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  • Article dans une revue

Non-Hydroxyl Radical Species Production during Dark Air Oxidation of Alluvial Soils

Elora Bourbon, Frédéric Averseng, Pierre Le Pape, Thierry Allard, Fulvia Baratelli, Fabrice Alliot, Alexandre Gélabert, Valentine Rollot, Elodie Guigon, Jessica Brest, Sylvie Nélieu, Guillaume Morin

Natural environments subjected to hydrologically-driven redox fluctuations are regarded as propitious to contaminant degradation since they favor cyclic oxygenation of Fe(II)-minerals that produces oxidizing reactive species, such as the hydroxyl radical, OH • . However, the identity of these…

ACS Earth and Space Chemistry, 2024, 8 (9), pp.1757-1770. ⟨10.1021/acsearthspacechem.4c00113⟩. ⟨hal-04744483⟩

  • Article dans une revue

Impact of Collagen Crosslinking on Dislocated Human Shoulder Capsules—Effect on Structural and Mechanical Properties

Pauline Cornette, Ilhem Jaabar, Vincent Dupres, Jean-David Werthel, Francis Berenbaum, Xavier Houard, Jessem Landoulsi, Geoffroy Nourissat

Classical treatments of shoulder instability are associated with recurrence. To determine whether the modification of the capsule properties may be an alternative procedure, the effect of crosslinking treatment on the structure and mechanical properties of diseased human shoulder capsules was…

International Journal of Molecular Sciences, 2022, 23 (4), pp.2297. ⟨10.3390/ijms23042297⟩. ⟨hal-03617260⟩

  • Article dans une revue

Covalent Grafting of Organic–Inorganic Polyoxometalates Hybrids onto Mesoporous SBA-15: A Key Step for New Anchored Homogeneous Catalysts

Richard Villanneau, Asma Marzouk, Yan Wang, Aicha Ben Djamaa, Guillaume Laugel, Anna Proust, Franck Launay

Covalent grafting of the polyoxometalate (POM) hybrid [AsW9O33{P(O)(CH2CH2CO2H)}2]5- on mesoporous NH2-functionalized SBA-15 is the first example of anchored vacant POMs in which nucleophilic oxygen atoms are still available after incorporation into the supports. Such systems are interesting…

Inorganic Chemistry, 2013, 52 (6), pp.2958 - 2965. ⟨10.1021/ic302374v⟩. ⟨hal-01563887⟩

  • Article dans une revue

Halide-free CO 2 cycloaddition onto styrene oxide catalysed by first row transition-metal derivatives of polyoxotungstates

Jingjing Ren, Franck Launay, Richard Villanneau, Anna Proust

Quaternary ammonium salts of metal derivatives of polyoxometalates [XW11O39M(H2O)]n- (X = P, Si; M = Cr, Mn, Co, Ni, Zn) were successfully tested instead of quaternary ammonium halides as catalysts in the cycloaddition of CO2 to styrene oxide. Remarkably, they gave very satisfactory yields of…

Chemical Communications, 2024, ⟨10.1039/D4CC00522H⟩. ⟨hal-04545491⟩

  • Article dans une revue

Advantages of Covalent Immobilization of Metal‐Salophen on Amino‐Functionalized Mesoporous Silica in Terms of Recycling and Catalytic Activity for CO 2 Cycloaddition onto Epoxides

Matthieu Balas, Sébastien Beaudoin, Anna Proust, Franck Launay, Richard Villanneau

NiII and MnIII Schiff base complexes (Salophen-Ni and Salophen-MnCl) bearing a pending carboxylic group were prepared and characterized. Both complexes were grafted onto a mesoporous amino-functionalized SBA-15 silica, by formation of an amide function between the propylamine groups of the support…

European Journal of Inorganic Chemistry, 2021, 2021 (16), pp.1581-1591. ⟨10.1002/ejic.202100150⟩. ⟨hal-03485785⟩

  • Article dans une revue

Multifunctional Supramolecular Gels with Strong Mechanical Properties Formed by Self-Assembly of Polyoxometalate-Based Coordination Polymers

