1. Soft and Printed Microelectronics LabInstitute of Systems and RoboticsUniversity of Coimbra Coimbra 3030‐290 Portugal
2. CEMMPRE – Department of Chemical EngineeringUniversity of Coimbra Coimbra 3030‐290 Portugal
3. Integrated Soft Materials LabDepartment of Mechanical EngineeringCarnegie Mellon University Pittsburgh PA 15213 USA