1. Laboratory for Soft Machines & ElectronicsSchool of PackagingMichigan State University East Lansing MI 48824 USA
2. Department of Mechanical EngineeringMichigan State University East Lansing MI 48824 USA
3. Department of Electrical & Computer EngineeringMichigan State University East Lansing MI 48824 USA
4. Department of Civil and Environmental EngineeringMichigan State University East Lansing MI 48824 USA