| abstract |
The invention is concerned with a Process for preparing nano- or microparticles comprising a carrier-polymer and a biologically active ingredient, wherein the process is a solvent emulsion process comprising an organic phase (OP) and an aqueous phase (AP) to form an emulsion, wherein, in the case of an oil-in-water emulsion (O/W), the organic phase (OP) comprises the biologically active ingredient dissolved or dispersed therein or wherein, in the case of a water-in-oil emulsion (W1/O), the aqueous phase (AP) comprises the biologically active ingredient dissolved or dispersed therein. The organic phase (OP) is saturated with the salt-containing aqueous phase (AP) and vice versa. |