ホーム > Séminaires > Archives soutenances > Soutenances 2011 > Thèse Milad AL HELOU - lundi 11 juillet à 14h30 - Elaboration de Biomatériaux Biodegradables Nanostructurés par Méthodes Douces.
Sauf mention contraire, les séminaires et les soutenances se déroulent à 11h30 en salle 454A du bâtiment Condorcet.
Attention : horaire inhabituel 14h30 !
We study a new method for the elaboration of nanoporous biomatrials intended to deliver encapsulated molecules via diffusion by using soft physico-chemical methods. Our strategy consists of casting a polylactide biopolymer around templating micelles. The micelles are polyion complexes prepared from double hydrophilic block copolymers and hydrosuluble polyamines in aqueous solution. Firstly, we show that by switching the aqueous solvent to an organic one, the complexes remain stable and unchanged. Secondly, we study the behavior of the micelles in concentrated aqueous and organic solutions and demonstrate the stability of these solutions. The polylactide biopolymer is then added to the organic solution to form the continuous matrix around the templating micelles. We demonstrate the miscibility between the micelles and the biopolymer in solution, as well as in the bulk state after solvent evaporation, under specific experimental conditions.
Contact : Équipe séminaires / Seminar team - Published on / Publié le 2011年6月29日
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