• Article dans une revue

Detailed crystal chemistry and iron topochemistry of asbestos occurring in its natural setting: A first step to understanding its chemical reactivity

A. Pacella, G. B. Andreozzi, Jeanine Fournier

Five samples of tremolite asbestos from Italy and USA were fully characterized by ICP-MS, SEM, EMPA, FT-IR, MS, XRPD, to correlate crystal chemistry with chemical reactivity. Iron topochemistry was investigated in detail, due to the role of Fe in the aetiology of respiratory inflammatory diseases.…

Chemical Geology, 2010, 277 (3-4), pp.197-206. ⟨10.1016/j.chemgeo.2010.07.018⟩. ⟨hal-00604789⟩

• Article dans une revue

Catalytic performance of platinum doped tungsten carbide in simultaneous hydrodenitrogenation and hydrodesulphurization

M. H. Lewandowski, Patrick da Costa, D. Benichou, Celine Sayag

The simultaneous hydrodesulphurization (HDS) and hydrodenitrogenation (HDN) reactions of refractory model compds. were performed for the first time over tungsten carbide doped with platinum before and after prepn. (0.3%). It was then compared to that of a pure non-modified W2C. The model compds.…

Applied Catalysis B: Environmental, 2010, 93 (3-4), pp.241-249. ⟨10.1016/j.apcatb.2009.09.035⟩. ⟨hal-00604775⟩

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Insight into the mechanism of action of temporin-SHa, a new broad-spectrum antiparasitic and antibacterial agent

Zahid Raja, Sonia André, Feten Abbassi, Vincent Humblot, Olivier Lequin, Tahar Bouceba, Isabelle Correia, Sandra Casale, Thierry Foulon, Denis Sereno, Bruno Oury, Ali Ladram

Antimicrobial peptides (AMPs) are promising drugs to kill resistant pathogens. In contrast to bacteria, protozoan parasites, such as Leishmania, were little studied. Therefore, the antiparasitic mechanism of AMPs is still unclear. In this study, we sought to get further insight into this mechanism…

PLoS ONE, 2017, 12 (3), pp.e0174024. ⟨10.1371/journal.pone.0174024⟩. ⟨hal-01517346⟩

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Synthesis of small Ni-core–Au-shell catalytic nanoparticles on TiO2 by galvanic replacement reaction

Julien Reboul, Z. y Li, Jun Yuan, Kazuki Nakatsuka, Masakazu Saito, Kohsuke Mori, Hiromi Yamashita, Yu Xia, Catherine Louis

We report the first preparation of small gold–nickel (AuNi) bimetallic nanoparticles (<5 nm) supported on titania by the method of galvanic replacement reaction (GRR), evidenced by the replacement of Ni atoms by Au atoms according to the stoichiometry of the reaction. We showed that this…

Nanoscale Advances, 2021, ⟨10.1039/d0na00617c⟩. ⟨hal-03113238⟩

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Sol-Gel Processing of Metal-Organic Frameworks

Kenji Sumida, Kang Liang, Julien Reboul, Ilich A. Ibarra, Shuhei Furukawa, Paolo Falcaro

Chemistry of Materials, 2017, 29 (7), pp.2626 - 2645. ⟨10.1021/acs.chemmater.6b03934⟩. ⟨hal-01547284⟩

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Time-of-Flight Secondary Ion Mass Spectrometry Investigation of the Orientation of Adsorbed Antibodies on SAMs Correlated to Biorecognition Tests

Victor Lebec, Souhir Boujday, Claude Poleunis, Claire-Marie Pradier, Arnaud Delcorte

The adsorption of an antiglutamate dehydrogenase (Anti-GDH) antibody on different surfaces was studied to probe its orientation and bioactivity. Three different situations were investigated: physisorption on a −COOH-terminated thiols self-assembled monolayer (SAM) on gold, covalent grafting on the…

Journal of Physical Chemistry C, 2014, 118, pp.2085-2092. ⟨10.1021/jp410845g⟩. ⟨hal-00982220⟩

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Silk Polymers and Nanoparticles: A Powerful Combination for the Design of Versatile Biomaterials

Cristina Belda Marín, Vincent Fitzpatrick, David Kaplan, Jessem Landoulsi, Erwann Guénin, Christophe Egles

Silk fibroin (SF) is a natural protein largely used in the textile industry but also in biomedicine, catalysis, and other materials applications. SF is biocompatible, biodegradable, and possesses high tensile strength. Moreover, it is a versatile compound that can be formed into different materials…

Frontiers in Chemistry, 2020, 8, ⟨10.3389/fchem.2020.604398⟩. ⟨hal-04025159⟩

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Low temperature dry reforming of methane on rhodium and cobalt based catalysts: active phase stabilization by confinement in the mesoporous SBA-15

N. El Hassan, M.N. Kaydouh, H. Geagea, H. Elein, Karam Jabbour, S. Casale, H El Zakhem, Pascale Massiani

Two silica supports either non porous (SiO2) or mesoporous (SBA-15) were impregnated with cobalt (12 wt%) in order to study the confinement effect on catalytic performances in dry reforming of methane. Further increase of activity was obtained by adding small amounts of rhodium (0.2 and 0.5 wt%) to…

Applied Catalysis A : General, 2016, 520, pp.114-121. ⟨10.1016/j.apcata.2016.04.014⟩. ⟨hal-01305526⟩

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Au-Ru/TiO2 prepared by deposition-precipitation with urea: Relevant synthesis parameters to obtain bimetallic particles

Lina Calzada, Catherine Louis, Chang Wan Han, Volkan Ortalan, Rodolfo Zanella

Although Au and Ru are not miscible in the bulk, the paper focusses on the attempts to prepare bimetallic Au-Ru/TiO2 catalysts by deposition-precipitation with urea (co-DPU and sequential DPU, Au then Ru and vice versa). Gold was found already reduced after the preparations of co-DPU and Ru then Au…

Applied Catalysis B: Environmental, 2020, 264, pp.118503. ⟨10.1016/j.apcatb.2019.118503⟩. ⟨hal-04025207⟩

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Effect of ceria promotion on the catalytic performance of Ni/SBA-16 catalysts for CO 2 methanation

Chao Sun, Patricia Beaunier, Patrick da Costa

The presence of Ce inside the SBA-16 structure promoted the ratio of Ce 3+ and medium basic sites and thus favoured CH 4 formation.

Catalysis Science & Technology, 2020, 10 (18), pp.6330-6341. ⟨10.1039/D0CY00922A⟩. ⟨hal-04025210⟩