1. Department of Electrical and Computer Engineering Texas A&M University College Station TX USA
2. Korea Institute of Machinery and Materials Daegu Research Center for Medical Devices and Rehabilitation Daegu South Korea
3. Boyce Thompson Institute Ithaca NY USA
4. Department of Biochemistry and Biophysics Texas A&M University College Station TX USA
5. Department of Biomedical Engineering Texas A&M University College Station TX USA