cancers Review Magnetic Nanoparticles—A Multifunctional Potential Agent for Diagnosis and Therapy Raghuraj Singh Chouhan 1,* , Milena Horvat 1, Jahangeer Ahmed 2 , Norah Alhokbany 2, Saad M. Alshehri 2,* and Sonu Gandhi 3,4,* 1 Department of Environmental Sciences, Jožef Stefan Institute...