Lorenzo Casimiro, Florence Volatron, Grégoire Boivin, Benjamin Abécassis, Sandra Alves, Dalil Brouri, David Montero, Jean-Michel Guigner, Lise-Marie Chamoreau, Geoffrey Gontard, David Portehault, Yanling Li, Anna Proust, Rodrigue Lescouëzec, Guylaine Ducouret, Albert Solé-Daura, Patrick Davidson, Théo Merland, Guillaume Izzet

<div><p>Metallogels built in a bottom-up approach by metal coordination and supramolecular interactions have important potential for the elaboration of smart materials. In this context, we present here the formation of supramolecular coordination polymers driven by the complexation of…

JACS Au, 2024, ⟨10.1021/jacsau.4c00981⟩. ⟨hal-04823350⟩

  • Article dans une revue

Baicalein-modified hydroxyapatite nanoparticles and coatings with antibacterial and antioxidant properties

Estelle Palierse, Christophe Hélary, Jean-Marc Krafft, Isabelle Génois, Sylvie Masse, Guillaume Laurent, Maria I Alvarez Echazu, Mohamed Selmane, Sandra Casale, Laetitia Valentin, Antoine Miche, Ben C.L. Chan, Clara B.S. Lau, Margaret Ip, Martin F Desimone, Thibaud Coradin, Claude Jolivalt

Aseptic loosening and bacterial infections are the two main causes of failure for metallic implants used for joint replacement. A coating that is both bioactive and possesses antimicrobial properties may address such shortcomings and improve the performance of the implant. We have sought to study…

Materials Science and Engineering: C, 2021, 118, pp.111537, 1-13. ⟨10.1016/j.msec.2020.111537⟩. ⟨hal-02946075⟩

  • Article dans une revue

Clicked BODIPY‐Fullerene‐Peptide Assemblies: Studies of Electron Transfer Processes in Self‐Assembled Monolayers on Gold Surfaces

Jad Rabah, Houssein Nasrallah, Karen Wright, Isabelle Gérard, Hélène Fensterbank, Thi Tuyet Van Bui, Jérôme Marrot, Thu-Trang Tran, Anam Fatima, Minh-Huong Ha-Thi, Rachel Méallet, Gotard Burdzinski, Gilles Clavier, Souhir Boujday, Hubert Cachet, Catherine Debiemme-Chouvy, Emmanuel Maisonhaute, Anne Vallée, Emmanuel Allard

Two BODIPY‐C60‐peptide assemblies were synthesized by CuAAC reactions of BODIPY‐C60 dyads and a helical peptide functionalized with a terminal alkyne group and an azide group, respectively. The helical peptide within these assemblies was functionalized at its other end by a disulfide group,…

ChemPlusChem, 2024, 89, pp.e202300717. ⟨10.1002/cplu.202300717⟩. ⟨hal-04500746⟩

  • Article dans une revue

A fullerene helical peptide: synthesis, characterization and formation of self-assembled monolayers on gold surfaces

Houssein Nasrallah, Jad Rabah, Van Bui-Thi-Tuyet, Krystyna Baczko, Hélène Fensterbank, Flavien Bourdreux, Anne-Marie Goncalves, Valérie Declerck, Souhir Boujday, Vincent Humblot, Karen Wright, Anne Vallée, Emmanuel Allard

The synthesis of a C60-peptide using "clickable" fullerene and peptide derivatives is described. The peptide is composed of a repeating sequence of -aminoisobutyric acid (Aib) and two L-Alanine (Ala) residues, promoting the formation of a helical conformation, which has been confirmed by…

New Journal of Chemistry, 2018, 42 (24), pp.19423-19432. ⟨10.1039/c8nj04599b⟩. ⟨hal-02348881⟩

  • Article dans une revue

Low temperature dry methane reforming over Ce, Zr and CeZr promoted Ni–Mg–Al hydrotalcite-derived catalysts

Radosław Dębek, Maria Elena Galvez, Franck Launay, Monika Motak, Teresa Grzybek, Patrick da Costa

Hydrotalcite derived catalysts promoted with Ce, Zr and CeZr showed considerable activity in dry methane reforming (DMR) at low temperatures (550°C). Direct methane decomposition resulting in the extensive formation of fishbone-type carbon nanofibers was substantially inhibited in the presence of…

International Journal of Hydrogen Energy, 2016, 41 (27), pp.11616-11623. ⟨10.1016/j.ijhydene.2016.02.074⟩. ⟨hal-01289149⟩