Cited by 56Nanoplatforms for cancer theranosticsLuminescence and Fluorescent MaterialsPhotodynamic Therapy Research Studies

Near‐Infrared‐II Fluorophore with Inverted Dependence of Fluorescence Quantum Yield on Polarity as Potent Phototheranostics for Fluorescence‐Image‐Guided Phototherapy of Tumors

Li, Mengyuan, Lu, Zhuoting, Zhang, Jiaxin, Chen, Liying, Tang, Xialian, Jiang, Quanheng, Hu, Qinglian, Li, Lin +2 more·2023·Advanced Materials

Abstract

Organic phototheranostics simultaneously having fluorescence in the second near‐infrared (NIR‐II, 1000–1700 nm) window, and photothermal and photodynamic functions possess great prospects in tumor diagnosis and therapy. However, such phototheranostics generally suffer from low brightness and poor photodynamic performance due to severe solvatochromism. Herein, an organic NIR‐II fluorophore AS1, which possesses an inverted dependence of fluorescence quantum yield on polarity, is reported to serve as potent phototheranostics for tumor diagnosis and therapy. After encapsulation of AS1 into nanostructures, the obtained phototheranostics (AS1 R) exhibit high extinction coefficients (e.g., 68200 L mol−1 cm−1 at 808 nm), NIR‐II emission with high fluorescence quantum yield up to 4.7% beyond 1000 nm, photothermal conversion efficiency of ≈65%, and 1 O 2 quantum yield up to 4.1%. The characterization of photophysical properties demonstrates that AS1 R is superior to other types of organic phototheranostics in brightness, photothermal effect, and photodynamic performance at the same mass concentration. The excellent phototheranostic performance of AS1 R enables clear visualization and complete elimination of tumors using a single and low injection dose. This study demonstrates the merits and prospects of NIR‐II fluorophore with inverted polarity dependence of fluorescence quantum yield as high‐performance phototheranostic agents for fluorescence imaging and phototherapy of tumors.

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Crossref · 10.1002/adma.202209647

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Authors
Li, M., Lu, Z., Zhang, J., Chen, L., Tang, X., Jiang, Q., Hu, Q., Li, L., Liu, J., & Huang, W.
Affiliations
  • Nanjing Tech University (CN)
  • Zhejiang University of Technology (CN)
  • Northwestern Polytechnical University (CN)
Corresponding author
  • Hu, Qinglian
  • Li, Lin
  • Liu, Jie
  • Huang, Wei
Venue
Advanced Materials
Publisher
Wiley
Published
2023-10-09
Volume
35
Issue
45
Pages
e2209647-e2209647
ISSN
  • 0935-9648 (ISSN-L)
  • 1521-4095
OpenAlex
W4384663007
Cited by
56
References
88
Citations by year
2026: 7 · 2025: 24 · 2024: 23 · 2023: 2
FWCI
4.42
Type
journal article
Language
en
Open access
closed
Locations
  • Advanced Materials (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Natural Science Foundation of China (22275087, 22077101)
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Nanoplatforms for cancer theranostics
  • Physical Sciences › Materials Science › Materials Chemistry › Luminescence and Fluorescent Materials
  • Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Photodynamic Therapy Research Studies
Keywords
fluorescence quantum yield, phototheranostics, photothermal therapy, photodynamic therapy, singlet oxygen generation, tumor imaging, nanoencapsulation
MeSH terms
Theranostic Nanomedicine, Fluorescence, Fluorescent Dyes, Humans, Neoplasms, Phototherapy, Cell Line, Tumor, Nanoparticles

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