Laboratoire de réactivité de surface

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  • Thèse

Spectroscopies à l'échelle de la molécule individuelle : dynamique de force pour l'interaction d'oligopeptides sur or et diffusion Raman exaltée par effet de pointe sur rotaxanes, Spectroscopy on the scale of the individual molecule: dynamics of strength for the interaction of oligopeptides on gold and distribution Raman excited by state-of-the-art effect on rotaxanes

Marie Steffenhagen

Au-delà de la simple imagerie, les techniques de champ proche permettent sonder des interactions moléculaires de manière contrôlée sur un nombre réduit de molécules, voire une seule. Dans ce sujet, deux techniques de spectroscopie à sonde locale ont été mises à profit. D’une part, la spectroscopie…, Beyond simply imaging, near-field techniques allow to probe and control molecular interactions onto a reduced number of molecules, if not a single one. In this subject, we took advantage of two local-probe spectroscopies. On the one hand, dynamic force spectroscopy (AFM-DFS) was applied to measure…

Chimie théorique et/ou physique. Université Pierre et Marie Curie (Paris 6), 2016. Français. ⟨NNT : ⟩. ⟨tel-01617853⟩

  • Article dans une revue

Caractérisations par microscopie, spectroscopie et électrochimie d'un biofilm à partir d'une eau potable sur acier inoxydable

Jean Gamby, Alain Pailleret, C. Boucher, Claire Marie Pradier, Bernard Tribollet

Nous avons suivi la formation d’un biofilm sur l’acier inoxydable (AISI 316) immergé dans un circuit d’eau potable pour deux températures (20 ◦C et 37 ◦C à pH = 8,25 – 8,5), à l’aide de techniques de caractérisation par spectroscopies : PM-IRAS (infrarouge de surface), XPS (spectroscopie des…, Microscopic, spectroscopic and electrochemical methods to investigate development of potable water biofilms on stainless substrate. We studied biofilm formation on stainless steel occurring in a drinking water distribution system which operated at two different temperature (20 ◦C and 37 ◦C at pH =…

Matériaux et Techniques, 2006, 94, pp.441 - 454. ⟨10.1051/mattech:2007019⟩. ⟨hal-01729027⟩

  • Article dans une revue

Gold nanoparticle-based localized surface plasmon immunosensor for staphylococcal enterotoxin A (SEA) detection

Maroua Ben Haddada, David Hu, Michèle Salmain, Lu Zhang, Chen Peng, Yi Wang, Bo Liedberg, Souhir Boujday

We describe the engineering of stable gold nanoparticle (AuNP) bioconjugates for the detection of staphylococcal enterotoxin A (SEA) using localized surface plasmon resonance (LSPR). Two types of AuNP bioconjugates were prepared by covalently attaching anti-SEA antibody (Ab) or SEA to AuNPs. This…

Analytical and Bioanalytical Chemistry, 2017, 409 (26), pp.6227-6234. ⟨10.1007/s00216-017-0563-8⟩. ⟨hal-01585234⟩

  • Article dans une revue

Mechanical properties of nanostructured films with an ultralow volume fraction of hard phase

Marion Chenal, Cyril Véchambre, J.-M. Chenal, Laurent Chazeau, Vincent Humblot, Laurent Bouteiller, Costantino Creton, Jutta Rieger

We demonstrate in this paper how polymerization induced self-assembly (PISA) using RAFT can be used to synthesize very asymmetric but monodisperse poly(acrylic acid)-b-poly(n-butyl acrylate) block copolymers, PAA-b-PBA, with a short PAA block and a long PBA block. In the course of the surfactant-…

Polymer, 2017, 109, pp.187-196. ⟨10.1016/j.polymer.2016.12.043⟩. ⟨hal-01421077⟩

  • Article dans une revue

Multi-stimuli responsive supramolecular diblock copolymers

L. Sambe, K. Belal, F. Stoffelbach, J. Lyskawa, F. Delattre, M. Bria, F.X. Sauvage, M. Sliwa, V. Humblot, B. Charleux, G. Cooke, P. Woisel

A well-defined cyclobis(paraquat-p-phenylene) (CBPQT<sup>4+</sup>) end-functionalized poly(<i>n</i>-butyl acrylate) 3 was prepared <i>via</i> RAFT polymerization using a new trithiocarbonate CBPQT<sup>4+</sup> derivative 2 as a reversible chain…

