Article ; Online: AIEgens Cross-linked Iron Oxide Nanoparticles Synchronously Amplify Bimodal Imaging Signals in Situ by Tumor Acidity-Mediated Click Reaction.
Angewandte Chemie (International ed. in English)
2023 Volume 62, Issue 52, Page(s) e202310975
Abstract: Activatable dual-modal molecular imaging probes present a promising tool for the diagnosis of malignant tumors. However, synchronously enhancing dual-modal imaging signals under a single stimulus is challenging. Herein, we propose an activatable bimodal ... ...
Abstract | Activatable dual-modal molecular imaging probes present a promising tool for the diagnosis of malignant tumors. However, synchronously enhancing dual-modal imaging signals under a single stimulus is challenging. Herein, we propose an activatable bimodal probe that integrates aggregation-induced emission luminogens (AIEgens) and iron oxide nanoparticles (IOs) to synergistically enhance near-infrared fluorescence (NIRF) intensity and magnetic resonance (MR) contrast through a tumor acidity-mediated click reaction. Tumor acidity-responsive IOs containing dibenzocyclooctyne groups (termed cDIOs) and AIEgens containing azide groups (termed AATs) can be covalently cross-linked in response to tumor acidity, which leads to a simultaneous enhancement in NIRF intensity (≈12.4-fold) and r |
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MeSH term(s) | Mice ; Animals ; Neoplasms ; Molecular Probes ; Magnetic Resonance Imaging/methods ; Molecular Imaging ; Magnetic Iron Oxide Nanoparticles ; Nanoparticles ; Optical Imaging/methods |
Chemical Substances | Molecular Probes |
Language | English |
Publishing date | 2023-11-23 |
Publishing country | Germany |
Document type | Journal Article |
ZDB-ID | 2011836-3 |
ISSN | 1521-3773 ; 1433-7851 |
ISSN (online) | 1521-3773 |
ISSN | 1433-7851 |
DOI | 10.1002/anie.202310975 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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