Cited by 658Luminescence and Fluorescent MaterialsMolecular Sensors and Ion DetectionOptical Imaging and Spectroscopy Techniques

An Efficient 1064 nm NIR‐II Excitation Fluorescent Molecular Dye for Deep‐Tissue High‐Resolution Dynamic Bioimaging

Li, Benhao, Lu, Lingfei, Zhao, Mengyao, Lei, Zuhai, Zhang, Fan·2018·Angewandte Chemie International Edition

Abstract

A small‐molecule fluorophore FD‐1080 with both excitation and emission in the NIR‐II region has been successfully synthesized for in vivo imaging. A heptamethine structure is designed to shift the absorption and emission into NIR‐II region. Sulphonic and cyclohexene groups are introduced to enhance its water solubility and stability. The quantum yield of FD‐1080 is 0.31 %, and can be increased to 5.94 % after combining with fetal bovine serum (FBS). Significantly, 1064 nm NIR‐II excitation was demonstrated with the high tissue penetration depth and superior imaging resolution compared to previously reported NIR excitation from 650 nm to 980 nm. FD‐1080 is not only capable of realizing non‐invasive high‐resolution deep‐tissue hindlimb vasculature and brain vessel bioimaging, but also quantifying the respiratory rate based on the dynamic imaging of respiratory craniocaudal motion of the liver for the awake and anaesthetized mouse.

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Crossref · 10.1002/anie.201801226

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Authors
Li, B., Lu, L., Zhao, M., Lei, Z., & Zhang, F.
Affiliations
Fudan University (CN)
Corresponding author
Zhang, Fan
Venue
Angewandte Chemie International Edition
Publisher
Wiley
Published
2018-03-24
Volume
57
Issue
25
Pages
7483-7487
ISSN
  • 1433-7851 (ISSN-L)
  • 1521-3773
OpenAlex
W2793078295
Cited by
658
References
32
Citations by year
2026: 42 · 2025: 53 · 2024: 67 · 2023: 86 · 2022: 89 · 2021: 95 · 2020: 119 · 2019: 82 · 2018: 24
FWCI
29.85
Type
journal article
Language
en
Open access
closed
Locations
  • Angewandte Chemie International Edition (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Natural Science Foundation of China (21725502)
  • Ministry of Science and Technology of the People's Republic of China (2017YFA0207303)
  • Science and Technology Commission of Shanghai Municipality (17JC1400100)
Topics
  • Physical Sciences › Materials Science › Materials Chemistry › Luminescence and Fluorescent Materials
  • Physical Sciences › Chemistry › Spectroscopy › Molecular Sensors and Ion Detection
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Optical Imaging and Spectroscopy Techniques
Keywords
NIR-II fluorescence, 1064 nm excitation, small-molecule fluorophores, deep tissue imaging, water-soluble dyes, quantum yield enhancement
MeSH terms
Animals, Blood Vessels, Fluorescent Dyes, Hindlimb, Mice, Nude, Solubility, Tissue Distribution, Water, Spectroscopy, Near-Infrared, Mice, Molecular Imaging

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