Laboratoire de réactivité de surface

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  • Article dans une revue

Elaboration of antibiofilm surfaces functionalized with antifungal-cyclodextrin inclusion complexes.

Aïcha Gharbi, Vincent Humblot, Turpin Frédéric, Claire-Marie Pradier, Christine Imbert, Jean-Marc Berjeaud

To tackle the loss of activity of surfaces functionalized by coating and covalently bound molecules to materials, an intermediate system implying the noncovalent immobilization of active molecules in the inner cavity of grafted cyclodextrins (CDs) was investigated. The antifungal and antibiofilm…

FEMS Immunology and Medical Microbiology, 2012, pp.257-269. ⟨10.1111/j.1574-695X.2012.00932.x⟩. ⟨hal-00707695⟩

  • Thèse

Création de surfaces antibiofilms par greffage covalent de peptides et enzymes antibactériens sur les surfaces de cuivre et de titane, Creation of antibiofilm surfaces : covalent grafting of antimicrobial peptides and enzymes onto copper and titanium surfaces

Jessie Peyre

La contamination bactérienne et le développement de biofilms marins sont des problèmes récurrents, et terriblement coûteux sur les structures immergées des bâtiments de l'armée. L'emploi de composés bactéricides et nocifs pour l'écosystème est désormais interdit. Les travaux menés…, Bacterial contamination and formation of biofilms on immersed structures in seawater are frequent and at the origin of high cost maintenance treatments. The use of compounds biocidal, but also harmful for the ecosystem, is nowadays forbidden. The aim of this thesis work was to find new preventive…

Matériaux. Université Pierre et Marie Curie - Paris VI, 2012. Français. ⟨NNT : 2012PAO66535⟩. ⟨tel-00833434⟩

  • Thèse

Design de composites verts pour la dépollution des terres agricoles : expérience et théorie, Design of green composite for the decontamination of agricultural land : experimental and theoretical

Khaled El Adraa

Des matériaux verts biodégradables à base de Montmorillonite et de cystéine ont été préparés dans le but de co-adsorber des cations de métaux lourds et des polluants émergeants en combinant l’expérience et la théorie (calculs DFT). Les analyses thermiques différentielles ont permis d’estimer le…, Layered silicates like smectites are important soil components. Many works have been devoted to functionalize these materials in order to increase their chelating properties which may help retain heavy metals. It is well known that Cd2+, Hg2+, Pb2+, Co2+ and Zn2+ forms stable complexes with sulfur-…

Chimie-Physique [physics.chem-ph]. Université Pierre et Marie Curie - Paris VI, 2014. Français. ⟨NNT : 2014PA066539⟩. ⟨tel-01134688⟩

  • Article dans une revue

Aqueous nickel(II) hydroxycarbonate instead of nickel(0) colloids as precursors of stable Ni-silica based catalysts for the dry reforming of methane

Oscar Daoura, Ghenwa El Chawich, Maya Boutros, Nissrine El Hassan, Pascale Massiani, Ovidiu Ersen, Walid Baaziz, Franck Launay

Nickel(II) hydroxycarbonate colloids were synthesized in water by the reaction of nickel(II) with carbonate in the presence of hexadecyltrimethylammonium bromide. Then, they were dispersed onto SBA-15 affording, after calcination and reduction, a supported 3 wt% nickel(0) catalyst for the dry…

Catalysis Communications, 2020, 138, pp.105953. ⟨10.1016/j.catcom.2020.105953⟩. ⟨hal-02991878⟩

  • Article dans une revue

Ultrafast time-resolved quantum cascade laser diagnostic for enlightening the role of surface formate species in the photocatalytic oxidation of methanol

Josefine Schnee, Marco Daturi, Mohamad El-Roz

In the present work, a new quantum cascade laser (QCL)-assisted operando FT-IR setup was used to get direct insight into the relationship between the overall catalytic performance of TiO2 photocatalysts in the gas phase photooxidation of methanol at 25 °C, and the kinetics of intermediate surface…

