1. Institute of Chemistry
2. Martin Luther University Halle-Wittenberg
3. 06120 Halle
4. Germany
5. State Key Laboratory for Mechanical Behaviour of Materials
6. Shaanxi International Research Center for Soft Matter
7. Xi’an Jiaotong University
8. Xi’an 710049
9. P. R. China
10. Department of Materials Science and Engineering
11. University of Sheffield
12. Sheffield S1 3JD
13. UK