In particular of complex overall charge that is neutral or negative form of a cationic or neutral vesicle and a biologically active substance, anionic, their preparation and their use

摘要

A stable particulate complex (I) having a global negative or neutral charge a spherical shape, and a lamellar, rolled and condensed particulate structure, comprises a globally anionic biologically active substance and a mixture of cationic and anionic constituents of which at least one is a lipid.