1. Department of Chemical
Engineering, University of Coimbra, Polo II, Pinhal de Marrocos, 3030-790 Coimbra, Portugal
2. Chemistry Department, University of Coimbra, 3004-535 Coimbra,
Portugal
3. Department
of Radiology, University of Pennsylvania, Philadelphia,
Pennsylvania 19104, United States
4. Department of Chemistry, Carnegie Mellon University, 4400 Fifth
Avenue, Pittsburgh, Pennsylvania 15213, United States
5. Water and Process
Technologies, GE Power and Water, 4636 Somerton Road, Trevose, Pennsylvania 19053, United States