1. Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
2. Nanobiotechnology Unit, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
3. Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11495, Saudi Arabia
4. Central Lab, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
5. King Abdullah Institute for Nanotechnology, King Saud University, Riyadh 11495, Saudi Arabia
6. Nanomaterials and Nanotechnology Department, Central Metallurgical Research and Development Institute (CMRDI), Helwan, Cairo 11865, Egypt