Laboratoire de réactivité de surface

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  • Article dans une revue

Surface-induced assembly of sophorolipids

Jessie Peyre, Ahmed Hamraoui, Marco Faustini, Vincent Humblot, Niki Baccile

The surface self-assembly properties of acidic sophorolipids, a bolaform microbial glycolipids with pH-responsive properties in solution, were studied based on the chemical nature of the support and pH of the solution. Sophorolipids generally form micelles in water but formation of morphologies…

Physical Chemistry Chemical Physics, 2017, 19, pp.15227-15238. ⟨10.1039/C7CP01339F⟩. ⟨hal-01534555⟩

  • Article dans une revue

Decoding anionic organization of hydroxide-fluorides in a diaspore-type network

Helies Hyrondelle, Matthew Suchomel, Vincent Rodriguez, Étienne Durand, Yannick Millot, Mathieu Duttine, Alain Demourgues

The diaspore-type crystalline structure is historically well-known in mineralogy, but it has also been widely studied for various applications in the field of catalysis, electrocatalysis, and batteries. However, once two anions of similar ionic size but different electronegativity, such as F– and…

Inorganic Chemistry, 2025, 64 (4), pp.1677-1689. ⟨10.1021/acs.inorgchem.4c03794⟩. ⟨hal-04939898⟩

  • Article dans une revue

Structure of the Surface Region of Stainless Steel: Bulk and Thin Films

Debi Garai, Axel Wilson, Ilaria Carlomagno, Carlo Meneghini, Francesco Carla, Hadeel Hussain, Ajay Gupta, Jörg Zegenhagen

The surface region of austenitic stainless steel (SS) is investigated by synchrotron X-ray powder diffraction (XRPD) and X-ray absorption near edge structure (XANES) measurements, because its composition and structure are crucial for the corrosion resistance of SS. Grazing incidence XRPD of a…

physica status solidi (b), 2022, 259 (4), pp.2100513. ⟨10.1002/pssb.202100513⟩. ⟨hal-03821005⟩

  • Article dans une revue

Nanoscale antiadhesion properties of sophorolipid-coated surfaces against pathogenic bacteria

Claire Valotteau, Niki Baccile, Vincent Humblot, Sophie Roelants, Wim Soetaert, Christian V Stevens, Yves Dufrêne

A current challenge in nanomedicine is to develop innovative strategies to fight infections caused by multiresistant bacterial pathogens. A striking example is antiadhesion therapy, which represents an attractive alternative to antibiotics to prevent and treat biofilm-associated infections on…

Nanoscale Horizons, 2019, 4, pp.975-982. ⟨10.1039/C9NH00006B⟩. ⟨hal-02093308⟩

  • Article dans une revue

Stabilization of ribofuranose by a mineral surface

Thomas Georgelin, Maguy Jaber, Frederic Fournier, Guillaume Laurent, France Costa-Torro, Marie-Christine Maurel, Jean-François Lambert

The existence of the ribose moiety in biomolecules poses two problems for prebiotic chemistry. First, the exclusive presence of the furanose isomer in RNA has to be accounted for since furanose is a minor form in solution and does not exist in crystals. Second, all D-ribose polymorphs are unstable…

Carbohydrate Research, 2015, 402, pp.241-244. ⟨10.1016/j.carres.2014.07.018⟩. ⟨hal-01275035⟩

  • Article dans une revue

Non-thermal plasma assisted catalytic NOx remediation from a lean model exhaust

Olivier Gorce, Hervé Jurado, Cyril Thomas, Gérald Dega-Mariadassou, Ahmed Khacef, Jean Marie Cormier, Jean Michel Pouvesle, Gérard Blanchard, Sabine Calvo, Yvanne Lendresse

No efficient catalyst presently exists for deNOx in lean burn conditions. Furthermore, actual catalysts generally deactivate during reaction. A cylindrical DBD non-thermal plasma reactor was coupled with a stable three-function catalyst in order to verify the nature of the effect of the plasma on…

The Journal of the Society of Automotive Engineers, 2001, 01, pp.3508. ⟨hal-00198661⟩

  • Article dans une revue

Sulfur Deactivation of NOx Storage Catalysts: A Multiscale Modeling Approach.

Nikola Rankovic, Céline Chizallet, Andre Nicolle, David Berthout, Patrick da Costa

Lean NOx Trap (LNT) catalysts, a promising solution for reducing the noxious nitrogen oxide emissions from the lean burn and Diesel engines, are technologically limited by the presence of sulfur in the exhaust gas stream. Sulfur stemming from both fuels and lubricating oils is oxidized during the…

Oil & Gas Science and Technology - Revue d'IFP Energies nouvelles, 2013, 68 (6), pp.995-1005. ⟨10.2516/ogst/2013123⟩. ⟨hal-00934035⟩

  • Thèse

Silk bionanocomposites : design, characterization and potential applications, Bionanocomposites à base de soie : élaboration, caractérisation et applications potentielles

Cristina Belda Marín

Silk-based bionancompoistes have attracted a growing interest in numerous applications, particularly in the biomedical field, owing to their ability to combine the specific properties of silk fibroin (biodegradability, biocompatibility and interesting mechanical properties) and nanoparticles (NPs…, Les « bionanocomposites » à base de soie sont des matériaux qui suscitent un intérêt croissant dans de nombreuses applications, et en particulier dans le domaine biomédical, de par leur capacité à combiner les propriétés de la fibroïne (biodégradabilité, biocompatibilité et propriétés mécaniques…

Biomaterials. Université de Technologie de Compiègne, 2020. English. ⟨NNT : 2020COMP2570⟩. ⟨tel-03292347⟩

  • Article dans une revue

Insights into bacteriophage T5 structure from analysis of its morphogenesis genes and protein components.

Yvan Zivanovic, Fabrice Confalonieri, Luc Ponchon, Rudi Lurz, Mohamed Chami, Ali Flayhan, Madalena Renouard, Alexis Huet, Paulette Decottignies, Alan R Davidson, Cécile Breyton, Pascale Boulanger

Bacteriophage T5 represents a large family of lytic Siphoviridae infecting Gram-negative bacteria. The low-resolution structure of T5 showed the T=13 geometry of the capsid and the unusual trimeric organization of the tail tube, and the assembly pathway of the capsid was established. Although major…

Journal of Virology, 2014, 88 (2), pp.1162-74. ⟨10.1128/JVI.02262-13⟩. ⟨hal-01130612⟩

  • Article dans une revue

Zn-Cu Alloy Nanofoams as Efficient Catalysts for the Reduction of CO 2 to Syngas Mixtures with a Potential-Independent H 2 /CO Ratio

Sarah Lamaison, David Wakerley, David Montero, Gwenaëlle Rousse, Dario Taverna, Domitille Giaume, Dimitri Mercier, Juliette Blanchard, Huan Ngoc Tran, Marc Fontecave, Marc Mougel

Alloying strategies are commonly used to design electrocatalysts that take on properties of their constituent elements. Herein, we explore the use of such a strategy to develop Zn-Cu alloyed electrodes with unique hierarchical porosity and tunable selectivity for CO2 vs. H + reduction. By varying…

ChemSusChem, 2019, 12 (2), pp.511-517. ⟨10.1002/cssc.201802287⟩. ⟨hal-02182388⟩