Schematic illustration of the 8 most reported nanocarriers: (I) liposomes, (II) micelles, (III) dendrimers, (IV) meso-porous silica nanoparticles (MSNs), (V) gold nanoparticles (AuNPs), (VI) super paramagnetic iron oxide nanoparticles (SPIONs), (VII) carbon nanotubes (CNTs), and (VIII) quantum dots (QDs). Reproduced with permission [193]. Copyright 2019, Elsevier.