1. Human Technology Research Institute, National Institute of Advanced Industrial Science and Technology, Central 6, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan
2. School of Materials Science and Engineering, South China University of Technology, Guangzhou 510641, People's Republic of China
3. Human Technology Research Institute, National Institute of Advanced Industrial Science and Technology, Namiki1-2-1, Tsukuba, Ibaraki 305-8564, Japan
4. National Engineering Research Center for Tissue Restoration and Reconstruction, Guangzhou 510006, People's Republic of China