1. Research & Development Institute of Northwestern Polytechnical University in Shenzhen
2. Shenzhen 518000
3. China
4. Key Laboratory of Micro/Nano Systems for Aerospace of Ministry of Education
5. Northwestern Polytechnical University
6. Xi'an
7. Department of Burn and Plastic Surgery
8. Tangdu Hospital
9. Air Force University
10. Xi'an 710038