Cited by 135Quantum Dots Synthesis And PropertiesCarbon and Quantum Dots ApplicationsNanoplatforms for cancer theranostics

Au‐Doped Ag2Te Quantum Dots with Bright NIR‐IIb Fluorescence for In Situ Monitoring of Angiogenesis and Arteriogenesis in a Hindlimb Ischemic Model

Yang, Hongchao, Huang, Haoying, Ma, Xiang, Zhang, Yejun, Yang, Xiaohu, Yu, Mengxuan, Sun, Ziqiang, Li, Chunyan +2 more·2021·Advanced Materials

Abstract

Fluorescence located in 1500–1700 nm (denoted as the near‐infrared IIb window, NIR‐IIb) has drawn great interest for bioimaging, owing to its ultrahigh tissue penetration depth and spatiotemporal resolution. Therefore, NIR‐IIb fluorescent probes with high photoluminescence quantum yield (PLQY) and stability along with high biocompatibility are urgently pursued. Herein, a novel NIR‐IIb fluorescent probe of Au‐doped Ag 2 Te (Au:Ag 2 Te) quantum dots (QDs) is developed via a facile cation exchange method. The Au dopant concentration in the Ag 2 Te QDs is tunable from 0% to 10% by controlling the ratio of supplied Au precursor to Ag 2 Te QDs, resulting in a wide range of PL emission in the NIR‐IIb window and a much‐enhanced PL intensity. After surface modification, the Au:Ag 2 Te QDs possess bright NIR‐IIb emission, high colloidal stability and photostability, and decent biocompatibility. Further, in vivo monitoring of the process of angiogenesis and arteriogenesis in an ischemic hindlimb is successfully performed.

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Crossref · 10.1002/adma.202103953

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Authors
Yang, H., Huang, H., Ma, X., Zhang, Y., Yang, X., Yu, M., Sun, Z., Li, C., Wu, F., & Wang, Q.
Affiliations
Chinese Academy of Sciences (CN)
Corresponding author
Wang, Qiangbin
Venue
Advanced Materials
Publisher
Wiley
Published
2021-07-26
Volume
33
Issue
37
Pages
e2103953-e2103953
ISSN
  • 0935-9648 (ISSN-L)
  • 1521-4095
OpenAlex
W3183627861
Cited by
134
References
41
Citations by year
2026: 17 · 2025: 29 · 2024: 26 · 2023: 27 · 2022: 30 · 2021: 5
FWCI
6.68
Type
journal article
Language
en
Open access
closed
Locations
  • Advanced Materials (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Natural Science Foundation of China (21934007, 22001262)
  • Natural Science Foundation of Jiangsu Province (BK20200254)
  • China Postdoctoral Science Foundation (2019M661966)
  • Chinese Academy of Sciences (XDB32030200, 121E32KYSB20180021, ZDBS‐LY‐SLH021)
Topics
  • Physical Sciences › Materials Science › Materials Chemistry › Quantum Dots Synthesis And Properties
  • Physical Sciences › Materials Science › Materials Chemistry › Carbon and Quantum Dots Applications
  • Physical Sciences › Engineering › Biomedical Engineering › Nanoplatforms for cancer theranostics
Keywords
near-infrared fluorescent probe, angiogenesis imaging, arteriogenesis, hindlimb ischemia, cation exchange, photoluminescence quantum yield, photostability, biocompatibility, in vivo imaging
MeSH terms
Animals, Biocompatible Materials, Cell Line, Cell Survival, Disease Models, Animal, Gold, Hindlimb, Humans, Ischemia, Mice, Inbred BALB C, Neovascularization, Pathologic, Silver, Tellurium, Spectroscopy, Near-Infrared, Quantum Dots, Mice, Signal-To-Noise Ratio

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