Laboratoire Charles Coulomb UMR 5221 CNRS/UM2 (L2C)

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Photo de FABRE Pascale
FABRE Pascale      
Fonction : Chercheur CNRS
Organisme : CNRS
Directeur de Recherche

Directeur(trice) de thèse de : FATNASSI A.,
Autre(s) thème(s) de recherche ou rattachement(s) :
 - Matière molle pour l’agronomie et l’environnement
pascale.fabre_AT_umontpellier.fr
0467143982
Bureau: 118, Etg: 1, Bât: 11 - Site : Campus Triolet

Administration Locale:
  • Membre d'un pool d'experts
  • Direction/codirection de laboratoire
  • Direction d'équipe
Activités de Recherche:     
Biodégradation des polymères en milieu marin
Pollution of the ocean by plastic litter has become a major environmental problem in recent years. One of the reasons of the increasing pollution by conventional plastics is their extreme durability, initially considered as an advantage, but which leads to their undesirable accumulation in terrestrial and marine environments, whether as such or in the form of micro-plastics. This environmental concern thrives with an increasing demand from consumers for non-conventional plastics. Bio-sourced plastics is one of the major direction undertaken to produce more eco-friendly plastics, while keeping their use properties unchanged, but this alternative has not proven satisfactory yet. Moreover, even though the main degradation mechanisms have been identified (UV, waves, enzymes, bacteria), the degree to which “biodegradable” plastics actually biodegrade in the marine environment is still under debate.
Our research has two major axis :
-to deliver a comprehensive understanding of degradation mechanisms of polymers in marine environment in relation to their structure at different scales in order to lay down the basis for a generic model for the fate of plastics in the ocean (fragmentation versus biodegradation)
-to draw new directions towards the design of innovative eco-friendly polymers
In order to study degradation at the local scale of bacteria, we use atomic force microscopy (AFM) and measure both topographical and mechanical changes induced by the presence of the different degrading factors.
New concepts for eco-friendly materials are based on the synthesis of original block-copolymers.
Projets de Recherche:
Etude de la biodégradation de polymères en milieu marin par microscopie à force atomique : rôle des hétérogénéités de taille contrôlée à l’échelle de la bactérie (Labex NUMEV 2016-2017 et AAP Institut de Physique Emergence 2016)
Programme de Recherche/CV:
fichier PDF
Domaines de Recherche:
  • Physique/Matière Condensée/Science des matériaux
  • Sciences de l'environnement/Environnement et Société
Dernieres productions scientifiques :
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+ Experimental and theoretical study of the erosion of semi-crystalline polymers and the subsequent generation of microparticles. doi link

Auteur(s): Gaillard T., George M., Gastaldi Emmanuelle, Nallet Frédéric, Fabre P.

(Article) Publié: Soft Matter, vol. p. (2019)

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+ Biodegradation of polymers in aquatic environment hal link

Auteur(s): Gaillard T., George M.(Corresp.), Gastaldi Emmanuelle, Salomez Mélanie, Dussud Claire, Ghiglione Jean François, Hudecek Laetitia, Fabre P.(Corresp.)

(Affiches/Poster) 7ème journées scientifiques du LabEx Numev (Montpellier, FR), 2018-11-27

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. Microplastiques : d’une pollution invisible à un défi planétaire

Auteur(s): Fabre P.

(Séminaires) Ministère de la transition écologique et solidaire (PARIS, FR), 2018-10-19

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+ Dégradation marine et enzymatique d’un polymère biodégradable: l’acide polylactique hal link

Auteur(s): Gaillard T., George M., Fabre P.

Conference: Polymère et Océans 2018 (Montpellier, FR, 2018-01-15)

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+ Colonization of non-biodegradable and biodegradable plastics by marine microorganisms doi link

Auteur(s): Dussud Claire, Hudec Cindy, George M., Fabre P., Higgs Perry, Bruzaud Stéphane, Delort Anne-Marie, Eyheraguibel Boris, Meistertzheim Anne-Leïla, Jacquin Justine, Cheng Jingguang, Callac Nolwenn, Odobel Charlène, Rabouille Sophie, Ghiglione Jean-François

(Article) Publié: Frontiers In Microbiology, vol. 9 p.1571 (2018)
Texte intégral en Openaccess : fichier pdf

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