alexa Inclusion of ibuprofen in mesoporous templated silica: drug loading and release property.
Materials Science

Materials Science

Journal of Nanomedicine & Nanotechnology

Author(s): Charnay C, Bgu S, TournPteilh C, Nicole L, Lerner DA,

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Abstract The aim of this study is to determine the feasibility of loading biologically active molecules into templated mesoporous silica (MCM 41). This material shows an important mesoporosity associated to hexagonally organized channels, a narrow pore size distribution and a large surface area. Ibuprofen was selected as a model molecule since it is a well documented and much used anti-inflammatory drug. Furthermore, it has a lipophilic character and its molecular size is suitable for inclusion within the mesopores of the MCM 41 material. In order to load ibuprofen within the mesopores, adsorption experiments using various solvents or successive impregnations with solutions of ibuprofen in ethanol were performed. At each step of the loading process, the pore filling was characterized by nitrogen adsorption experiments and by X-ray diffraction. The impregnation procedure results in a significant improvement of the amount of ibuprofen loaded into MCM 41. The in vitro drug release was investigated with simulated biological fluids (gastric and intestinal). Hundred percent release is observed at the end of the in vitro experiment. This article was published in Eur J Pharm Biopharm and referenced in Journal of Nanomedicine & Nanotechnology

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