| abstract |
The present invention relates to vectors useful for the administration of active principles ( PA ), preferably medicinal or nutritional, in particular by oral or parenteral route. The technical problem solved by the invention is that of providing vectors formed by (nano) or (micro) particles based on polyamino acids, and which are inert with respect to PA (proteins), of controllable particle size , resistant and economical. In accordance with the invention, the particles have an average size of less than 200 μm and consist of a polyamino acid of the Leu / Glu type, in which Leu / Glu + Leu ≥ 3% and the M w ≥ 4000 D. |