1. Departamento Química Orgánica e Inorgánica, Facultad de Ciencia y Tecnología, University of the Basque Country (UPV/EHU), Sarriena s/n, 48940 Leioa, Spain
2. Department of Pharmaceutical Technology and Chemistry, University of Navarra, Irunlarrea 1, 31008 Pamplona, Spain
3. The Navarra Medical Research Institute (IdiSNA), Irunlarrea 3, 31008 Pamplona, Spain
4. Tropical Health Institute of the University of Navarra (ISTUN), University of Navarra, Irunlarrea 1, 31008 Pamplona, Spain
5. Fachbereich Physik, Universität Hamburg, 22761 Hamburg, Germany
6. Physics Department, Faculty of Science, Al-Azhar University, Cairo 11884, Egypt
7. Center for Applied Nanotechnology CAN, Fraunhofer Institute for Applied Polymer Research IAP, 20146 Hamburg, Germany
8. Departamento de Ciencias, Universidad Pública de Navarra, Campus Arrosadía, 31006 Pamplona, Spain
9. Institute for Advanced Materials and Mathematics (INAMAT2), Universidad Pública de Navarra, Campus de Arrosadía, 31006 Pamplona, Spain
10. BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain