1. Department of Materials Science and Engineering National Yang‐Ming Chiao Tung University Hsinchu 300 Taiwan, ROC
2. Department of Electrical and Computer Engineering National Chiao Tung University Hsinchu 300 Taiwan
3. Material and Chemical Research Laboratories Industrial Technology Research Institute Hsinchu Taiwan
4. The Ph.D. Program for Neural Regenerative Medicine College of Medical Science and Technology Taipei Medical University No. 250 Wu‐Xing St. Taipei 110 Taiwan, ROC
5. Department of Biomedical Engineering National Yang Ming Chiao Tung University No.155, Sec. 2, Linong St. Taipei 112 Taiwan, ROC
6. Department of Chemical Engineering Stanford University 450 Serra Mall Stanford CA 94305 USA
7. Frontier Research Center on Fundamental and Applied Sciences of Matters National Tsing Hua University Hsinchu 300 Taiwan, ROC
8. School of Dentistry College of Dental Medicine Kaohsiung Medical University Kaohsiung 807 Taiwan, ROC
9. Graduate Institute of Biomedical Science China Medical University Taichung 406 Taiwan, ROC