Cited by 215Luminescence and Fluorescent MaterialsOptical Imaging and Spectroscopy TechniquesMolecular Sensors and Ion Detection

Polymethine Thiopyrylium Fluorophores with Absorption beyond 1000 nm for Biological Imaging in the Second Near-Infrared Subwindow

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Ding, Bingbing, Xiao, Yuling, Zhou, Hui, Zhang, Xiao, Qu, Chunrong, Xu, Fuchun, Deng, Zixin, Cheng, Zhen +1 more·2019·Journal of Medicinal Chemistry

Abstract

Small-molecule fluorescence imaging in the second near-infrared (NIR-II, 1000-1700 nm) window has gained increasing interest in clinical application. Till now, very few studies have been exploited in the small-molecule fluorophores with both excitation and emission in the NIR-II window. Inspired by the indocyanine green structure, a series of polymethine dyes with both absorption and emission in the NIR-II window have been developed for NIR-II imaging, providing the feasibility to directly compare optical imaging in the NIR-IIa (1300-1400 nm) subwindow under 1064 nm excitation with that in the NIR-II window under 808 nm excitation. The signal-background ratio and the tumor-normal tissue ratio achieved great improvement under 1064 nm excitation in the imaging of mouse blood pool and U87 glioma tumors. Our study not only introduces a broadband emission fluorophore for both NIR-II and NIR-IIa imaging, but also reveals the advantages of NIR-II excitation over NIR-I in in vivo imaging.

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Crossref · 10.1021/acs.jmedchem.8b01682

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Authors
Ding, B., Xiao, Y., Zhou, H., Zhang, X., Qu, C., Xu, F., Deng, Z., Cheng, Z., & Hong, X.
Affiliations
  • Wuhan University (CN)
  • Stanford University (US)
  • Tibet University (CN)
Corresponding author
Hong, Xuechuan
Venue
Journal of Medicinal Chemistry
Published
2018-12-02
Volume
62
Issue
4
Pages
2049-2059
ISSN
  • 0022-2623 (ISSN-L)
  • 1520-4804
OpenAlex
W2902088541
Cited by
215
References
36
Citations by year
2026: 15 · 2025: 21 · 2024: 28 · 2023: 22 · 2022: 34 · 2021: 33 · 2020: 43 · 2019: 19
FWCI
8.87
Type
journal article
Language
en
Open access
Locations
  • Journal of Medicinal Chemistry (publishedVersion)
  • PubMed (publishedVersion)
  • OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (submittedVersion)
Funders
  • National Cancer Institute (P50 CA114747)
  • Ministry of Education of the People's Republic of China
  • Natural Science Foundation of Jiangsu Province (BK20160387)
  • Office of Science
  • U.S. Department of Energy (DE-SC0008397)
  • China Scholarship Council
  • National Natural Science Foundation of China (81573383, 81773674, 21390402)
  • Hubei Province Engineering and Technology Research Center for Fluorinated Pharmaceuticals
  • Shenzhen Municipality (JCYJ20170303170809222)
  • Scientifc and Technologic Council of Suzhou (SYG201521)
  • Hubei Province (2017CFA024, 2017CFB711, 2016ACA126)
Topics
  • Physical Sciences › Materials Science › Materials Chemistry › Luminescence and Fluorescent Materials
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Optical Imaging and Spectroscopy Techniques
  • Physical Sciences › Chemistry › Spectroscopy › Molecular Sensors and Ion Detection
Keywords
polymethine dyes, NIR-II imaging, small-molecule fluorophores, 1064 nm excitation, 808 nm excitation, blood pool imaging, U87 glioma, tumor imaging, signal-to-background ratio
MeSH terms
Density Functional Theory, Animals, Female, Fluorescence, Fluorescent Dyes, Heterocyclic Compounds, 2-Ring, Humans, Mice, Inbred BALB C, Mice, Inbred C57BL, Mice, Nude, Models, Chemical, Neoplasms, Neovascularization, Pathologic, Integrin alphaVbeta3, Cell Line, Tumor, Small Molecule Libraries, Optical Imaging

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