022). An optimized recipe for making giant bubbles. The European Physical Journal E, 45(12), 101. https://doi.org/10.1140/epje/s10189-022-00255-6
Boulogne, F., Restagno, F., & Rio, E. (2022). Measurement of the Temperature Decrease in Evaporating Soap Films. Physical Review Letters, 129(26), 268001. https://doi.org/10.1103/PhysRevLett.129.268001
Restagno, F. (2015, May 20). Neutron reflectivity as a tool to study the interdigitation of grafted polymer chains and its dynamics. ITN Network NANOS3, Thiais, France.
Corpart, M., Dervaux, J., Poulard, C., Restagno, F., & Boulogne, F. (2022). Evaporation of liquid coating a fiber. Europhysics Letters, 139(4), 43001. https://doi.org/10.1209/0295-5075/ac6a06
Outerelo Corvo, T., Jourdain, A., O’Brien, S., Restagno, F., Drockenmuller, E., & Chennevière, A. (2022). Multiscale Structure of Poly(ionic liquid)s in Bulk and Solutions by Small-Angle Neutron Scattering. Macromolecules, 55(10), 4111–4118. https://doi.org/10.1021/acs.macromol.2c00290
Pasquet, M., Boulogne, F., Sant-Anna, J., Restagno, F., & Rio, E. (2022). The impact of physical-chemistry on film thinning in surface bubbles. Soft Matter, 18(24), 4536–4542. https://doi.org/10.1039/D2SM00157H
Chen, Q., Restagno, F., Langevin, D., & Salonen, A. (2022). The rise of bubbles in shear thinning viscoelastic fluids. Journal of Colloid and Interface Science, 616, 360–368. https://doi.org/10.1016/j.jcis.2022.02.043
Grzelka, M., Antoniuk, I., Drockenmuller, É., Chennevière, A., Léger, L., & Restagno, F. (2021). Slip and Friction Mechanisms at Polymer Semi-Dilute Solutions/Solid Interfaces. Macromolecules, 54(10), 4910–4917. https://doi.org/10.1021/acs.macromol.0c02804
Villey, R., Martinot, E., Cottin-Bizonne, C., Phaner-Goutorbe, M., Léger, L., Restagno, F., & Charlaix, E. (2013). Effect of Surface Elasticity on the Rheology of Nanometric Liquids. Physical Review Letters, 111(21), 215701. https://doi.org/10.1103/PhysRevLett.111.215701
Srivastava, R., Bosc, V., Restagno, F., Tournier, C., Menut, P., Souchon, I., & Mathieu, V. (2021). A new biomimetic set-up to understand the role of the kinematic, mechanical, and surface characteristics of the tongue in food oral tribological studies. Food Hydrocolloids, 115, 106602. https://doi.org/10.1016/j.foodhyd.2021.106602
Mariot, S., Pasquet, M., Klein, V., Restagno, F., & Rio, E. (2021). A new setup for giant soap films characterization. The European Physical Journal E, 44(4), 52. https://doi.org/10.1140/epje/s10189-021-00054-5
Mantelet, M., Srivastava, R., Restagno, F., Souchon, I., & Mathieu, V. (2020). Real time ultrasound assessment of contact progress between food gels and tongue mimicking surfaces during a compression. Food Hydrocolloids, 109, 106099. https://doi.org/10.1016/j.foodhyd.2020.106099
Barraud, T., Devisme, S., Hervet, H., Brunello, D., Klein, V., Poulard, C., Restagno, F., & Léger, L. (2020). Convection and diffusion assisted reactive coupling at incompatible semi-crystalline polymer interfaces. Journal of Physics: Materials, 3(3), 035001. https://doi.org/10.1088/2515-7639/ab7f9c
Grzelka, M., Antoniuk, I., Drockenmuller, E., Chennevière, A., Léger, L., & Restagno, F. (2020). Viscoelasticity-Induced Onset of Slip at the Wall for Polymer Fluids. ACS Macro Letters, 9(7), 924–928. https://doi.org/10.1021/acsmacrolett.0c00182
Vuong, S., Léger, L., & Restagno, F. (2020). Controlling interfacial instabilities in PP/EVOH coextruded multilayer films through the surface density of interfacial copolymers. Polymer Engineering & Science, pen.25389. https://doi.org/10.1002/pen.25389
Mantelet, M., Restagno, F., Souchon, I., & Mathieu, V. (2020). Using ultrasound to characterize the tongue-food interface: An in vitro study examining the impact of surface roughness and lubrication. Ultrasonics, 103, 106095. https://doi.org/10.1016/j.ultras.2020.106095
Marchand, M., Restagno, F., Rio, E., & Boulogne, F. (2020). Roughness-Induced Friction on Liquid Foams. Physical Review Letters, 124(11), 118003. https://doi.org/10.1103/PhysRevLett.124.118003
Restagno, F. (2013). Entraînements de liquides et interfaces polymères [HDR].
