1. Electronic Materials Department, Advanced Technology and New Materials Research Institute, City of Scientific Research and Technological Applications (SRTA-City) , New Borg El-Arab City , Alexandria , Egypt ;
2. Department of Materials Science, Institute of Graduate Studies and Research, Alexandria University , El-Shatby , Alexandria , Egypt ;
3. European Egyptian Pharmaceutical Industries (EEPI) , El Ameriya , Alexandria , Egypt ;
4. Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy and Drug Manufacturing, Pharos University , Alexandria , Egypt