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Schematic Illustration of the Experimental Designa.
aGO-IONP-PEG was prepared by PEGylation of IONP-deposited GO nanosheets. GO-IONP-PEG was systematically administered into tumor bearing animals. The tumor targeting could be facilitated by an external magnetic field applied to the tumor area. Under photo-irradiation, the GO-IONP-PEG mediated PTT was inflicted on cancer cells. The therapy response was monitored by both T2-weighted MRI and DW-MRI.
