1. LEITAT Technological Center, C/de la Innovació 2, 08225 Terrassa (Barcelona), Spain
2. Centre for NanoBioSafety and Sustainability (CNBSS), 08193 Bellaterra (Barcelona), Spain
3. Catalan Institute of Nanoscience and Nanotechnology (ICN2), Campus de la UAB, Edifici CM3, 08193 Bellaterra (Barcelona), Spain