Catalysis Science & Technology, 2020, 10 (16), pp.5618-5627. ⟨10.1039/D0CY00865F⟩. ⟨hal-03013711⟩

  • Article dans une revue

On the relationship between the basicity of a surface and its ability to catalyze transesterification in liquid and gas phases: the case of MgO

Damien Cornu, Hazar Guesmi, Guillaume Laugel, Jean-Marc Krafft, Hélène Lauron-Pernot

Gas or liquid phase transesterification reactions are used in the field of biomass valorization to transform some platform molecules into valuable products. Basic heterogeneous catalysts are often claimed for these applications but the role of basicity in the reaction mechanism depending on the…

Physical Chemistry Chemical Physics, 2015, 17, pp.14168-14176 ⟨10.1039/C5CP00217F⟩. ⟨hal-01153367⟩

  • Article dans une revue

Static and dynamic electronic characterization of organic monolayers grafted on a silicon surface

Olivier Pluchery, Y. Zhang, R. Benbalagh, L. Caillard, J. J. Gallet, F. Bournel, A.-F. Lamic-Humblot, M. Salmeron, Y. J. Chabal, F. Rochet

Organic layers chemically grafted on silicon offer excellent interfaces that may open up the way for new organic–inorganic hybrid nanoelectronic devices. However, technological achievements rely on the precise electronic characterization of such organic layers. We have prepared ordered grafted…

Physical Chemistry Chemical Physics, 2016, 18 (5), pp.3675-3684. ⟨10.1039/C5CP05943G⟩. ⟨hal-01262800⟩

  • Article dans une revue

Critical assessment of solvent effects on absorption and fluorescence of 3HF in acetonitrile in the QM/PCM framework: A synergic computational and experimental study

Daniele Loco, Stefano Protti, Benedetta Mennucci, Alberto Mezzetti

Absorption and fluorescence properties of 3-hydroxyflavone (3HF) dissolved in the polar aprotic solvent acetonitrile have been investigated by electronic spectroscopies, associated to mixed quantum mechanical (QM)/classical calculations, where the effect of the solvent is included at the classical…

Journal of Molecular Structure, 2019, 1182, pp.283-291. ⟨10.1016/j.molstruc.2018.12.085⟩. ⟨hal-02178337⟩

  • Article dans une revue

Cation Migration and Structural Deformations upon Dehydration of Nickel-Exchanged NaY Zeolite: A Combined Neutron Diffraction and Monte Carlo Study

Wilfried Louisfrema, Jean-Louis Paillaud, Florence Porcher, Elsa Perrin, Thomas Onfroy, Pascale Massiani, Anne Boutin, Benjamin Rotenberg

Combining neutron diffraction and classical molecular simulations, we describe the cation migration and associated structural changes taking place in a Ni-exchanged NaY faujasite zeolite upon stepwise dehydration from room temperature up to 400 °C. The cation redistribution between sites and the…

Journal of Physical Chemistry C, 2016, 120 (32), pp.18115-18125. ⟨10.1021/acs.jpcc.6b05657⟩. ⟨hal-01485629⟩

  • Article dans une revue

Co-grafting of antiadhesive and antimicrobial agents onto UV-micropatterned copper surfaces

Jessie Peyre, Vincent Humblot, Christophe Méthivier, Jean-Marc Berjeaud, Claire-Marie Pradier

Adhesion of proteins and bacteria was reduced by a factor close to one order of magnitude, and adhered bacteria were dramatically damaged on copper surfaces by grafting a PEG-modified PMMA-based (polymethyl methacrylate) copolymer together with an antimicrobial peptide. To obtain PEG and a peptide…

Colloids and Surfaces B: Biointerfaces, 2015, 136, pp.1120 - 1130. ⟨10.1016/j.colsurfb.2015.11.025⟩. ⟨hal-01564034⟩