We have been developing supramolecular systems for use as in vivo carriers of diagnostics and therapeutics. This research has focused on the challenge of generating robust self-assembled coordination cages that are bio-compatible. We have principally been applying these delivery systems in nuclear medicine – using non-covalent encapsulation as a rapid and universal new tool for radio-labelling. Our research in this area is carried out in collaboration with the radiochemistry group of Steve Archibald (University of Hull).