Laboratoire de réactivité de surface

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  • Article dans une revue

Potent antimicrobial peptides against Legionella pneumophila and its environmental host, Acanthamoeba castellanii.

Margot Schlusselhuber, Vincent Humblot, Sandra Casale, Christophe Méthivier, Julien Verdon, Matthias Leippe, Jean-Marc Berjeaud

Legionella pneumophila, the major causative agent of Legionnaires' disease, is most often found in the environment in close association with free-living amoebae, leading to persistence, spread, biocide resistance, and elevated virulence of the bacterium. In the present study, we evaluated the…

Applied Microbiology and Biotechnology, 2015, 99 (11), pp.4879-91. ⟨10.1007/s00253-015-6381-z⟩. ⟨hal-01427428⟩

  • Article dans une revue

Crystalline Molybdenum Oxide Thin-Films for Application as Interfacial Layers in Optoelectronic Devices

André Luis Fernandes Cauduro, Roberto dos Reis, Gong Chen, Andreas K. Schmid, Christophe Méthivier, Horst-Günter Rubahn, Léo Bossard-Giannesini, Hervé Cruguel, Nadine Witkowski, Morten Madsen

The ability to control the interfacial properties in metal-oxide thin films through surface defect engineering is vital to fine tune their optoelectronic properties and thus their integration in novel optoelectronic devices. This is exemplified in photovoltaic devices based on organic, inorganic or…

ACS Applied Materials & Interfaces, 2017, 9 (8), pp.7717-7724. ⟨10.1021/acsami.6b14228⟩. ⟨hal-01464322⟩

  • Article dans une revue

NCI : looking at solute/solvent interactions

Robin Chaudret, C. Narth, Raphaël Lugo, Pascal Mougin, Jean-Charles de Hemptinne, Hervé Toulhoat, J. Contreras-García

Understanding solvation interactions is a key problem for many industrial fields: from pharmaceutical to material sciences. From a quantum mechanical viewpoint, two main difficulties arise: firstly, solvation takes place through weak interactions (hydrogen bonds, van der Waals interactions), which…

Electronic Structure, 2021, 3 (3), pp.034006. ⟨10.1088/2516-1075/ac1a62⟩. ⟨hal-03375488⟩

  • Article dans une revue

Chemical nature and thermal decomposition behavior of tartaric acid multilayers on rutile TiO 2 (110)

Elisa Meriggio, Rémi Lazzari, Christophe Méthivier, Pascal David, Stéphane Chenot, Xavier Carrier, Gregory Cabailh, Vincent Humblot

R,R-tartaric acid (RR-TA) thermal stability and decomposition on the rutile TiO2(110) surface was investigated by temperature programmed desorption. The authors show that a majority of RR-TA molecules are desorbed intact from multilayers at around 340 K, while they decompose from the first…

Journal of Vacuum Science & Technology B Microelectronics and Nanometer Structures, 2019, 37 (5), pp.051803. ⟨10.1116/1.5100957⟩. ⟨hal-02340226⟩

  • Thèse

New routes of preparation of active and stable mesoporous Ni-alumina based catalysts for methane dry reforming and CO2 methanation, Nouvelles voies de préparation de catalyseurs actifs et stables à base de Ni-alumine mésoporeuse pour le reformage à sec du méthane et la méthanation du CO2

Leila Karam

Dry reforming of methane (DRM) is a process that converts CH4 and CO2 gases into syngas, a gaseous mixture of H2 and CO. Ni based catalysts proved to be suitable for the reaction due to their good activity, wider availability and lower cost than noble-based materials. However, these catalysts are…, Le reformage à sec du méthane (DRM) est un processus qui convertit simultanément CH4 et CO2 en un mélange gazeux de H2 et de CO appelé syngas. Les catalyseurs à base de Ni sont particulièrement prometteurs mais ils ne sont pas stables en raison du frittage du Ni et du dépôt de coke. Dans cette…

