1. Institute for Chemical and Bioengineering, Department of Chemistry and Applied Biosciences, ETH Hoenggerberg, CH-8093 Zurich, Switzerland, Particle Technology Laboratory, Department of Mechanical and Process Engineering, ETH Zentrum, CH-8092 Zurich, Switzerland, Degradable Solutions AG, CH-8952 Schlieren, Switzerland, and Laboratory of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Hoenggerberg, CH-8093 Zurich, Switzerland