• Article dans une revue

Increasing the efficiency of magnetic heterogeneous Fenton catalysts with a simple halogen visible lamp

Nassira Ferroudj, Delphine Talbot, Aude Michel, Anne Davidson, Sébastien Abramson

The effect of a simple visible halogen lamp was studied in the Fenton-type oxidation of three model aqueous pollutants differing in their structure and electrostatic charge, methylorange (MO), methylene blue (MB) and paranitrophenol (PNP), using maghemite nanoparticles (γ-Fe 2 O 3 NP), or maghemite…

Journal of Photochemistry and Photobiology A: Chemistry, 2017, 338, pp.85-95. ⟨10.1016/j.jphotochem.2017.01.029⟩. ⟨hal-01525893⟩

• Article dans une revue

Investigating the Mukaiyama-type epoxidation reaction of alkenes with Cr(III) salophen catalysts: A confrontation between experiments and DFT calculations

Arnaud Marvilliers, Jean-Baptiste Harlé, Franck Launay, Sébastien Blanchard, Anne Gauvin-Bialecki, Hélène Gérard, Richard Villanneau

This study aimed at the complete elucidation of the mechanism of the Mukaiyama-type alkene epoxidation reaction using the [(salophen)CrIIICl] precatalyst, by combining spectroscopic (UV–visible and EPR) studies, catalytic reactivity and quantum chemical modeling. These studies performed in parallel…

Journal of Catalysis, 2024, 434, pp.115526. ⟨10.1016/j.jcat.2024.115526⟩. ⟨hal-04579211⟩

• Article dans une revue

Acidic Osteoid Templates the Plywood Structure of Bone Tissue

Marc Robin, Chakib Djediat, Arnaud Bardouil, Niki Baccile, Camille Chareyron, Ivo Zizak, Peter Fratzl, Mohamed Selmane, Bernard Haye, Isabelle Genois, Jean‐marc Krafft, Guylène Costentin, Thierry Azaïs, Franck Artzner, Marie‐madeleine Giraud-Guille, Paul Zaslansky, Nadine Nassif

Bone is created by osteoblasts that secrete osteoid after which an ordered texture emerges, followed by mineralization. Plywood geometries are a hallmark of many trabecular and cortical bones, yet the origin of this texturing in vivo has never been shown. Nevertheless, extensive in vitro work…

Advanced Science, 2023, pp.2304454. ⟨10.1002/advs.202304454⟩. ⟨hal-04384750⟩

• Article dans une revue

Effect of pH on the incorporation of acrylic acid units in the core of polymer nanoparticles prepared by PISA and on their morphology

Clément Debrie, Noémie Coudert, Jean-Michel Guigner, Fanny Coumes, Clément Guibert, Simon Harrisson, François Stoffelbach, Olivier Colombani, Jutta Rieger

Polymerization-induced self-assembly (PISA) is a polymerization process in which amphiphilic block copolymers are simultaneously synthesized and self-assembled in a selective solvent, leading to nanoparticles of different morphologies. Copolymerization has been reported as a means to tune…

Polymer Chemistry, 2024, 15 (24), pp.2462-2475. ⟨10.1039/D4PY00373J⟩. ⟨hal-04649351⟩

• Article dans une revue

Design and Analytical Performances of a Diclofenac Biosensor for Water Resources Monitoring

Yacine Mazouzi, Antoine Miche, Alexis Loiseau, Bruno Beito, Christophe Méthivier, Dietmar Knopp, Michèle Salmain, Souhir Boujday

Because the broadly consumed pain killer diclofenac (DCF) is a recognized pollutant, monitoring of its concentration is routinely performed in surface waters. As a valuable alternative to chromatographic and immunochemical assays, we developed a piezoelectric immunosensor to quantify DCF, first in…

ACS Sensors, 2021, 6 (9), pp.3485-3493. ⟨10.1021/acssensors.1c01607⟩. ⟨hal-03351021⟩

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Enhancing the magnetic anisotropy of maghemite nanoparticles via the surface coordination of molecular complexes

Yoann Prado, Niéli Daffé, Aude Michel, Thomas Georgelin, Nader Yaacoub, Jean-Marc Greneche, Fadi Choueikani, Edwige Otero, Philippe Ohresser, Marie-Anne Arrio, C. Cartier Dit Moulin, Ph. Sainctavit, Benoit Fleury, Vincent Dupuis, Laurent Lisnard, Jérôme Fresnais

Superparamagnetic nanoparticles are promising objects for data storage or medical applications. In the smallest—and more attractive—systems, the properties are governed by the magnetic anisotropy. Here we report a molecule-based synthetic strategy to enhance this anisotropy in sub-10-nm…

Nature Communications, 2015, 6, pp.10139. ⟨10.1038/ncomms10139⟩. ⟨hal-01390543⟩

• Article dans une revue

Evolution Mechanisms of T91 Steel in Subcritical Conditions and Role of an Internal Oxidation Zone

Seifallah Fetni, David Montero, Chokri Boubahri, Dalil Brouri, Jalel Briki

Corrosion of a T91 steel tube, used in subcritical conditions in an oil power plant for 157,000 h, was characterized mainly through SEM, TEM, EDX and DRX analyses. Severe oxidation and carburization took place in both the outer (boiler) and inner (steam) wall sides. The nature and morphology of the…

Oxidation of Metals, 2018, 90 (3-4), pp.291-315. ⟨10.1007/s11085-018-9837-6⟩. ⟨hal-04020418⟩

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Dual Thermo- and pH-Responsive N -Cyanomethylacrylamide-Based Nano-Objects Prepared by RAFT-Mediated Aqueous Polymerization-Induced Self-Assembly

Nicolas Audureau, Fanny Coumes, Jean-Michel Guigner, Clément Guibert, François Stoffelbach, Jutta Rieger

We report the straightforward synthesis of dual stimuli-responsive nano-objects using a RAFT-mediated polymerization-induced self-assembly (PISA) process in water. The key to complex and tunable responsiveness was the copolymerization of N-cyanomethylacrylamide, providing UCST-type polymers, with a…

Macromolecules, 2022, 55 (24), pp.10993-11005. ⟨10.1021/acs.macromol.2c01953⟩. ⟨hal-03988200⟩

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Correction to “Nanosized Layered TOT Magnesium Silicates: Equilibrium Morphologies and Surface Speciation, a Computational and Experimental Study”

Hervé Toulhoat, Longfei Lin, Dalil Brouri, Jean-Marc Krafft, Yannick Millot, Guillaume Laugel, Hélène Lauron-Pernot

Journal of Physical Chemistry C, 2020, 124 (2), pp.1761-1764. ⟨10.1021/acs.jpcc.9b11604⟩. ⟨hal-04031145⟩

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Transition metal borides of Ni-B (Co-B) as alternative non-precious catalytic materials: Advances, potentials, and challenges. Short review

Marek Lewandowski, Maria Bartoszewicz, Karolina Jaroszewska, Gérald Djéga-Mariadassou

This review gives a brief presentation of the types, structure, synthesis, and application of amorphous transition metal borides (Mt-B) in particular the bulk or supported nickel and cobalt borides (NiB and CoB). Mt-B materials are amorphous metal-metalloid alloys and constitute an important group…

Journal of Industrial and Engineering Chemistry, 2022, 116, pp.75-98. ⟨10.1016/j.jiec.2022.09.031⟩. ⟨hal-04030854⟩