1. H.E.J. Research Institute of Chemistry International Center for Chemical and Biological Sciences University of Karachi Karachi 75270 Pakistan
2. Third World Center for Science and Technology (TWC) H.E.J. Research Institute of Chemistry International Center for Chemical and Biological Sciences University of Karachi Karachi 75270 Pakistan
3. Dr. Panjwani Center for Molecular Medicine and Drug Research (PCMD) International Center for Chemical and Biological Sciences University of Karachi-75270 Karachi Pakistan