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Habilitation à diriger des recherches

Interactions entre surfaces : Lifshitz et Helfrich avaient-ils déjà tout dit ?

Abstract : A physicist studying surface interactions can reasonably wonder whether there is something original to discover, in the XXIst century, after the works by Young, Laplace, van der Waals, Hamaker, Derjaguin, Landau, Verwey, Overbeek, Lifshitz, Cahn, de Gennes, Helfrich...
Taking advantage of our original wetting and colloid physics experiments, we try to demonstrate that all the conceptual background necessary to understand the entropic or van der Waals interactions between inert surfaces has been available for more than twenty years. Subsequently reporting on our experimental study of the streptavidin-biotin couple, we show that, as far as the specific interactions between biological molecules linked to surfaces are concerned, there is still a lot to understand. Moreover, we illustrate the limitations of the physicist approach within the framework of the experimental study of the interactions between molecules directly involved in cellular adhesion: cadherins.
Finally, we show two studies of surface interactions for colloids under flow and we introduce two research projects concerning the links between colloidal surface interactions and rheophysics.
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Habilitation à diriger des recherches
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Contributor : Emanuel Bertrand Connect in order to contact the contributor
Submitted on : Thursday, October 18, 2007 - 4:24:04 PM
Last modification on : Thursday, November 18, 2021 - 4:05:37 AM
Long-term archiving on: : Friday, November 25, 2016 - 6:34:10 PM


  • HAL Id : tel-00180309, version 1


Emanuel Bertrand. Interactions entre surfaces : Lifshitz et Helfrich avaient-ils déjà tout dit ?. Analyse de données, Statistiques et Probabilités []. Université Pierre et Marie Curie - Paris VI, 2007. ⟨tel-00180309⟩



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