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. 2018 Jan 1;8(4):1042–1058. doi: 10.7150/thno.22557

Figure 2.

Figure 2

Characterization of OPCNs nanoparticles: (A) X-ray diffraction patterns of oleylamine-coated OPCNs and oleylamine-free OPCNs, respectively; (B) EDX line-scanning profiles of an individual OPCNs; (C) The UV-Vis absorbance spectrum of OPCNs-PEG-FA in the NIR region; (D) Thermogenesis capacity of OPCNs-PEG-FA irradiated by NIR laser with different wave length; (E) The concentration-dependent temperature change of OPCNs-PEG-FA in PBS irradiated by NIR laser (808 nm, 2.4 W/cm2, 5 min); (F) Temperature change of the OPCNs-PEG-FA (200 μg/mL) in PBS over 5 On/Off cycles of NIR laser irradiation; (G) Infrared thermographic images of OPCNs-PEG-FA irradiated with NIR laser; and (H) Concentration-dependent photoacoustic images of OPCNs-PEG-FA irradiated with 808 nm NIR laser in vitro.