Polymer Chemistry, 2014, 5, pp.1031 - 1036. ⟨10.1039/c3py01093g⟩. ⟨hal-01113479⟩

  • Article dans une revue

Enzymatic Approach in Calcium Phosphate Biomineralization: A Contribution to Reconcile the Physicochemical with the Physiological View

Clément Guibert, Jessem Landoulsi

Biomineralization is the process by which organisms produce hard inorganic matter from soft tissues with outstanding control of mineral deposition in time and space. For this purpose, organisms deploy a sophisticated “toolkit” that has resulted in significant evolutionary innovations, for which…

International Journal of Molecular Sciences, 2021, 22 (23), pp.12957. ⟨10.3390/ijms222312957⟩. ⟨hal-03479544⟩

  • Article dans une revue

Supramolecular Self‐Assembly and Organization of Collagen at Solid/Liquid Interface: Effect of Spheroid‐ and Rod‐Shaped TiO 2 Nanocrystals

Mathieu Beauvais, Thomas Degabriel, Nesrine Aissaoui, Vincent Dupres, Elodie Colaço, Karim El Kirat, Rute F Domingos, Dalil Brouri, Claire‐marie Pradier, Jolanda Spadavecchia, Jessem Landoulsi

The adsorption behavior of collagen on solid surfaces is a process that determines the role of this protein to mediate cell–material interaction. Herein, the mechanism of self‐assembly and organization of collagen on a model substrate is investigated in the presence of TiO2 nanoparticles. In…

Advanced Materials Interfaces, 2019, 6 (14), pp.1900195. ⟨10.1002/admi.201900195⟩. ⟨hal-02391527⟩

  • Communication dans un congrès

Caracterización in-operando de catalizadores Fe-N-C para la reducción del H2O2 mediante microscopía electroquímica de barrido

Carlos M Sánchez-Sánchez, Christian Candia-Onfray, Ricardo Venegas, Lin Zhang, Sophie Juillard, Ricardo Salazar, José F. Marco, Nieves Menendez, Francisco Javier Recio, Vincent Vivier

Se han desarrollado diferentes rutas sintéticas para obtener catalizadores pirolizados Fe-N-C muy activos para la reacción de reducción de oxígeno (ORR). En particular, presentamos aquí las bases nitrogenadas del ADN y el ARN como precursores de C-N [1]. El H2O2 formado como subproducto durante la…

XLII reunion del Grupo Especializado de Electoquimica de la RSEQ (42 GERSEQ 2022), Jul 2022, Santander, España. ⟨hal-03988309⟩

  • Article dans une revue

The Impact of Reduction Temperature and Nanoparticles Size on the Catalytic Activity of Cobalt-Containing BEA Zeolite in Fischer–Tropsch Synthesis

Karolina A Chalupka, Jacek Grams, Pawel Mierczynski, Malgorzata I Szynkowska, Jacek Rynkowski, Thomas Onfroy, Sandra Casale, Stanislaw Dzwigaj

A goal of this work was to investigate the influence of the preparation procedure and activation conditions (reduction temperature and reducing medium: pure hydrogen (100% H 2) or hydrogen-argon mixture (5% H 2-95% Ar)) on the activity of Co-containing BEA zeolites in Fischer-Tropsch synthesis.…

Catalysts, 2020, 10 (5), pp.553. ⟨10.3390/catal10050553⟩. ⟨hal-03987087⟩

  • Thèse

Emergence de biopolymères de complexite contrôlée dans les scénarios d'origine de la vie, Emergence of biopolymers with controlled complexity in an origins of life scenario

Lise Bedoin

La matière vivante se caractérise par la présence de biopolymères non aléatoires dont la fonction biologique dépend de la séquence en monomères. Pour comprendre les origines de la vie, il est essentiel d’expliquer l’émergence de polymères non aléatoires dans un monde où les cellules vivantes n’…, Living matter is characterized by the presence of non-random biopolymers whose biological function depends on the monomer sequence. Thus, a major challenge for the elucidation of the Origins of Life lies in understanding how non-random polypeptides were formed and selected among all of the possible…

Polymères. Sorbonne Université, 2021. Français. ⟨NNT : 2021SORUS229⟩. ⟨tel-03475214⟩