1. International and Interuniversity Centre for Nanoscience and Nanotechnology Mahatma Gandhi University Kottayam Kerala India
2. Department of Chemistry TKM College of Engineering Kollam Kerala India
3. Department of Chemistry MES College Aluva Kerala India
4. Carmelgiri College Idukki Kerala India
5. Department of Chemistry Amritha Vishwa Vidyapeetham Kollam Kerala India
6. Instituto de Alta Investigación, CEDENNA, Universidad de Tarapacá Arica Chile
7. School of Energy Materials Mahatma Gandhi University Kottayam Kerala India