1. Prof. Rajendra Singh Nanoscience and Nanotechnology Centre, Department of Chemistry, D.S.B. Campus, Kumaun University, Nainital-263002, Uttarakhand, India
2. University of Petroleum and Energy Studies (UPES), School of Engineering, Energy Acres, Bidholi, Dehradun-248007, India
3. Polygel Innovations Pte Ltd, Singapore