Catalysis. Sorbonne Université; Université de Balamand (Tripoli, Liban), 2019. English. ⟨NNT : 2019SORUS163⟩. ⟨tel-03141292⟩

  • Article dans une revue

Incorporation of Mo into the Vacant T-Atom Sites of the Framework of BEA Zeolite as Mononuclear Mo Evidenced by XRD and FTIR, NMR, EPR, and DR UV-Vis Spectroscopies

Rafal Baran, Frédéric Averseng, Yannick Millot, Thomas Onfroy, Sandra Casale, Stanislaw Dzwigaj

A MoSiBEA zeolite has been prepared by a two-step postsynthesis procedure that consists of first creating the vacant T-atom sites with associated silanol groups by treatment of TEABEA zeolite with nitric acid and then incorporating Mo ions into the vacant T-atom sites by solid-state ion exchange at…

Journal of Physical Chemistry C, 2014, 118, pp.4143-4150. ⟨10.1021/jp410016g⟩. ⟨hal-00983714⟩

  • Article dans une revue

Polyoxometalate nanostructured gold surfaces for sensitive biosensing of benzo[a]pyrene

Dimitri Mercier, Maroua Ben Haddada, Maria Huebner, Dietmar Knopp, Reinhard Niessner, Michèle Salmain, Anna Proust, Souhir Boujday

We report the design of a polyoxometalate-nanostructured immunosensor for benzo[a]pyrene (B[a]P) detection. The organic–inorganic hybrid polyoxometalate (POM) (NBu4)3[PW11O39{(SiC6H4NH2)2O}] carrying two amine functions was covalently attached to a functionalized gold substrate to achieve a…

Sensors and Actuators B: Chemical, 2015, 209, pp.770-774. ⟨10.1016/j.snb.2014.12.015⟩. ⟨hal-01133052⟩

  • Article dans une revue

Nature of the active sites in CO oxidation on FeSiBEA zeolites

Ireneusz Kocemba, Jacek Rynkowski, Jacek Gurgul, Robert P. Socha, Kazimierz Łątka, Jean-Marc Krafft, Stanislaw Dzwigaj

FeSiBEA zeolites containing 1 wt% of iron were prepared by a two-step postsynthesis method in acidic (pH = 2.6) (Fe1.0SiBEA(w)) and alkaline (pH = 10) (Fe1.0SiBEA(p)) conditions. The structure of the studied materials, their acidity as well as the nature and environment of iron present in the…

Applied Catalysis A : General, 2016, 519, pp.16-26. ⟨10.1016/j.apcata.2016.03.025⟩. ⟨hal-01297494⟩

  • Article dans une revue

Synergetic effect of Ni and Au nanoparticles synthesized on titania particles for efficient photocatalytic hydrogen production

Ana L. Luna, Ekaterina Novoseltceva, Essyllt Louarn, Patricia Beaunier, Ewa Kowalska, Bunsho Ohtani, Miguel A. Valenzuela, Hynd Remita, Christophe Colbeau-Justin

Au and/or Ni nanoparticles were synthesized by radiolysis on TiO2 (commercial P25) at various composition (metal content). The modified photocatalysts were characterized by High Resolution Transmission Microscopy (HRTEM), Energy-Dispersive X-ray Spectroscopy (EDS), UV–vis Diffuse Reflectance…

Applied Catalysis B: Environmental, 2016, 191, pp.18 - 28. ⟨10.1016/j.apcatb.2016.03.008⟩. ⟨hal-01548348⟩

  • Communication dans un congrès

On the impedance response of a passive electrode : what is the influence of the double layer capacitance

Oumaïma Gharbi, Mai T.T. Tran, Mark Orazem, Bernard Tribollet, Mireille Turmine, Vincent Vivier

Determination of the effective capacitance of passive films remains a difficult challenge and mostly relies on the assumption the contribution of the double layer can be neglected. Such an approximation is easy to verify a posteriori when data analysis is performed assuming that each of the…

72nd ISE Meeting, ISE, Aug 2021, Jeju Island, South Korea. ⟨hal-04013545⟩