Abstract
In the present work novel drug delivery systems consisting in highly porous Hyaluronan foams for the administration of a non-steroidal anti-inflammatory drug (NSAID), ketoprofen, have been obtained. A sugar-derived surfactant associated with ketoprofen was prepared and incorporated into the porous hyaluronan materials. The association between a lactose derived surfactant, Lhyd12, and ketoprofen was obtained by acid-base reaction and its physicochemical properties were studied. Tensiometric and dynamic light scattering (DLS) determinations showed the formation of catanionic surfactant aggregates, Lhyd12/ketoprofen, in aqueous solution. Furthermore, the catanionic surfactants allowed greater solubilisation of ketoprofen. Hyaluronan porous materials were developed using butanediol diglycidyl ether as crosslinking agent. The profile release of Lhyd12/ketoprofen from hyaluronan based materials shows differences as a function of the aggregation state of catanionic surfactant.
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