Fig. 4From: Holothurian triterpene glycoside cucumarioside A2-2 induces macrophages activation and polarization in cancer immunotherapyFluorescent labeled MnMEIO-mPEG-CyTE777 nanoparticles (NIR-NPs) development [39]. (A) Schematic presentation showing the structure of MnMEIO-mPEG-CyTE777 nanoparticles. (B) TEM image showing the spherical and monodispersed morphology of NIR-NPs. Scale bar, 50Â nm. (C) Number-average diameters of NIR-NPs as determined by dynamic light scattering (DLS). (D) Synthesis of MnMEIO-mPEG nanoparticles and introduction of a near-infrared fluorescent probe, CyTE777, into the structure of MnMEIO-mPEG nanoparticlesBack to article page