1. Colloid Chemistry Laboratory, Department of Chemistry, The University of Burdwan, Golapbag, Burdwan-713104, West Bengal, India
2. Integrated Science Education and Research Centre, Siksha Bhavana, Visva-Bharati University, Santiniketan-731235, India
3. Department of Chemistry, Sidho-Kanho-Birsha University, Purulia 723104, India
4. Department of Chemistry, School of Sciences, Kalyani Regional Centre, Netaji Subhas Open University, West Bengal, India