1. Department
of Chemistry, University of North Bengal, Darjeeling 734 013, West Bengal, India
2. Department
of Biotechnology, University of North Bengal, Darjeeling 734 013, West Bengal, India
3. Cancer
Biology and Inflammatory Disorder Division, CSIR-Indian Institute of Chemical Biology, 4, Raja S. C. Mullick Road, Kolkata 700032,West
Bengal, India
4. Department
of Colloid Chemistry, St. Petersburg State University, Universitetsky
pr. 26, 198504 St.
Petersburg, Russia
5. Department
of Chemistry and Chemical Technology, Vidyasagar University, Midnapore 721 102, West Bengal, India