1. Institute of Pharmacology of Natural Products and Clinical PharmacologyUlm University Helmholtzstr. 20 89081 Ulm Germany
2. Max‐Planck Institute for Polymer Research Ackermannweg 10 55128 Mainz Germany
3. Department of Inorganic Chemistry IUlm University Albert‐Einstein‐Allee 11 89081 Ulm Germany
4. Hubei Key Laboratory of Bioinorganic Chemistry and Materia MedicaSchool of Chemistry and Chemical EngineeringHuazhong University of Science and Technology Wuhan 430074 P. R. China
5. School of Materials Science and EngineeringSouthwest Jiaotong University Chengdu 610031 P. R. China
6. Internal Medicine II, Core Facility Small Animal MRI, Medical FacultyUlm University Albert‐Einstein‐Allee 23 89081 Ulm Germany