Fig. 1From: A microenvironment-responsive FePt probes for imaging-guided Fenton-enhanced radiotherapy of hepatocellular carcinomaCharacterization of the synthesized FePt nanoprobes. a, b TEM images of FePt nanoprobes before (a) and after (b) PEGlyation. c Elements mapping of FePt nanoprobes (upper left: HAADF, upper right: Pt, lower left: Pt, lower right: merge). d XRD pattern of FePt nanoprobes. Red arrow-marked peaks belong to PEG. e The FTIR spectra of the bare FePt nanoprobes (black), mPEG-SH (red), and PEGylated FePt nanoprobes (blue). f ICP-OES data of FePt nanoprobes quantifying metal ratiosBack to article page