Photooxidation triggered ultralong afterglow in carbon nanodots
© 2024. The Author(s)..
It remains a challenge to obtain biocompatible afterglow materials with long emission wavelengths, durable lifetimes, and good water solubility. Herein we develop a photooxidation strategy to construct near-infrared afterglow carbon nanodots with an extra-long lifetime of up to 5.9 h, comparable to that of the well-known rare-earth or organic long-persistent luminescent materials. Intriguingly, size-dependent afterglow lifetime evolution from 3.4 to 5.9 h has been observed from the carbon nanodots systems in aqueous solution. With structural/ultrafast dynamics analysis and density functional theory simulations, we reveal that the persistent luminescence in carbon nanodots is activated by a photooxidation-induced dioxetane intermediate, which can slowly release and convert energy into luminous emission via the steric hindrance effect of nanoparticles. With the persistent near-infrared luminescence, tissue penetration depth of 20 mm can be achieved. Thanks to the high signal-to-background ratio, biological safety and cancer-specific targeting ability of carbon nanodots, ultralong-afterglow guided surgery has been successfully performed on mice model to remove tumor tissues accurately, demonstrating potential clinical applications. These results may facilitate the development of long-lasting luminescent materials for precision tumor resection.
Medienart: |
E-Artikel |
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Erscheinungsjahr: |
2024 |
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Erschienen: |
2024 |
Enthalten in: |
Zur Gesamtaufnahme - volume:15 |
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Enthalten in: |
Nature communications - 15(2024), 1 vom: 15. März, Seite 2365 |
Sprache: |
Englisch |
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Beteiligte Personen: |
Zheng, Guang-Song [VerfasserIn] |
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Links: |
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Anmerkungen: |
Date Completed 18.03.2024 Date Revised 18.03.2024 published: Electronic Citation Status MEDLINE |
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doi: |
10.1038/s41467-024-46668-z |
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funding: |
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Förderinstitution / Projekttitel: |
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PPN (Katalog-ID): |
NLM369806921 |
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520 | |a It remains a challenge to obtain biocompatible afterglow materials with long emission wavelengths, durable lifetimes, and good water solubility. Herein we develop a photooxidation strategy to construct near-infrared afterglow carbon nanodots with an extra-long lifetime of up to 5.9 h, comparable to that of the well-known rare-earth or organic long-persistent luminescent materials. Intriguingly, size-dependent afterglow lifetime evolution from 3.4 to 5.9 h has been observed from the carbon nanodots systems in aqueous solution. With structural/ultrafast dynamics analysis and density functional theory simulations, we reveal that the persistent luminescence in carbon nanodots is activated by a photooxidation-induced dioxetane intermediate, which can slowly release and convert energy into luminous emission via the steric hindrance effect of nanoparticles. With the persistent near-infrared luminescence, tissue penetration depth of 20 mm can be achieved. Thanks to the high signal-to-background ratio, biological safety and cancer-specific targeting ability of carbon nanodots, ultralong-afterglow guided surgery has been successfully performed on mice model to remove tumor tissues accurately, demonstrating potential clinical applications. These results may facilitate the development of long-lasting luminescent materials for precision tumor resection | ||
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700 | 1 | |a Lou, Qing |e verfasserin |4 aut | |
700 | 1 | |a Jiang, Tian-Ci |e verfasserin |4 aut | |
700 | 1 | |a Li, Peng-Fei |e verfasserin |4 aut | |
700 | 1 | |a Shi, Xiao-Jing |e verfasserin |4 aut | |
700 | 1 | |a Song, Run-Wei |e verfasserin |4 aut | |
700 | 1 | |a Deng, Yuan |e verfasserin |4 aut | |
700 | 1 | |a Lv, Chao-Fan |e verfasserin |4 aut | |
700 | 1 | |a Liu, Kai-Kai |e verfasserin |4 aut | |
700 | 1 | |a Zang, Jin-Hao |e verfasserin |4 aut | |
700 | 1 | |a Cheng, Zhe |e verfasserin |4 aut | |
700 | 1 | |a Dong, Lin |e verfasserin |4 aut | |
700 | 1 | |a Shan, Chong-Xin |e verfasserin |4 aut | |
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