• Article dans une revue

A Rotaxane Scaffold Bearing Multiple Redox Centers: Synthesis, Surface Modification and Electrochemical Properties

Marie Steffenhagen, Alina Latus, Thi Minh Nguyet Trinh, Iwona Nierengarten, Ivan T. Lucas, Suzanne Joiret, Jessem Landoulsi, Béatrice Delavaux-Nicot, Jean-François Nierengarten, Emmanuel Maisonhaute

A rotaxane scaffold incorporating two dithiolane anchoring units for the modification of gold surfaces has been functionalized with multiple copies of a redox unit, namely ferrocene. Surface modification has been first assessed at the single molecule level by atomic force microscopy (AFM) and…

Chemistry - A European Journal, 2018, 24 (7), pp.1701-1708. ⟨10.1002/chem.201705245⟩. ⟨hal-01722802⟩

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Biosensing Extracellular Vesicle Subpopulations in Neurodegenerative Disease Conditions

Yacine Mazouzi, Fadoua Sallem, Francesca Farina, Alexis Loiseau, Natayme Rocha Tartaglia, Morgane Fontaine, Atul Parikh, Michèle Salmain, Christian Neri, Souhir Boujday

Extracellular vesicles (EVs) are secreted nanoparticles that are involved in intercellular communication and that modulate a wide range of biological processes in normal and disease conditions. However, EVs are highly heterogeneous in terms of origin in the cell, size, and density. As a result,…

ACS Sensors, 2022, 7 (6), pp.1657-1665. ⟨10.1021/acssensors.1c02658⟩. ⟨hal-03791750⟩

• Article dans une revue

Relationship between soil composition and retention capacity of terbumeton onto chalky soils.

A. El Arfaouia, Eric Marceau, Lorenzo Stievano, S. Sayen, Emmanuel Guillon, M. Couderchet

Environmental Chemistry, 2009, 6 (3), pp.245-252. ⟨10.1071/EN08105⟩. ⟨hal-00576006⟩

• Article dans une revue

Carbon black composites—supports of HDS catalysts

P. Gheek, S. Suppan, J. Trawczynski, A. Hynaux, Celine Sayag, G. Djéga-Mariadassou

HDS activity of sulfided Mo (W) catalysts supported on carbon black composites (CBC) is affected by kind of functional groups present on the CBC surface. Oxidation of CBC with (NH4)2S2O8 produce functionalities with the highest acid strength and corresponding catalyst exhibits the highest HDS…

Catalysis Today, 2006, 119, pp.19-22. ⟨10.1016/j.cattod.2006.08.026⟩. ⟨hal-00128078⟩

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Kinetic study of the deep hydrodesulfurization of dibenzothiophene over molybdenum carbide supported on a carbon black composite: Existence of two types of active sites

A. Hynaux, Celine Sayag, S. Suppan, J. Trawczynski, M. H. Lewandowski, A. Szymanska-Kolasa, G. Djéga-Mariadassou

Hydrodesulfurization (HDS) is part of the hydrotreating process, which is an ensemble of several reactions (HDN, HDO, HDS, etc.) taking place simultaneously at the industrial scale. Only sulfur is currently submitted to drastic Europeans specifications and conventional commercial catalysts cannot…

Catalysis Today, 2006, 119, pp.3-6. ⟨10.1016/j.cattod.2006.08.053⟩. ⟨hal-00128095⟩

• Article dans une revue

Sorption of Cu(II) onto vineyard soils: macroscopic and spectroscopic investigations

Eric Marceau, Lorenzo Stievano

The sorption of Cu on five vineyard soils was examined via macroscopic and spectroscopic investigations. The composition of the soils was previously determined using X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). X-ray absorption spectroscopy (XAS) was employed to determine the…

Journal of Colloid and Interface Science, 2007, 307, pp.40-49. ⟨10.1016/j.jcis.2006.10.080⟩. ⟨hal-00133593⟩

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Adsorption of L-Lysine on Cu(110): A RAIRS study from UHV to the liquid phase

Vincent Humblot, Christophe Méthivier, Claire-Marie Pradier

Adsorption of L-Lysine on a Cu(110) surface has been investigated under UHV condition from sublimation of a crystalline phase. The adsorption was characterised by Fourier Transform Reflection Absorption Infrared Spectroscopy (FT-RAIRS) during exposure and Auger Electron Spectroscopy (AES). At room…

Langmuir, 2006, 22, pp.3089-3096. ⟨10.1021/La0533866⟩. ⟨hal-00022056⟩

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1H MAS NMR study of the coordination of hydroxyl groups generated upon adsorption of H2O and CD3OH on clean MgO surfaces

Céline Chizallet, Guylène Costentin, Hélène Lauron-Pernot, Jocelyne Maquet, Michel Che

The coordination of OH groups on MgO has been characterized by 1H MAS NMR after appropriate pre-treatment conditions to obtain surfaces free from carbonates and with a controlled degree of hydroxylation. On MgO-sol–gel sample treated at 1023 K under flowing nitrogen, hydroxylated with water and…

Applied Catalysis A : General, 2006, 307, pp.239-244. ⟨10.1016/j.apcata.2006.03.056⟩. ⟨hal-00112138⟩

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Thermodynamic brønsted basicity of clean MgO surfaces determined by their deprotonation ability: Role of Mg2+–O2 pairs

Céline Chizallet, Marie Laurence Bailly, Guylène Costentin, Hélène Lauron-Pernot, Jean Marc Krafft, Philippe Bazin, Jacques Saussey, Michel Che

The deprotonation ability of clean (i.e., carbonate- and hydroxyl-free) MgO surfaces of various morphologies towards protic molecules, such as propyne and methanol, is evaluated by following the adsorption modes and amount of dissociated species by FTIR. Photoluminescence is used to identify the…

Catalysis Today, 2006, 116, pp.196-205. ⟨10.1016/j.cattod.2006.01.030⟩. ⟨hal-00112162⟩

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Discrimination of Surface and Bulk Structure of Crystalline Hydroxyapatite Nanoparticles by NMR

Manel Ben Osman, Sarah Diallo-Garcia, Virginie Herledan, Dalil Brouri, Tetsuya Yoshioka, Jun Kubo, Yannick Millot, Guylène Costentin

Solid state 1H and 31P NMR spectroscopy was used to characterize well-crystallized hydroxyapatite samples of different stoichiometry prepared by a precipitation route. The aim of the paper was to investigate the bulk structural features of samples with different stoichiometry and to discriminate…

Journal of Physical Chemistry C, 2015, 119 (40), pp.23008-23020. ⟨10.1021/acs.jpcc.5b08732⟩. ⟨hal-01212297⟩