Kiinteitä lipidihiukkasia, bioaktiivisten aineiden hiukkasia, menetelmiä niiden valmistamiseksi ja niiden käyttö

摘要

The present invention is in the area of administration forms and delivery systems for drugs, vaccines and other biologically active agents. More specifically the invention is related to the preparation of suspensions of colloidal solid lipid particles (SLPs) of predominantly anisometrical shape with the lipid matrix being in a stable polymorphic modification and of suspensions of micron and submicron particles of bioactive agent (PBAs); as well as to the use of such suspensions or the lyophilizates thereof as delivery systems primarily for the parenteral administration of preferably poorly water-soluble bioactive substances, particularly drugs, and to their use in cosmetic, food and agricultural products. The emulsification process includes melting of the agent (a lipid and for bioactive agent) and mixing with an aqueous phase (heated to melt temperature). The emulsification is completed by a high-pressure homogenization.