1. Department of Neurosurgery the Affiliated Lihuili Hospital of Ningbo University Ningbo 315040 P. R. China
2. Key Laboratory of Bio‐based Polymeric Materials Technology and Application of Zhejiang Province Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo 315201 P. R. China
3. University of Chinese Academy of Sciences Beijing 100049 P. R. China
4. Beijing Advanced Innovation Center for Materials Genome Engineering School of Materials Science and Engineering University of Science and Technology Beijing Beijing 100083 P. R. China
5. Department of Mechanical Engineering Massachusetts Institute of Technology Cambridge MA 02139–4307 USA
6. Department of Chemical Engineering and Applied Chemistry Chungnam National University Yoo‐Seong 34134 Republic of Korea