Figure 2 | Scientific Reports

Figure 2

From: Near-infrared induced phase-shifted ICG/Fe3O4 loaded PLGA nanoparticles for photothermal tumor ablation

Figure 2

(a,b) SEM images of Fe3O4/ICG@PLGA/PFP NPs (a) 10000×; scale bar, 2 μm; (b) 70000×; scale bar, 200 nm); (c) TEM image of Fe3O4/ICG@PLGA/PFP NPs with a large amount of black Fe3O4 NPs embedded in the spherical shell (70000×; scale bar, 200 nm); (d) size distribution of Fe3O4/ICG@PLGA/PFP NPs with the average diameter of 289.6 ± 67.4 nm; (e) UV-Vis-NIR absorption spectra of Fe3O4/ICG@PLGA/PFP NPs, free ICG and Fe3O4 NPs.

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