• Article dans une revue

Contribution to the understanding of the formation mechanism of bimodal mesoporous MCM41-type silica with large defect cavities

Claudia Bernal, Monica Mesa, Maguy Jaber, Jean-Louis Guth, Ligia Sierra

The formation mechanism of large defect cavities (∅ 11-23 nm) beside the MCM41 mesopores (∅ ∼ 2.3 nm), was studied from mixtures of sodium silicate, cetyl trimethyl ammonium bromide (CTAB) and ethyl acetate (EtAc) with the molar composition 1 SiO2; 1 Na2O; x CTAB; y EtAc: 237 H2O (with x = 0.33 or…

Microporous and Mesoporous Materials, 2011, 153, pp.217-226. ⟨10.1016/j.micromeso.2011.12.049⟩. ⟨hal-00688611⟩

• Article dans une revue

The impact of the hydrodechlorination process on the physicochemical properties of bimetallic Ag-CuBeta zeolite catalysts

A. Śrębowata, Izabela I. Kamińska, S. Casale, D. Brouri, C. Calers, Stanislaw Dzwigaj

Beta zeolites with two Si/Al ratios of 17 and 1300 were used for synthesis of Ag2.0Cu2.0HAlBeta and Ag2.0Cu2.0SiBeta zeolites by conventional wet impregnation and two-step postsynthesis methods, respectively. The calcination of Ag2.0Cu2.0HAlBeta and Ag2.0Cu2.0SiBeta at 773 K for 3 h in air led to…

Microporous and Mesoporous Materials, 2017, 243, pp.56-64. ⟨10.1016/j.micromeso.2016.12.022⟩. ⟨hal-01469231⟩

• Article dans une revue

Bimetallic Phosphide (Ni,Cu) 2 P Nanoparticles by Inward Phosphorus Migration and Outward Copper Migration

Anh-Minh Nguyen, Mounib Bahri, Sébastien Dreyfuss, Simona Moldovan, Antoine Miche, Christophe Méthivier, Ovidiu Ersen, Nicolas Mézailles, Sophie Carenco

Bimetallic phosphide nanoparticles are drawing a great interest as a family of nanomaterials. Controlling their fine features such as surface composition, core crystal structure and overall composition is a key to further application. Copper and nickel are particularly interesting first-raw metals…

Chemistry of Materials, 2019, 31 (16), pp.6124-6134. ⟨10.1021/acs.chemmater.9b01505⟩. ⟨hal-02273119⟩

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Sum-frequency generation spectroscopy applied to model biosensors systems

L. Dreesen, Y. Sartenaer, Humbert Christophe, A.A. Mani, J.-J. Lemaire, C. Methivier, C.-M. Pradier, P.A. Thiry, A. Peremans

Thin Solid Films, 2004, 464-465, pp.373-378. ⟨10.1016/j.tsf.2004.06.108⟩. ⟨hal-02112516⟩

• Article dans une revue

Probing Ligand-Protein Recognition with Sum-Frequency Generation Spectroscopy: The Avidin-Biocytin Case

Laurent Dreesen, Yannick Sartenaer, Humbert Christophe, Alaa Mani, Christophe Methivier, Claire-Marie Pradier, Paul Thiry, André Peremans

ChemPhysChem, 2004, 5 (11), pp.1719-1725. ⟨10.1002/cphc.200400213⟩. ⟨hal-02112526⟩

• Thèse

Emergence de biopolymères de complexite contrôlée dans les scénarios d'origine de la vie, Emergence of biopolymers with controlled complexity in an origins of life scenario

Lise Bedoin

La matière vivante se caractérise par la présence de biopolymères non aléatoires dont la fonction biologique dépend de la séquence en monomères. Pour comprendre les origines de la vie, il est essentiel d’expliquer l’émergence de polymères non aléatoires dans un monde où les cellules vivantes n’…, Living matter is characterized by the presence of non-random biopolymers whose biological function depends on the monomer sequence. Thus, a major challenge for the elucidation of the Origins of Life lies in understanding how non-random polypeptides were formed and selected among all of the possible…

Polymères. Sorbonne Université, 2021. Français. ⟨NNT : 2021SORUS229⟩. ⟨tel-03475214⟩

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Structure–Activity Relationship in Manganese Perovskite Oxide Nanocrystals from Molten Salts for Efficient Oxygen Reduction Reaction Electrocatalysis

Francisco Gonell, Carlos M Sánchez-Sánchez, Vincent Vivier, Christophe Méthivier, Christel Laberty-Robert, David Portehault

We report a synthesis pathway in molten salts toward ligand-free nanoparticles of the layered perovskite La0.5Sr1.5MnO4 (l-LSMO) and of the pseudocubic perovskite La0.7Sr0.3MnO3 (pc-LSMO). These particles are readily implemented as oxygen reduction reaction (ORR) electrocatalysts in alkaline…

Chemistry of Materials, 2020, 32 (10), pp.4241-4247. ⟨10.1021/acs.chemmater.0c00681⟩. ⟨hal-02767098⟩

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Supramolecular Self‐Assembly and Organization of Collagen at Solid/Liquid Interface: Effect of Spheroid‐ and Rod‐Shaped TiO 2 Nanocrystals

Mathieu Beauvais, Thomas Degabriel, Nesrine Aissaoui, Vincent Dupres, Elodie Colaço, Karim El Kirat, Rute F Domingos, Dalil Brouri, Claire‐marie Pradier, Jolanda Spadavecchia, Jessem Landoulsi

The adsorption behavior of collagen on solid surfaces is a process that determines the role of this protein to mediate cell–material interaction. Herein, the mechanism of self‐assembly and organization of collagen on a model substrate is investigated in the presence of TiO2 nanoparticles. In…

Advanced Materials Interfaces, 2019, 6 (14), pp.1900195. ⟨10.1002/admi.201900195⟩. ⟨hal-02391527⟩

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Microwave frequency behavior of the EPR copper(II) ion pairs spectrum formed in the CuCe oxide

Antoine Aboukais, Abdelrhani Bennani, Cossi Faustin Aissi, Michel Guelton, Jacques C. Vedrine

Chemistry of Materials, 1992, 4, pp.977-979. ⟨10.1021/cm00023a008⟩. ⟨hal-00006212⟩

• Thèse

Prebiotic Organization of Biomolecules on Mineral Surfaces, Organisation prébiotique de biomolécules sur des surfaces minérales

Hagop Abadian

This thesis reports on the adsorption of two amino acids (AA) with different properties, Leucine and Glutamic acid, on the amorphous silica surface. It exemplifies a general approach to hybrid systems that combines experimental information and molecular modeling in order to characterize at the…, Cette thèse porte sur l'adsorption de deux acides aminés aux propriétés différentes, la leucine et l'acide glutamique, sur la surface de la silice amorphe. Une combinaison d'informations expérimentales et de modélisation moléculaire a été entreprise afin de caractériser au niveau…

Material chemistry. Sorbonne Université, 2021. English. ⟨NNT : 2021SORUS035⟩. ⟨tel-03419620⟩