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Formation of polymeric nanoparticles using the nanoprecipitation method. The organic phase consists of a solution—or a mixture—of a polymer (carrier), the organic solvent, the active substance (natural active ingredient), oil and a lipophilic surfactant. The aqueous phase consists of a mixture of surfactant (stabilizer) and ultrapure water. Using a burette and a magnetic stirrer, the organic phase is slowly added to the aqueous phase.
