Cited by 1,778Optical Imaging and Spectroscopy TechniquesNanoplatforms for cancer theranosticsLuminescence and Fluorescent Materials

A small-molecule dye for NIR-II imaging

Antaris, Alexander L., Chen, Hao, Cheng, Kai, Sun, Yao, Hong, Guosong, Qu, Chunrong, Diao, Shuo, Deng, Zixin +8 more·2016·Nature Materials

Abstract

Fluorescent imaging of biological systems in the second near-infrared window (NIR-II) can probe tissue at centimetre depths and achieve micrometre-scale resolution at depths of millimetres. Unfortunately, all current NIR-II fluorophores are excreted slowly and are largely retained within the reticuloendothelial system, making clinical translation nearly impossible. Here, we report a rapidly excreted NIR-II fluorophore (∼90% excreted through the kidneys within 24 h) based on a synthetic 970-Da organic molecule (CH1055). The fluorophore outperformed indocyanine green (ICG)-a clinically approved NIR-I dye-in resolving mouse lymphatic vasculature and sentinel lymphatic mapping near a tumour. High levels of uptake of PEGylated-CH1055 dye were observed in brain tumours in mice, suggesting that the dye was detected at a depth of ∼4 mm. The CH1055 dye also allowed targeted molecular imaging of tumours in vivo when conjugated with anti-EGFR Affibody. Moreover, a superior tumour-to-background signal ratio allowed precise image-guided tumour-removal surgery.

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Crossref · 10.1038/nmat4476

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Authors
Antaris, A. L., Chen, H., Cheng, K., Sun, Y., Hong, G., Qu, C., Diao, S., Deng, Z., Hu, X., Zhang, B., Zhang, X., Yaghi, O. K., Alamparambil, Z. R., Hong, X., Cheng, Z., & Dai, H.
Affiliations
  • Wuhan University (CN)
  • Stanford Medicine (US)
  • Stanford University (US)
Corresponding author
  • Hong, Xuechuan
  • Cheng, Zhen
  • Dai, Hongjie
Venue
Nature Materials
Published
2015-11-23
Volume
15
Issue
2
Pages
235-242
ISSN
  • 1476-1122 (ISSN-L)
  • 1476-4660
OpenAlex
W2261575366
Cited by
1,778
References
1
Citations by year
2026: 135 · 2025: 170 · 2024: 194 · 2023: 189 · 2022: 197 · 2021: 220 · 2020: 223 · 2019: 183 · 2018: 156 · 2017: 80 · 2016: 29
FWCI
71.60
Type
journal article
Language
en
Open access
closed
Locations
  • Nature Materials (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Cancer Institute (U54CA119367)
Topics
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Optical Imaging and Spectroscopy Techniques
  • Physical Sciences › Engineering › Biomedical Engineering › Nanoplatforms for cancer theranostics
  • Physical Sciences › Materials Science › Materials Chemistry › Luminescence and Fluorescent Materials
Keywords
NIR-II fluorescence imaging, small-molecule dyes, renal excretion, lymphatic imaging, sentinel lymph node mapping, brain tumor imaging, tumor-to-background ratio, affibody, reticuloendothelial system clearance
MeSH terms
Animals, Benzopyrans, Carcinoma, Squamous Cell, Diagnostic Imaging, Female, Fluorescent Dyes, Humans, Indoles, Male, Mice, Inbred BALB C, Mice, Inbred C57BL, Neoplasms, Experimental, Phenylpropionates, Thiadiazoles, Spectroscopy, Near-Infrared, Cell Line, Tumor, Mice

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