Publications by authors named "C Villeneuve-Faure"

The interaction of foreign implants with their surrounding environment is significantly influenced by the adsorption of proteins on the biomaterial surfaces, playing a role in microbial adhesion. Therefore, understanding protein adsorption on solid surfaces and its effect on microbial adhesion is essential to assess the associated risk of infection. The aim of this study is to evaluate the effect of conditioning by fibronectin (Fn) or bovine serum albumin (BSA) protein layers of silica (SiO) surfaces on the adhesion and detachment of two pathogenic microorganisms: PAO1-Tn and CIP 48.

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The development of new photoanode materials for hydrogen production and water treatment is in full progress. In this context, hybrid TiO-CoO/Co(OH) photoanodes prepared using the sol-gel method using biosurfactants are currently being developed by our group. The combination of TiO with a cobalt-based compound significantly enhances the visible absorption and electrochemical performance of thin films, which is mainly due to an increase in the specific surface area and a decrease in the charge transfer resistance on the surface of the thin films.

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Article Synopsis
  • The study focuses on the effects of conductive atomic force microscopy (C-AFM) measurements on silicon carbide (SiC) surfaces, particularly looking at how strong electric fields can cause anodic oxidation due to water nanomeniscus formation.
  • Experimental investigations reveal that the amount of oxidation during C-AFM is influenced by the doping levels of SiC and that the presence of a water nanomeniscus significantly increases oxide growth under applied polarization.
  • The research also includes modeling to predict electric field distribution and current behavior at the AFM tip, showcasing that anodization occurs primarily in highly doped areas, which is confirmed through topographic analysis of SiC-MOSFET structures.
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Polymer nanocomposites (pNC) have attracted wide interests in electrical insulation applications. Compared to neat matrices or microcomposites, pNC provide significant improvements in combined electrical, mechanical and thermal properties. In the understanding of the reasons behind these improvements, a major role was attributed to the interphase, the interaction zone between the nanoparticles (NP) and the matrix.

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The interphase area appears to have a great impact on nanocomposite (NC) dielectric properties. However, the underlying mechanisms are still poorly understood, mainly because the interphase properties remain unknown. This is even more true if the temperature increases.

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