1. Institute of Materials Science of Barcelona (ICMAB-CSIC), Campus UAB s/n, 08193Bellaterra, Spain
2. Department de Biologia Cel·lular, Fisiologia i Immunologia. Universtitat Autònoma de Barcelona (UAB), Campus UAB s/n, 08193Bellaterra, Spain
3. ALBA Synchrotron Light Source, 08290Cerdanyola del Vallés, Spain
4. Department of Inorganic and Organic Chemistry, Barcelona University, Martí i Franquès 1-11, 08028Barcelona, Spain
5. Institute of Nanoscience and Nanotechnology (IN2UB), Barcelona University, Campus UB s/n, 08028Barcelona, Spain
6. Department de Química, Universtitat Autònoma de Barcelona (UAB), Campus UAB s/n, 08193Bellaterra, Spain