1. Center for Radiopharmaceutical Sciences ETH-PSI-USZ; Paul Scherrer Institute; 5232 Villigen PSI Switzerland
2. Laboratory of Polymer Chemistry; Department of Materials; ETH Zürich; Vladimir-Prelog-Weg 5 8093 Zürich Switzerland
3. Laboratory of Organic Chemistry; Department of Chemistry and Applied Biosciences; ETH Zürich; Vladimir-Prelog-Weg 4 8093 Zürich Switzerland
4. Institute of Pharmaceutical Sciences; Department of Chemistry and Applied Biosciences; ETH Zürich; Vladimir-Prelog-Weg 4 8093 Zürich Switzerland