Beuguel, Q., Guinault, A., Léger, L., Restagno, F., Sollogoub, C., & Miquelard-Garnier, G. (2019). Nanorheology with a Conventional Rheometer: Probing the Interfacial Properties in Compatibilized Multinanolayer Polymer Films. ACS Macro Letters, 8(10), 1309–1315. https://doi.org/10.1021/acsmacrolett.9b00662
Barraud, C., Cross, B., Picard, C., Restagno, F., Léger, L., & Charlaix, E. (2019). Large slippage and depletion layer at the polyelectrolyte/solid interface. Soft Matter, 15(31), 6308–6317. https://doi.org/10.1039/C9SM00910H
Kiparissoff-Bondil, H., Devisme, S., Rauline, D., Chopinez, F., Restagno, F., & Léger, L. (2019). Evidences for flow-assisted interfacial reaction in coextruded PA6/PP/PA6 films. Polymer Engineering & Science, 59(S1), E44–E50. https://doi.org/10.1002/pen.24841
Hénot, M., Drockenmuller, E., Léger, L., & Restagno, F. (2018). Sensing adsorption kinetics through slip velocity measurements of polymer melts. The European Physical Journal E, 41(7). https://doi.org/10.1140/epje/i2018-11697-4
Restagno, F., Martinot, E., Villey, R., Leroy, S., Poulard, C., Charlaix, E., & Léger, L. (2014). Sensing the Mechanical Properties of Supported Micro- to Nano-elastic Films. In B. Bhushan, D. Luo, S. R. Schricker, W. Sigmund, & S. Zauscher (Eds.), Handbook of Nanomaterials Properties (pp. 575–614). Springer Berlin Heidelberg. https://doi.org/10.1007/978-3-642-31107-9_31
Hénot, M., Chennevière, A., Drockenmuller, E., Léger, L., & Restagno, F. (2017). Comparison of the Slip of a PDMS Melt on Weakly Adsorbing Surfaces Measured by a New Photobleaching-Based Technique. Macromolecules, 50(14), 5592–5598. https://doi.org/10.1021/acs.macromol.7b00601
Cross, B., Barraud, C., Picard, C., Léger, L., Restagno, F., & Charlaix, É. (2018). Wall slip of complex fluids: Interfacial friction versus slip length. Physical Review Fluids, 3(6). https://doi.org/10.1103/PhysRevFluids.3.062001
Hénot, M., Grzelka, M., Zhang, J., Mariot, S., Antoniuk, I., Drockenmuller, E., Léger, L., & Restagno, F. (2018). Temperature-Controlled Slip of Polymer Melts on Ideal Substrates. Physical Review Letters, 121(17), 177802-1-177802–177805. https://doi.org/10.1103/PhysRevLett.121.177802
Dies, L., Restagno, F., Weil, R., Léger, L., & Poulard, C. (2015). Role of adhesion between asperities in the formation of elastic solid/solid contacts. The European Physical Journal E, 38(12), 130. https://doi.org/10.1140/epje/i2015-15130-4
Saulnier, L., Champougny, L., Bastien, G., Restagno, F., Langevin, D., & Rio, E. (2014). A study of generation and rupture of soap films. Soft Matter, 2899–2906. https://doi.org/10.1039/c3sm52433g
Champougny, L., Miguet, J., Henaff, R., Restagno, F., Boulogne, F., & Rio, E. (2018). Influence of Evaporation on Soap Film Rupture. Langmuir, 3221–3227. https://doi.org/10.1021/acs.langmuir.7b04235
Hénot, M., Chennevière, A., Drockenmuller, E., Shull, K., Léger, L., & Restagno, F. (2017). Influence of grafting on the glass transition temperature of PS thin films. The European Physical Journal E, 40(1), 11. https://doi.org/10.1140/epje/i2017-11500-2
Alarcón, H., Salez, T., Poulard, C., Bloch, J.-F., Raphaël, É., Dalnoki-Veress, K., & Restagno, F. (2016). Self-Amplification of Solid Friction in Interleaved Assemblies. Physical Review Letters, 116(1), 015502. https://doi.org/10.1103/PhysRevLett.116.015502


I will be happy to receive some questions from students, colleagues, journalists concerning my research or my teaching. Do not hesitate to contact me.

Present activities


Président du Concours C’Génial (Fondation C’ Géniale – Science à l’Ecole)

Physics in schools and with public

I am used to give public lectures related to my research activity. Do not hesitate to contact (you can, for example, simply email me). me for that. Below are two examples (but I can prepare it for different students).

Frédéric Restagno doing bubbles for a conference

Photo (Serge Guichard)

Physics on TV and on the WEB

Science outreach is an interesting activity. I have chosen in the past to use TV and internet to promote science. You will see below some exemples.