1. Prof. Rajendra Singh Nanoscience and Nanotechnology Centre, Department of Chemistry, D. S. B. Campus, Kumaun University, Nainital-263001, Uttarakhand, India
2. Department of Pharmacology, AIIMS, Bathinda, Punjab, India
3. University of Petroleum & Energy Studies (UPES), School of Engineering, Department of Chemistry, Energy Acres, Bidholi, Dehradun 248007, India