• Article dans une revue

A New Antibacterial N -Halamine Coating Based on Polydopamine

Nadia Nazi, Vincent Humblot, Catherine Debiemme

To prevent the formation of biofilms on material surfaces, the latter must have antibacterial properties. The aim of this study is to investigate the synthesis and the antibacterial effect of a new N-halamine coating based on polydopamine (PDA). The benefits of this coating are multiple, notably…

Langmuir, 2020, 36 (37), pp.11005-11014. ⟨10.1021/acs.Langmuir.0c01856⟩. ⟨hal-02981544⟩

• Article dans une revue

Controlled Formation of Native Defects in Ultrapure ZnO for the Assignment of Green Emissions to Oxygen Vacancies

Fredeŕic Averseng, Miao Zhang, Frederic Averseng, Jean-Marc Krafft, Patrizia Borghetti, Guylène Costentin, Slavica Stankic

Ultrapure ZnO nanopowders were synthesized via vapor-phase based methods under oxygen deficient conditions. The type and relative proportions of intrinsic point defects were studied by photoluminescence (PL) and EPR spectroscopies performed under strictly controlled conditions. Besides coupled PL/…

Journal of Physical Chemistry C, In press, 124 (23), pp.12696-12704. ⟨10.1021/acs.jpcc.0c01078⟩. ⟨hal-02896623⟩

• Article dans une revue

Simple procedure for vacant POM-stabilized palladium (0) nanoparticles in water: structural and dispersive effects of lacunary polyoxometalates

R. Villanneau, A. Roucoux, P. Beaunier, D. Brouri, A. Proust

Metallic palladium nanoparticles have been generated by hydrogenation with H2 of solutions of several non organometallic PdII-derivatives of heteropolytungstates, at ambient temperature and atmospheric pressure. These nanoparticles have been characterized by various techniques: 31P NMR and Raman…

RSC Advances, 2014, 4 (50), pp.26491-26498. ⟨10.1039/C4RA03104K⟩. ⟨hal-01121577⟩

• Article dans une revue

Efficiency of Polyoxometalate-Based Mesoporous Hybrids as Covalently Anchored Catalysts

Faiza Bentaleb, Ourania Makrygenni, Dalil Brouri, Cristina Coelho Diogo, Ahmad Mehdi, Anna Proust, Franck Launay, Richard Villanneau

Polyoxometalate (POM) hybrids have been covalently immobilized through the formation of amide bonds on several types of mesoporous silica. This work allows the comparison of three POM-based mesoporous systems, obtained with three different silica supports in which either the organic functions of…

Inorganic Chemistry, 2015, 54 (15), pp.7607-7616. ⟨10.1021/acs.inorgchem.5b01216⟩. ⟨hal-02143856⟩

• Article dans une revue

Heteropolytungstate-decorated core-shell magnetic nanoparticles: A covalent strategy for polyoxometalate-based hybrid nanomaterials

Ourania Makrygenni, Emilie Secret, Aude Michel, Dalil Brouri, Vincent Dupuis, Anna Proust, Jean-Michel Siaugue, Richard Villanneau

Amino-functionalized core-shell magnetic nanoparticles have been covalently grafted with Polyoxometalates (POMs). These multifunctional nanocomposites have been obtained through the coupling of heteropolytungstate-based hybrids bearing carboxylic acid functions with aminopropyl functions that…

Journal of Colloid and Interface Science, 2018, 514, pp.49-58. ⟨10.1016/j.jcis.2017.12.019⟩. ⟨hal-03511208v2⟩

• Article dans une revue

Corrigendum: Silica-Supported Au-Ag Catalysts for the Selective Hydrogenation of Butadiene

Nazila Masoud, Laurent Delannoy, Christophe Calers, Jean-Jacques Gallet, Fabrice Bournel, Krijn de Jong, Catherine Louis, Petra de Jongh

ChemCatChem, 2017, 9 (20), pp.4013-4013. ⟨10.1002/cctc.201701445⟩. ⟨hal-03884393⟩

• Article dans une revue

Oxygen reduction reaction monitored during corrosion by means of pumped-micropipette delivery/substrate collection (Pumped-MD/SC) mode of scanning electrochemical microscopy

Abdelilah Asserghine, Sophie Juillard, Julie Ducrot, Vincent Vivier, Carlos Sánchez-Sánchez

The key improvement of the corrosion resistance of metals requires understanding and resolving the electrochemical reactions involved at the local scale. Here, we present the use of the pumped-micropipette delivery/substrate collection (Pumped-MD/SC) mode of scanning electrochemical microscopy (…

Electrochimica Acta, 2023, 441, pp.141775. ⟨10.1016/j.electacta.2022.141775⟩. ⟨hal-03934097⟩

• Article dans une revue

Study of gold electrodissolution by scanning electrochemical microscopy in different modes

Divino Salvador Ramírez-Rico, Michel Keddam, Erika Roxana Larios-Durán, Vincent Vivier

The electrodissolution of gold has already been widely studied by several methods, but no consensus concerning the reaction mechanism has been reached. In this work, the scanning electrochemical microscopy (SECM) has been used in transient condition for studying the electrodissolution of gold in…

Electrochimica Acta, 2024, 481, pp.143956. ⟨10.1016/j.electacta.2024.143956⟩. ⟨hal-04468714⟩

• Article dans une revue

Cyto- and bio-compatibility assessment of plasma-treated polyvinylidene fluoride scaffolds for cardiac tissue engineering

Maria Kitsara, Gaëlle Revet, Jean-Sébastien Vartanian-Grimaldi, Alexandre Simon, Mathilde Minguy, Antoine Miche, Vincent Humblot, Thierry Dufour, Onnik Agbulut

As part of applications dealing with cardiovascular tissue engineering, drop-cast polyvinylidene fluoride (PVDF) scaffolds have been treated by cold plasma to enhance their adherence to cardiac cells. The scaffolds were treated in a dielectric barrier device where cold plasma was generated in a…

Frontiers in Bioengineering and Biotechnology, 2022, 10, pp.1008436. ⟨10.3389/fbioe.2022.1008436⟩. ⟨hal-03889499v2⟩

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The antibacterial activity of Magainin I immobilized onto mixed thiols Self-Assembled Monolayers

Vincent Humblot, Jean-Fabrice Yala, Pascal Thebault, Kada Boukerma, Arnaud Héquet, Jean-Marc Berjeaud, Claire-Marie Pradier

An antibacterial peptide, Magainin I, was covalently bound to a mixed 11-mercaptoundecanoïc acid (MUA) and 6-mercaptohexanol (C6OH) (ratio 1:3) Self-Assembled Monolayer (SAM) on gold surfaces. Each step of the surface functionalization was characterized by Polarization Modulation Reflection…

Biomaterials, 2009, 30 (21), pp.3503-3512. ⟨10.1016/j.biomaterials.2009.03.025⟩. ⟨hal-04435299⟩