1. School of Mechanical Engineering and Automation and Center of Soft Matter Physics and its Applications
2. Beihang University
3. Beijing 100191
4. P.R. China
5. Department of Physics and Astronomy
6. Department of Materials Science and Engineering
7. University of Pennsylvania
8. Philadelphia
9. USA
10. State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
11. Department of Physics and Electronics
12. Complex Assemblies of Soft Matter
13. CNRS-Solvay-UPenn UMI 3254
14. Bristol