Laboratoire de réactivité de surface

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Surface characterizations to investigate osteoarticular mesenchymal tissues : new insights to monitor the extracellular matrix remodeling at the supramolecular level, Caractérisations de surface pour étudier les tissus mésenchymateux ostéoarticulaires : nouvelles perspectives pour surveiller le remodelage de la matrice extracellulaire au niveau supramoléculaire

Ilhem Lilia Jaabar

A connective tissue is a cooperative set of differentiated cells entangled in an extracellular matrix (ECM). The latter, which is particularly abundant, is composed mainly of proteins, such as collagens, and a viscous gel made up of water and negatively charged polysaccharides: proteoglycans. All…, Un tissu conjonctif est un ensemble coopératif de cellules différenciées enchevêtrées dans une matrice extracellulaire (ECM). Cette dernière, particulièrement abondante, se compose principalement de protéines, telles que les collagènes, et d'un gel visqueux constitué d'eau et de…

Rhumatology and musculoskeletal system. Sorbonne Université, 2022. English. ⟨NNT : 2022SORUS145⟩. ⟨tel-04099571⟩

  • Article dans une revue

Potential of electrochemical techniques (macro and microelectrodes) in fronth flotation concentration of sulfide minerals, Potencialidade das técnicas eletroquímicas (macro e microeletrodos) na concentração por flotação de minerais sulfetados

Marina Martins Mennucci, Tatiana Mallet Machado, Vincent Vivier, Hercílio Gomes De Melo, Jean Vicente Ferrari

ABSTRACT The interactions between sulfide minerals and the chemistry of the exposure medium, from the grinding process to the flotation pulp, can be electrochemical and/or galvanic and influence the hydrophobicity of their surfaces, resulting in different levels of recovery. In the literature, most…, RESUMO As interações entre os minerais sulfetados e a química do meio de exposição, desde o processo de moagem dos minérios até a polpa de flotação, podem ser de caráter eletroquímico e/ou de natureza galvânica e influenciam a hidrofobicidade de suas superfícies, resultando em diferentes níveis de…

Revista Matéria, 2022, 27 (1), pp.e13151. ⟨10.1590/S1517-707620220001.1351⟩. ⟨hal-03720585⟩

  • Article dans une revue

Spatially Controlled Reduction and Growth of Silver in Hollow Gold Nanoshell Particles

Lu Zhang, Peng Chen, Alexis Loiseau, Dalil Brouri, Sandra Casale, Michèle Salmain, Souhir Boujday, Bo Liedberg

Spatially controlled reactions at the nanoscale have attracted increasing interest for fundamental chemistry and for the engineering of novel functional materials. Herein, we demonstrate that pH-triggered reduction of silver ions preferentially occurs at the inner walls of porous and citrate-capped…

Journal of Physical Chemistry C, 2019, 123 (16), pp.10614-10621. ⟨10.1021/acs.jpcc.8b11864⟩. ⟨hal-02284528⟩

  • Article dans une revue

Heterometallic and Hydrophobic Metal–Organic Frameworks as Durable Photocatalysts for Boosting Hydrogen Peroxide Production in a Two-Phase System

Xiaolang Chen, Yasutaka Kuwahara, Kohsuke Mori, Catherine Louis, Hiromi Yamashita

Reductive production of hydrogen peroxide (H2O2) from dioxygen (O2) coupled with the oxidative synthesis of value-added products using hydrophobic metal–organic frameworks (MOFs) is very important for energy production. Herein, a hydrophobic iron-doped zirconium-based MOF (OPA/Fe-Zr-MOF), in which…

ACS Applied Energy Materials, 2021, 4 (5), pp.4823-4830. ⟨10.1021/acsaem.1c00371⟩. ⟨hal-03995424⟩

  • Article dans une revue

Pd–Cu Alloy Nanoparticles Confined within Mesoporous Hollow Carbon Spheres for the Hydrogenation of CO 2 to Formate

Guoxiang Yang, Yasutaka Kuwahara, Kohsuke Mori, Catherine Louis, Hiromi Yamashita

