Visible-light Excited and Highly Photostable Organic Fluorophore with dual-state Emission

被引：0
作者：
Yongchao Li
Liqing Zhang
Xianfeng Meng
Guowei Shi
Wei Gao
Guiyun Duan
Yanqing Ge
机构：
[1] Shandong First Medical University & Shandong Academy of Medical Sciences,Department of Chemistry and Pharmaceutical Engineering
来源：
Journal of Fluorescence | 2024年 / 34卷
关键词：
Cell imaging; Photostability; Dual-state emission; Zebrafish; Imidazo[1,2-a]pyridine;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Organic fluorophores with dual-state emission (DSE) are rare or difficult to observe because most of them display either aggregation-induced emission (AIE) or aggregation-caused quenching (ACQ). Amazing works have been accomplished, yet most of the DSE compounds were excited by UV light which limits their wide application in bioimaging. In this work, we achieved a visible-light excited DSE fluorophore and realized its imaging in SKOV-3 cells and zebrafish. The naphtho[2’,3’:4,5]imidazo[1,2-a]pyridine (NIP) core ensures its emission in dilute solution. Meanwhile, the twisted phenyl ring blocks fluorescence quenching induced by the π-π stacking and leads to the emission of the solid. The fluorescence intensity is steady even after 6 h of continuous intense sunlight. More importantly, photostability of NIP in cells is much better than commercial dye (mitochondrial green).
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页码：829 / 832
页数：3
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