1. Nanobioelectronics
and Biosensors
Group, Catalan Institute of Nanotechnology, Campus de la UAB, 08193, Bellaterra, Barcelona, Spain
2. Department of Chemistry, Universitat Autònoma de Barcelona, 08193, Bellaterra,
Barcelona, Spain
3. Department
of Biochemistry and
Molecular Biology, Tulane University School of Medicine, New Orleans, Louisiana 70112, United States
4. ICREA, Barcelona,
Spain