1. Department of Polymer Science and Rubber Technology, Cochin University of Science and Technology, Kochi 682022, Kerala, India
2. Inter University Centre for Nanomaterials and Devices (IUCND), Cochin University of Science and Technology, Kochi 682022, Kerala, India
3. Department of Chemistry and Centre for Research, St. Teresa’s College, Ernakulam 682011, Kerala, India
4. Institute for NanoScale Science and Technology, Medical Device Research Institute, College of Science and Engineering, Flinders University, South Australia 5042, Australia
5. Naval Physical and Oceanographic Laboratory, Kochi 682021, Kerala, India