Fig. 3
From: Quasi-dendritic sulfonate-based organic small molecule for high-quality NIR-II bone-targeted imaging
a, b NIR-II FI of BALB/c mice at 12 h post-injection using TTQF-SO3. White dotted box: soft tissue. Imaging parameters: 1300 filter, exposure 3000 ms. c Spine-soft tissue fluorescence ratio of TTQF-SO3 and TTQF NPs at different time-point. d FL intensity analysis of the red line in a. e FL intensity analysis of the yellow line in a. f NIR-II FI of the whole skeletal system using TTQF-SO3. g–n Stereomicroscope NIR-II FI of some pivotal skeletal system using TTQF-SO3. Imaging parameters: 1300 filter, exposure 500 ms. Error bars, mean ± SD (n = 3)