Cited by 216Luminescence and Fluorescent MaterialsMolecular Sensors and Ion DetectionOptical Imaging and Spectroscopy Techniques

Bright and Stable NIR‐II J‐Aggregated AIE Dibodipy‐Based Fluorescent Probe for Dynamic In Vivo Bioimaging

Zhang, Qisong, Yu, Peng, Fan, Yong, Sun, Caixia, He, Haisheng, Liu, Xuan, Lu, Lingfei, Zhao, Mengyao +2 more·2021·Angewandte Chemie International Edition

Abstract

Organic dyes emitting in the second near‐infrared (NIR‐II, 900–1700 nm) window, with high molar extinction coefficients (MEC) and quantum yields (QY) in aqueous, are essential for in vivo bioimaging and biosensing. In this work, we developed a dibodipy‐based aggregation‐induced emission (AIE) fluorescent probe, THPP, to meet this aim. THPP exhibits a high MEC and has intensified absorption and emission in J‐aggregated state, which significantly enhance the fluorescence intensity (≈55 folds) and extend the maximal absorption/emission wavelengths to 970/1010 nm in NIR‐II region. Based on the bright THPP, imaging with a high frame rate (34 frames per second) at a deep “valid penetration depth” up to 6 mm can be achieved. This enabled simultaneous and dynamic imaging of vasculatures and deep tissues. Besides, we succeeded in monitoring the respiratory rate of acute‐lung‐injury mice and tracing the collateral circulation process with a high frame rate.

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Crossref · 10.1002/anie.202012427

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Authors
Zhang, Q., Yu, P., Fan, Y., Sun, C., He, H., Liu, X., Lu, L., Zhao, M., Zhang, H., & Zhang, F.
Affiliations
Fudan University (CN)
Corresponding author
  • Fan, Yong
  • Zhang, Fan
Venue
Angewandte Chemie International Edition
Publisher
Wiley
Published
2020-12-23
Volume
60
Issue
8
Pages
3967-3973
ISSN
  • 1433-7851 (ISSN-L)
  • 1521-3773
OpenAlex
W3088121390
Cited by
216
References
101
Citations by year
2026: 22 · 2025: 38 · 2024: 33 · 2023: 34 · 2022: 55 · 2021: 32 · 2020: 1
FWCI
11.86
Type
journal article
Language
en
Open access
closed
Locations
  • Angewandte Chemie International Edition (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Natural Science Foundation of China (21725502, 51961145403, 21904023, 21908030)
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
aggregation-induced emission, J-aggregation, second near-infrared window, in vivo imaging, deep tissue imaging, vascular imaging, acute lung injury, respiratory rate estimation, collateral circulation, ultrafast imaging, molar absorptivity
MeSH terms
Animals, Biocompatible Materials, Cerebral Veins, Fluorescent Dyes, Micelles, Propiophenones, Quantum Theory, Spectroscopy, Near-Infrared, Mice, Nanoparticles, Acute Lung Injury, Signal-To-Noise Ratio, Optical Imaging

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