1. Department of Pharmaceutical Analytical Chemistry
2. Faculty of Pharmacy
3. Sohag University
4. Sohag 82524
5. Egypt
6. Chemistry Department
7. Faculty of Science
8. Research Centre for Functional Materials
9. National Institute for Materials Science (NIMS)
10. Tsukuba-shi
11. Japan
12. Faculty of Science and Engineering
13. Manchester Metropolitan University
14. Manchester M1 5GD
15. UK