Fig. 2
A Temperature elevation curves of Au@FePt NPs (100 ppm) under different laser powers. B Temperature changes curve of Au@FePt NPs (100 ppm) in different concentrations during 5 min laser irradiation at 1.2 W/cm2. C Multiple heating cycles of Au@FePt NPs (100 ppm) (orange plot) and DI water (blue plot). D The relationship between the first cooling time and the negative natural logarithm of the temperature-driving force was calculated from Au@FePt nanoparticles. E In vitro T1 and T2 signal-to-background (SBR) of Au@FePt in different concentration. F T1 and T2 SBR of Au@FePt nanoprobes incubated at various pH. G Methylene blue (MB) (10 μg/mL) degraded by ·OH generated from Au@FePt nanoprobes (Fe concentration: 100 µg/mL) and different concentrations of H2O2 (0, 2, 4, 8, and 10 mM). H MB absorbance after incubation with Au@FePt nanoprobes on the production of ·OH, with gradient Fe concentrations (0, 10, 20, 40, 80, 100 μg/mL) and H2O2 (10 mM) was measured. I MB fluorescence spectra after incubation with various concentrations of Au@FePt nanoprobes (0, 10, 20, 40, 80, 100 μg/mL) and H2O2 (10 mM) were measured