1. Research and Post Graduate Department of Chemistry & Polymer Chemistry; Devaswom Board College; Sasthamcotta, Kollam Kerala 690521 India
2. Centre for Nanoscience and Nanotechnology, Mahatma Gandhi University; Priyadarshini Hills PO Kottayam Kerala India
3. School of Chemical Sciences; Mahatma Gandhi Unversity, Priyadarshini Hills P.O; Kottayam Kerala India
4. Postgraduate and Research Department of Chemistry; Mar Thoma College; Thiruvalla Kerala India
5. Beijing University of Chemical Technology, China; Beijing 100029 People's Republic of China