1. Institute of Pharmaceutical Chemistry, Marburg, Germany.

2. Technical Institute of Physics and Chemistry, Beijing, China.

3. Centre Glass and Ceramics Research Institute, Kolkata, India.

4. University of Wisconsin, USA.

5. University of Johannesburg, South Africa.

6. University of Zululand, South Africa.

7. Central Drug Research Institute, India.

8. Indian Institute of Chemical Technology, India.

9. Karlsruhe Institute of Technology (KIT), Germany.

10. International Centre for Materials Science, Bangalore, India.

11. Institute of Process Engineering, Chinese Academy of Sciences, Beijing, China.

12. The University of Mississippi, USA.