It is intriguing yet challenging to synthesize high-performance heterogeneous catalysts for carbon dioxide (CO2) hydrogenation reactions. The excellent catalytic performance of heterogeneous catalysts has attracted widespread attention recently. Herein, a series of Pd–Cu alloy nanoparticles…

Journal of Physical Chemistry C, 2021, 125 (7), pp.3961-3971. ⟨10.1021/acs.jpcc.0c10962⟩. ⟨hal-03995570⟩

  • Article dans une revue

Properties, fabrication and applications of plasmonic semiconductor nanocrystals

Haibo Yin, Yasutaka Kuwahara, Kohsuke Mori, Catherine Louis, Hiromi Yamashita

We highlight three widely explored oxide-based plasmonic materials, including H x MoO 3−y , H x WO 3−y , and Mo x W 1−x O 3−y , and their applications in catalysis.

Catalysis Science & Technology, 2020, 10 (13), pp.4141-4163. ⟨10.1039/c9cy02511a⟩. ⟨hal-03995338⟩

  • Article dans une revue

Detection of hydrogen peroxide using dioxazaborocanes: elucidation of the sensing mechanism at the molecular level by NMR and XPS measurements

Thomas Caron, Pascal Palmas, Céline Frénois, Christophe Méthivier, Eric Pasquinet, Claire-Marie Pradier, Françoise Serein-Spirau, Lionel Hairault, Pierre Montméat

A fluorescent dioxazaborocane was synthesised and characterized, in order to study its turn-off sensing process for hydrogen peroxide detection. The exposure of the dioxazaborocane to diluted vapours of H2O2 led to a strong non reversible quenching of the fluorescence. Both NMR and XPS analyses…

New Journal of Chemistry, 2020, 44 (10), pp.4114-4121. ⟨10.1039/d0nj00038h⟩. ⟨hal-02538454⟩

  • Article dans une revue

Synthesis of RNA nucleotides in plausible prebiotic conditions from ab initio computer simulations

Andrea Pérez-Villa, Antonino Marco Saitta, Thomas Georgelin, Jean-François Lambert, François Guyot, Marie-Christine Maurel, Fabio Pietrucci

Understanding the mechanism of spontaneous formation of ribonucleotides under realistic prebiotic conditions is a key open issue of origins-of-life research. In cells, de novo and salvage nucleotide enzymatic synthesis combines 5-phospho-α-d-ribose-1-diphosphate (α-PRPP) and nucleobases.…

Journal of Physical Chemistry Letters, 2018, 9 (17), pp.4981-4987. ⟨10.1021/acs.jpclett.8b02077⟩. ⟨hal-01895482⟩

  • Article dans une revue

Life on Minerals: Binding Behaviors of Oligonucleotides on Zirconium Silicate and its Inhibitory Activity for the Self-Cleavage of Hammerhead Ribozyme

Kunio Kawamura, Jean-François Lambert, Louis Ter-Ovanessian, Jacques Vergne, Guy Hervé, Marie-Christine Maurel

The role of minerals in the chemical evolution of RNA molecules is an important issue when considering the early stage of the Hadean Earth. In particular, the interaction between functional ribozymes and ancient minerals under simulated primitive conditions is a recent research focus. We are…

Life, 2022, The Origin and Early Evolution of Life: Prebiotic Systems Chemistry Perspective, 12 (11), pp.1689. ⟨10.3390/life12111689⟩. ⟨hal-03828234⟩

  • Article dans une revue

Influence of the nature and environment of manganese in Mn-BEA zeolites on NO conversion in selective catalytic reduction with ammonia

Rafal Baran, L. Valentin, J.-M. Krafft, T. Grzybek, P. Glatzel, Stanislaw Dzwigaj

Manganese-containing BEA zeolites, MnxSiBEA (x = 1–4 wt %) and Mn(I.E.)AlBEA, were prepared by a two-step postsynthesis method and a conventional wet ion-exchange, respectively, and applied as catalysts in the selective catalytic reduction of NO with ammonia (NH3-SCR). The physicochemical analysis…

Physical Chemistry Chemical Physics, 2017, 176 (1), pp.229-233. ⟨10.1039/C7CP02096A⟩. ⟨hal-01527245⟩