Dr. Ayman A. Ibrahim is a visiting postdoctoral scholar at McMaster University under the supervision of Dr. Saman Sadeghi. Ayman finished his Ph.D in Pharmacology & Toxicology at Faculty of Pharmacy, Cairo University, Egypt (2019). He also received his master’s degree in 2016 from Zagazig University, Egypt. Noteworthy, he has a strong experience in Quality control, Quality assurance, GMP and production of 99Mo/99mTc, 131I, 125I & 51Cr radiopharmaceuticals.  Generally, his main scientific interests are pharmacodynamics and pharmacokinetics of novel radiopharmaceuticals used in diagnosis and therapy & development of new treatment strategies against multiple diseases induced by ionizing radiation.