1. Department of Polymers, National Center for Radiation Research and Technology Egyptian Atomic Energy Authority Cairo Egypt
2. Radioactive Isotopes and Generator Department, Hot Labs Center Egyptian Atomic Energy Authority Cairo Egypt
3. Labeled Compounds Department, Hot Labs Center Egyptian Atomic Energy Authority Cairo Egypt
4. Department of Pharmaceutics, Faculty of Pharmacy Sinai University Kantara Egypt
5. Department of Chemistry, Faculty of Science Ain Shams University Cairo Egypt