AIE + ESIPT activity-based NIR Cu2+ sensor with dye participated binding strategy

Jie Jiang; Haifeng Sun; Yanlei Hu; Gang Lu; Jiwei Cui; Jingcheng Hao

doi:10.1039/D1CC02233D

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AIE + ESIPT activity-based NIR Cu²⁺ sensor with dye participated binding strategy †

Jie Jiang,

*^a Haifeng Sun,^a Yanlei Hu,^a Gang Lu,

^a Jiwei Cui

^a and Jingcheng Hao

Author affiliations

* Corresponding authors

^a School of Chemistry and Chemical Engineering, Key Laboratory of the Colloid and Interface Chemistry, Ministry of Education, Shandong University, Jinan 250100, China
E-mail: jiejiang@sdu.edu.cn

Abstract

A novel activity-based Cu²⁺ fluorescent probe featuring multidentate binding sites was synthesized. It functions through chelation with Cu²⁺, which in turn specifically triggers hydrolysis of the probe to release a near-infrared emission with AIE + ESIPT properties. The probe was found to be capable of ratiometric imaging of Cu²⁺ in living HeLa cells.

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Article information

DOI: https://doi.org/10.1039/D1CC02233D
Article type: Communication
Submitted: 27 Apr 2021
Accepted: 28 Jun 2021
First published: 28 Jun 2021

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Chem. Commun., 2021,57, 7685-7688

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AIE + ESIPT activity-based NIR Cu²⁺ sensor with dye participated binding strategy

J. Jiang, H. Sun, Y. Hu, G. Lu, J. Cui and J. Hao, Chem. Commun., 2021, 57, 7685 DOI: 10.1039/D1CC02233D

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Chemical Communications