Sur une relation entre l'élasticité optique et l'activité chimique dans un cristal de spath d'Islande

in Bulletin de l'Académie Royale des Sciences, des Lettres et des Beaux-arts de Belgique. Sciences. 3e série (1887), XIV(7), 13-14

Les surcoûts collectifs de la désurbanisation : quand la mobilité dessine la ville

in La Cemathèque (2000), (4), 8-11

Les surcoûts de l’étalement urbain

Conference given outside the academic context (2010)

Les surcoûts de la désurbanisation

Conference given outside the academic context (2004)

Les surcoûts des services publics collectifs liés à la périurbanisation : les réseaux d’infrastructures et les services de desserte

Report (2000)

Les sûretés (2000-2002)

in Chronique de droit à l'usage du notariat (2002)

Sûretés et procédures collectives

Book published by Anthémis (2008)

Les sûretés personnelles, partim de Frédéric Georges Les sûretés

in Leleu, Yves-Henri (Ed.) Chroniques notariales (2009)

Surface activity of a fluorinated carbohydrate ester in water/carbon dioxide emulsions

in Journal of Colloid & Interface Science (2013), 398

The water/carbon dioxide (W/CO2) interfacial activity and emulsifying capacity of hydrocarbon and fluorinated carbohydrate esters are investigated of the first time and compared to the performance of ... [more ▼]

The water/carbon dioxide (W/CO2) interfacial activity and emulsifying capacity of hydrocarbon and fluorinated carbohydrate esters are investigated of the first time and compared to the performance of sodium-bis(2-ethylhexyl)sulfosuccinate (AOT). The reduction of the W/CO2 interfacial tension was measured using a pendant drop tensiometer equipped with a cell view pressurized with CO2 at 80 bar and 45 °C. It was found that the interface stabilization improved in the order AOT < 6-O-myristoyl mannose < 6-O-(2H,2H,3H,3H-perfluoroundecanoyl)-D-mannose. In the latter case, a drastic reduction of the W/CO2 interfacial tension was observed (85% reduction, interfacial tension at the equilibrium = 3.6 mN/m), which emphasizes the advantage of using a fluorinated CO2-philic tail and the potential of sugars as hydrophilic head. The formulation of stable W/CO2 emulsions was also achieved using the fluorinated mannose derivative. This study paves the way to the design of a novel class of competitive surface active agents for W/CO2 emulsions. [less ▲]

Surface and bio-adhesion properties of new hydrophobic and current materials for artificial intraocular lens

Poster (2012)

A high bio-adhesion appears to be one of the key factor for posterior capsular opacification (PCO) prevention. Indeed, the proteins adsorption and the lens epithelial cells (LEC) adhesion both contribute ... [more ▼]

A high bio-adhesion appears to be one of the key factor for posterior capsular opacification (PCO) prevention. Indeed, the proteins adsorption and the lens epithelial cells (LEC) adhesion both contribute to PCO development. We present in this work the comparison of a new glistening free hydrophobic material (GF® from Physiol) with benchmark hydrophobic and hydrophilic materials regarding their chemicophysical properties and their respective ability to interact with lens epithelial cells and proteins. For this purpose, we determined the hydrophobicity by contact angle measurement (assessed by water drop and air bubble methods), the surface adhesiveness by atomic force microscopy (AFM), the proteins adsorption by fluorescent measurement and the LEC adhesion by the determination of cell density. The new hydrophobic material presents comparable hydrophobicity, proteins adsorption and LEC adhesion to current commercial hydrophobic material. Its adhesiveness, measured with the AFM, is intermediate between hydrophilic and hydrophobic materials. In conclusion, the bio-adhesion properties of this new glistening free hydrophobic IOL material are similar to generic hydrophobic acrylic materials and therefore should to the same extent prevent PCO. [less ▲]