1. Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beihang University, Beijing 100191, P. R. China.
2. Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100191, P. R. China.
3. School of Mechanical Engineering and Automation, Beihang University, Beijing 100191, P. R. China.
4. School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, P. R. China.
5. Leitung Corporate Bionic Department, Festo AG & Co. KG, Esslingen 73734, Germany.
6. International Research Institute for Multidisciplinary Science, Beihang University, Beijing 100191, P. R. China.
7. Research Institute of Frontier Science, Beihang University, Beijing 100191, P. R. China.