1. Chirantan Gayen, Srestha Basu, Prof. Anumita Paul Department of ChemistryIndian Institute of Technology Guwahati Guwahati 781039, Assam India
2. Upashi Giswami and Kasturi Gogoi Centre for NanotechnologyIndian Institute of Technology Guwahati Guwahati 781039, Assam India