1. Department of Inorganic Chemistry
2. School of Chemistry
3. Madurai Kamaraj University
4. Madurai 625021
5. India
6. Laser Research Centre
7. Faculty of Health Sciences
8. University of Johannesburg
9. Johannesburg
10. South Africa
11. Biomaterials in Medicinal Chemistry Laboratory
12. Department of Natural Products Chemistry
13. Department of Botany and Microbiology
14. College of Science
15. King Saud University
16. Riyadh 11451
17. Saudi Arabia