Affiliation: | aBioorganic Laboratory, Department of Chemistry, University of Delhi, Delhi 110 007, India bCFEES, Brig. S.K. Mazumdar Road, Timarpur, Delhi 110 054, India cDepartment of Microbiology, University of Delhi South Campus, New Delhi 110 067, India dChemistry Department, Royal Veterinary and Agricultural University, DK-1871 Frederiksberg C, Copenhagen, Denmark |