1. Nanoscale Bioelectric Characterization Group Institute for Bioengineering of Catalunya (IBEC), The Barcelona Institute of Science and Technology (BIST) Baldiri i Reixac 15‐21 Barcelona 08028 Spain
2. Center for Nano Science and Technology Instituto Italiano di Tecnologia Via Pascoli, 70/3 Milano 20133 Italy
3. Department of Electronics and Biomedical Engineering Universitat de Barcelona Martí i Franqués, 1 Barcelona 08028 Spain