1. Institute of Chemistry, Martin Luther University Halle-Wittenberg, Kurt Mothes Str. 2, D-06120, Halle, Saale, Germany
2. Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt
3. Shaanxi International Research Center for Soft Matter, State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an, 710049, P. R. China