Fig. 2
In vitro imaging of ICG-PTX NBs. a Ultrasound images and photoacoustic images of ICG-PTX NBs at different concentrations in vitro. b Fluorescence images of H2O, ICG-PTX NBs and ICG. c Ultrasound images of ICG-PTX NBs before and after destruction. d Imaging intensity quantification of ICG-PTX NBs before and after destruction, *P < 0.05, **P < 0.01. e Ultrasound imaging quantification of ICG-PTX NBs in vitro. f Photoacoustic imaging quantification of ICG-PTX NBs in vitro. g Fluorescence imaging quantification of H2O, ICG-PTX NBs and ICG in vitro, *P < 0.05, **P < 0.01