Amphiphilic Polymer-Modified Uniform CuFeSe₂ Nanoparticles for CT/MR Dual-Modal Imaging

Figure 3

(a) Cytotoxicity studies on 4T1, A549, and human normal liver cells after 24 h incubation with mPEG-PCL@CuFeSe₂ NPs at different concentrations. (b) Representative H&E stained images of major organs including the heart, liver, spleen, lung, and kidney collected from the tumor-bearing mice at various timepoints after the injection of mPEG-PCL@CuFeSe₂ NPs, in comparison with those of healthy mice. No obvious organ damage or lesions were observed after treatment.

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