FUNCTIONALIZED SOLID POLYMER NANOPARTICLES FOR DIAGNOSTIC AND THERAPEUTIC APPLICATIONS
申请人:Fischer Katrin Claudia
公开号:US20100196280A1
公开(公告)日:2010-08-05
The present invention describes polymer nanoparticles with a cationic surface potential, in which both hydrophobic and hydrophilic pharmaceutically active substances can be encapsulated. The hydrophilic and thus water-soluble substances are encapsulated in the particle core by co-precipitation through ionic complexing with a charged polymer. Both therapeutic agents and diagnostic agents can be used as pharmaceutically active substances for encapsulation. The cationic particle surface permits stable, electrostatic surface modification with partially oppositely charged compounds, which can contain target-specific ligands for improving passive and active targeting.