1. Functional Polymers, Empa, Swiss Federal Laboratories for Materials Science and Technology, 8600 Dübendorf, Switzerland
2. Soft Robotics Lab, ETH Zürich, Tannenstrasse 3, 8092 Zürich, Switzerland
3. Ecole Polytechnique Fédérale de Lausanne (EPFL), Institut des Matériaux, Station 12, CH 1015 Lausanne, Switzerland