Bastian is working on the synthesis of mesoporous silica- (MSN), organosilica- (MON) nanoparticles and their functionalization with e.g. targeting ligands. Especially he is interested in nanoparticles, which have a prolonged circulation time within the bloodstream while allowing for a fast degradation at the target position. To achieve this goal a multitude of modifications of the nanoparticles is possible and needed.