1. Applied Mechanics
of Materials Laboratory, Department of Mechanical Engineering Temple University, 1947 North 12th Street, Philadelphia, Pennsylvania 19122, United States
2. School of Biomedical Engineering Science
and Health Systems, Drexel University, Philadelphia, Pennsylvania 19104, United States
3. Center of Smart Interfaces, Technische Universität Darmstadt, Alarich-Weiss-Straße 10, 64287 Darmstadt, Germany