1. Center for Micro‐BioRobotics@SSSA Istituto Italiano di Tecnologia Pontedera 56025 Italy
2. INRIA Université Côte d'Azur Sophia Antipolis 06902 France
3. Mines Saint‐Etienne Department of Bioelectronics Centre of Microelectronics in Provence Gardanne F‐13541 France
4. Institute of Solid State Physics Graz University of Technology Graz 8010 Austria