上海市功能性材料重点实验室,华东理工大学 化学与分子工程学院,上海 200237
钱俊红,博士,教授,研究方向:荧光分子传感器,E-mail:junhongqian@ecust.edu.cn
收稿:2025-03-25,
修回:2025-04-27,
录用:2025-05-14,
网络出版:2025-10-20,
纸质出版:2025-12-15
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常炜婕,何雨婷,许方龙,张维冰,钱俊红.1,8-萘酰亚胺类荧光探针对肼的检测[J].分析测试学报,2025,44(12):2601-2607.
CHANG Wei-jie,HE Yu-ting,XU Fang-long,ZHANG Wei-bing,QIAN Jun-hong.1,8-Naphthalimide-based Fluorescent Probe for the Detection of Hydrazine[J].Journal of Instrumental Analysis,2025,44(12):2601-2607.
常炜婕,何雨婷,许方龙,张维冰,钱俊红.1,8-萘酰亚胺类荧光探针对肼的检测[J].分析测试学报,2025,44(12):2601-2607. DOI: 10.12452/j.fxcsxb.250325226.
CHANG Wei-jie,HE Yu-ting,XU Fang-long,ZHANG Wei-bing,QIAN Jun-hong.1,8-Naphthalimide-based Fluorescent Probe for the Detection of Hydrazine[J].Journal of Instrumental Analysis,2025,44(12):2601-2607. DOI: 10.12452/j.fxcsxb.250325226.
基于Gabriel反应,在萘酰亚胺的4-位引入邻苯二甲酰亚胺、亚胺位引入溶酶体定位基团吗啉,合成了探针
NMA
和
NMB
用于对肼的检测。实验结果表明两种探针对肼均有较强的光谱响应,其中
NMA
对肼的响应更加灵敏、快速。肼的加入使
NMA
的吸收光谱红移100 nm,其在527 nm处的荧光信号最大增强约500倍。在5.0~70 µmol/L范围内,
NMA
的荧光强度与肼的浓度呈现良好的线性关系,对肼的检出限为1.83 µmol/L。此外,通过高效液相色谱和密度泛函理论计算验证了探针
NMA
对肼的响应机理。细胞成像结果表明
NMA
能够实现对溶酶体内肼的荧光成像。
Based on the Gabriel reaction,two fluorescent probes,
NMA
and
NMB
,were synthesized for hydrazine detection. The probes were constructed with naphthalimide as the fluorophore,a phthalimide at the 4-position selected as the receptor and a morpholine at imide site as a lysosome-targeted group. Experimental results demonstrated that both probes exhibited evidently spectral responses to hydrazine. Compared to
NMB
,
NMA
displayed better performance such as higher sensitivity and faster response. The addition of hydrazine resulted in ~100 nm red shift in the absorption of
NMA
,companied with 500-fold fluorescence enhancement. The fluorescence intensity of
NMA
showed a good linear relationship with hydrazine concentration in the range of 5.0-70 µmol/L,with a detection limit(3
σ
/
k
) of 1.83 µmol/L. The response mechanis
m of
NMA
to hydrazine was validated by HPLC and theoretical calculations. Confocal imaging experiments demonstrated that
NMA
could realize imaging lysosomal hydrazine.
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