Abstract
Near-infrared (NIR) chemiluminescence imaging holds potential for sensitive imaging of cancer due to its low background; however, few NIR chemiluminophores are available, which share the drawback of low chemiluminescence quantum yields (ΦCL). Herein, we report the synthesis of NIR chemiluminophores for cancer imaging and laparotomy. Molecular engineering of the electron-withdrawing group at the para-position of the phenol-dioxetane leads to a highly bright NIR chemiluminophore (DPT), showing the ΦCL (4.6×10−2 Einstein mol−1) that is 3 to 5-fold higher than existing NIR chemiluminophores. By caging the phenol group of DPT with a cathepsin B (CatB) responsive moiety, an activatable chemiluminescence probe (DPTCB) is developed for real-time turn-on detection of deeply buried tumor tissues in living mice. Due to its high brightness, DPTCB permits accurate chemiluminescence-guided laparotomy.
Original language | English |
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Article number | e202213791 |
Journal | Angewandte Chemie - International Edition |
Volume | 62 |
Issue number | 8 |
DOIs | |
Publication status | Published - Feb 13 2023 |
Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2022 Wiley-VCH GmbH.
ASJC Scopus Subject Areas
- Catalysis
- General Chemistry
Keywords
- Activatable Probes
- Biosensors
- Chemiluminescence Imaging
- In Vivo Imaging
- Near-Infrared Fluorescence
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Investigators at Nanyang Technological University Report Findings in Cancer Imaging (Highly Bright Near-infrared Chemiluminescent Probes for Cancer Imaging and Laparotomy)
2/23/23
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