Our research on nanoparticle generation in plasmas started within the Collaborative Research Unit SBF TR 24 “Fundamentals of Complex Plasmas” in the Projects 13 and B15. Here we have cooperated with Prof. Holger Kersten from the physics department whose group contributes with advanced plasma diagnostics. Recent work focusses on in situ monitoring and control of the nanoparticle formation process in a gas aggregation cluster source. This also includes alloy, oxide, and core-shell nanoparticles. We also performed in-situ investigations of the cluster formation mechanisms at the DESY synchrotron facility.