1. Department of Chemistry & Centre for Advanced Studies in Chemistry, Panjab University, Sector-14, Chandigarh 160014, India
2. Central Scientific Instruments Organisation, Chandigarh 160017, India
3. Department of Applied Sciences, University Institute of Engineering & Technology (U.I.E.T.), Panjab University, Sector-25, Chandigarh 160014, India
4. Centre for Nanoscience & Nanotechnology, Panjab University, Sector-25, Chandigarh 160014, India
5. Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER), Sector-67, S.A.S. Nagar, Mohali, Punjab 160062, India