1. Instituto de Microelectrónica de Barcelona (IMB-CNM, CSIC), Bellaterra (Barcelona) 08193, Spain
2. Nanobiotechnology for diagnostics (Nb4D), Department of Chemical and Biomolecular Nanotechnology, Institute for Advanced Chemistry of Catalonia (IQAC, CSIC), Barcelona 08034, Spain
3. Departament de Química, Universitat Autònoma de Barcelona, Bellaterra (Barcelona) 08193, Spain
4. Division of Nanobiotechnology, Department of Protein Science, Science for life laboratory, KTH Royal Institute of Technology, Stockholm 17165, Sweden
5. Departament of Genetics and Microbiology, Universitat Autònoma de Barcelona, Bellaterra (Barcelona) 08193, Spain
6. CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN), Barcelona 08034, Spain