Ahmad, Mohammad Yaseen received his Ph.D. in Chemistry from the Kyungpook National University (KNU), South Korea in 2020. His research interests have focused on the synthesis, characterization and application of lanthanide nanomaterials for the targeting, diagnosis and therapy of tumors. He continues his career as a postdoctoral research (Postdoc) fellow at KNU in the group of Prof. Lee. His current research involves Tb3+/Eu3+/Dy3+ doping/mixing Ln2O3 and Ln@Ln2O3 core-shell nanoparticles for MRI and fluorescent imaging.