Calcium phosphate porous pellets as drug delivery systems : effect of drug carrier composition on drug loading and in vitro release

Autor: Dominique Chulia, Maggy Dutreih-Colas, Chantal Damia, Marylène Viana, Eric Champion, Hiva Baradari, Etienne Laborde, Nathalie Pécout
Přispěvatelé: Axe 1 : procédés céramiques, Science des Procédés Céramiques et de Traitements de Surface (SPCTS), Université de Limoges (UNILIM)-Ecole Nationale Supérieure de Céramique Industrielle (ENSCI)-Institut des Procédés Appliqués aux Matériaux (IPAM), Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université de Limoges (UNILIM)-Ecole Nationale Supérieure de Céramique Industrielle (ENSCI)-Institut des Procédés Appliqués aux Matériaux (IPAM), Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Axe 3 : organisation structurale multiéchelle des matériaux
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: Journal of the European Ceramic Society
Journal of the European Ceramic Society, Elsevier, 2012, 32, pp.2679-2690. ⟨10.1016/j.jeurceramsoc.2012.01.018⟩
ISSN: 0955-2219
DOI: 10.1016/j.jeurceramsoc.2012.01.018⟩
Popis: Drug loaded porous calcium phosphate bone substitutes are studied for targeted drug delivery applications. In this study, porous hydroxyapatite and beta-tricalcium phosphate pellets were investigated as anti-inflammatory drug carriers and their ibuprofen adsorption and release properties were compared. While the adsorption equilibrium time of 1 h was obtained for both pellets, hydroxyapatite pellets showed a higher adsorption capacity than beta-tricalcium phosphate. The physico-chemical characterisations of loaded pellets confirmed an ibuprofen reversible physisorption on both hydroxyapatite and beta-tricalcium phosphate pellets. Moreover, higher adsorption capacity of hydroxyapatite was attributed to their physical differences. The in vitro ibuprofen release evaluation showed 100% release of ibuprofen from both hydroxyapatite and beta-tricalcium phosphate pellets which was found to be compatible with the obtained interactions between the pellets and ibuprofen. © 2012 Elsevier Ltd. All rights reserved.
Databáze: OpenAIRE