1. Department of Chemistry & Centre of Advanced Studies in Chemistry
2. Panjab University
3. Chandigarh-160 014
4. India
5. Department of Biotechnology
6. National Agri-Food Biotechnology Institute
7. Mohali 160071
8. School of Chemistry
9. University of Bristol
10. Bristol
11. UK
12. Howard University
13. Department of Chemistry
14. Washington
15. USA