• Article dans une revue

Antibacterial properties of sophorolipid-modified gold surfaces against Gram positive and Gram negative pathogens

Claire Valotteau, Ibrahim M. Banat, Christopher A. Mitchell, Helen Lydon, Roger Marchant, Florence Babonneau, Claire-Marie Pradier, Niki Baccile, Vincent Humblot

Sophorolipids are bioderived glycolipids displaying interesting antimicrobial properties. We show that they can be used to develop biocidal monolayers against Listeria ivanovii, a Gram-positive bacterium. The present work points out the dependence between the surface density and the antibacterial…

Colloids and Surfaces B: Biointerfaces, 2017, 157, pp.325-334. ⟨10.1016/j.colsurfb.2017.05.072⟩. ⟨hal-01535615⟩

• Article dans une revue

Degree Complexity of a Family of Birational Maps

Eric Bedford, Kyounghee Kim, Tuyen Trung Truong, Nina Abarenkova, Jean-Marie Maillard

Mathematical Physics, Analysis and Geometry, 2008, 11 (1), pp.53-71. ⟨10.1007/s11040-008-9039-6⟩. ⟨hal-02340518⟩

• Article dans une revue

Effect of Nontronite Smectite Clay on the Chemical Evolution of Several Organic Molecules under Simulated Martian Surface Ultraviolet Radiation Conditions

Olivier Poch, Maguy Jaber, Fabien Stalport, Sophie Nowak, Thomas Georgelin, Jean-François Lambert, Cyril Szopa, Patrice Coll

Most of the phyllosilicates detected at the surface of Mars today are probably remnants of ancient environments that sustained long-term bodies of liquid water at the surface or subsurface and were possibly favorable for the emergence of life. Consequently, phyllosilicates have become the main…

Astrobiology, 2015, 15 (3), pp.221-237. ⟨10.1089/ast.2014.1230⟩. ⟨hal-01136822⟩

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Influence of organic additives on the properties of impregnationsolutions and on nickel oxide particle size for Ni/Al2O3catalysts

Faiza Bentaleb, Michel Che, Anne-Claire Dubreuil, Cécile Thomazeau, Eric Marceau

tThe introduction of organic additives, such as polyols, sugars or polyacids, in impregnation solutionshas been suggested to better control the size of nanoparticles on supported catalysts. The present paperfocuses on the roles played by three of these additives, sorbitol, glucose and citric acid,…

Catalysis Today, 2014, 235, pp.250-255. ⟨10.1016/j.cattod.2014.02.020⟩. ⟨hal-01065046⟩

• Communication dans un congrès

Mesoporous alumina of controlled pore size obtained by surface alumination of pure silica SBA 15

Emmanuel de La Rochefoucauld, Xavier Carrier, Jean-Marc Krafft, Juliette Blanchard

Silica-alumina oxide supports were synthesized by surface alumination of mesoporous silica SBA-15 with Al isopropoxide in organic solvents. These materials were characterised by N2 adsorption-desorption isotherms, XRD, 27Al NMR and cumene cracking. The chemical nature of the surface was probed by…

Scientific Bases for the Preparation of Heterogeneous Catalysts, Proceedings of the 9th International Symposium, 2006, France. pp.13-20. ⟨hal-00096788⟩

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Chemical Preparation of Supported Bimetallic Catalysts. Gold-Based Bimetallic, a Case Study

Catherine Louis

This review focuses on the chemical methods used to prepare supported bimetallic heterogeneous catalysts, i.e., bimetallic nanoparticles deposited on a support. The review is limited to the preparation of gold-based bimetallic catalysts and moreover to bimetallic nanoparticles supported on powder…

Catalysts, 2016, 6 (8), pp.110. ⟨10.3390/catal6080110⟩. ⟨hal-01375388⟩

• Communication dans un congrès

Understanding the pH effect on the magnesium corrosion by means of electrochemical impedance spectroscopy

Abdelmoheiman Zakaria Benbouzid, Oumaïma Gharbi, Mai T.T. Tran, Mireille Turmine, Vincent Vivier

The corrosion mechanism of magnesium has been the subject of several papers, aiming to explain all the reported phenomena occurring at the Mg/electrolyte interface in general, and the negative difference effect (NDE) particularly [1]. In fact, this phenomenon consists on an increase of the hydrogen…

72rd ISE Meeting, ISE, Aug 2021, Jeju Island, South Korea. ⟨hal-04013579⟩

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Magnetic Fe 2 O 3 −Polystyrene/PPy Core/Shell Particles: Bioreactivity and Self-Assembly

Claire Mangeney, Meriem Fertani, Smain Bousalem, Ma Zhicai, Souad Ammar, Frédéric Herbst, Patricia Beaunier, Abdelhamid Elaissari, Mohamed Chehimi

This paper describes the synthesis of new magnetic, reactive polystyrene/polypyrrole core/shell latex particles. The core consists of a polystyrene microsphere containing gamma-Fe2O3 superparamagnetic nanoparticles (PSmag), and the shell is made of reactive N-carboxylic acid-functionalized…

Langmuir, 2007, 23 (22), pp.10940-10949. ⟨10.1021/la700492s⟩. ⟨hal-02093459⟩

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Characterization and catalytic activity of Mn (salen) immobilized on silica by various strategies

Khalil Tesnime Abou, Chaaben Semy Ben, Boujday Souhir, Bergaoui Latifa

Different strategies were applied to prepare supported Mn(salen) on fumed silica and to explore the effect of the interaction nature between the active sites and the surface on the catalytic activity. Direct and multistep grafting methods were used: the silica surface was silylated and the metal…

IOSR Journal of Applied Chemistry, 2015, 8, pp.36-45. ⟨10.9790/5736-08113645⟩. ⟨hal-01133157⟩

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Adsorption of dyes from aqueous solution under batch mode using cellulosic orange peel waste

Sami Guiza, Launay Franck, Mohamed Bagané

The present work aimed at studying the use of orange peel (OP) biosorption for the removal of methylene blue (MB) and Congo red (CR) from aqueous solution. The influences of initial dye concentration and contact time on the biosorption process were studied. Experimental data were modeled by…

Desalination and Water Treatment, 2018, 113, pp.262-269. ⟨10.5004/dwt.2018.22258⟩. ⟨hal-04015930⟩