TF and cancer: Fig. 8 shows a significant decrease in the tumor weight in the TF + AMF group compared with the PBS + AMF group, which is similar to the tumor volume trend obtained. This indicates the importance of the tumor-targeted nano-delivery vehicle, which was efficiently obtained from the cancer cell membrane due to its inherent tumor targeting ability that resulted in high accumulation of Fe nanorings in the tumor.39 It was also achieved due to the heating ability of Fe nanorings under an AMF, thereby increasing the tumor temperature and facilitating efficient tumor ablation.