1. Department of Mechanical and Electro-Mechanical Engineering
2. National Sun Yat-Sen University
3. Kaohsiung 80424
4. Taiwan
5. Department of Mechanical Engineering and Berkeley Sensor and Actuator Center
6. University of California
7. Berkeley
8. USA
9. Department of Materials and Optoelectronic Science
10. Center for Functional Polymers and Supramolecular Materials