[Retracted] Multifunctional Drug-Loaded Phase-Change Nanoparticles Inhibit the Epithelial-Mesenchymal Transition of Hepatocellular Carcinoma by Affecting the Activity of Activated Hepatic Stellate Cells

Figure 7

Phase-transformation imaging and enhanced ultrasound imaging of PPL NPs in vitro. (a) Light microscope images of phase transformation by LIFU irradiation. (b) Ultrasound images (B-mode and CEUS mode) of PPL NPs after being irradiated by LIFU under different conditions. (c) The corresponding grayscale intensity at different intensities and times of 2D imaging and CEUS imaging.

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