TF and cancer: CM‐TF was then coated onto the surface of SPN to create the photothermal conversion agent SPN‐TF, capable of targeting cancer.[97] Furthermore, Tf has also been used to deliver iron effectively.[98] For instance, Liu and co‐workers prepared GCMNs expressing Tf and encapsulated IR820–dihydroartemisinin NPs (IR820–DHA) to construct Tf@IR820–DHA (Figure12A), which targets tumor tissue in vivo.