A highly sensitive and fast responsive naphthalimide-based fluorescent probe for Cu2+ and its application
文献类型： 外文期刊
作者： Zhang, Beibei 1 ; Qin, Fengyun 1 ; Niu, Huawei 1 ; Liu, Yao 1 ; Zhang, Di 2 ; Ye, Yong 1 ;
作者机构： 1.Zhengzhou Univ, Coll Chem & Mol Engn, Phosphorus Chem Engn Res Ctr Henan Prov, Zhengzhou, Henan, Peoples R China
2.Henan Acad Agr Sci, Inst Agr Qual Stand & Testing Technol, Zhengzhou, Henan, Peoples R China
3.Tsinghua Univ, Dept Chem, Key Lab Bioorgan Phosphorus Chem & Chem Biol, Minist Educ, Beijing, Peoples R China
期刊名称：NEW JOURNAL OF CHEMISTRY （ 影响因子：3.591； 五年影响因子：3.385 ）
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收录情况： SCI
摘要： A novel naphthalimide-based Cu2+ fluorescent probe containing diglycolamine, which served as a water solubility group and provided the coordination ability to Cu2+, was designed and successfully synthesized. The response of the probe L to Cu2+ is reversible and very fast (20 s). The low detection limit of 49 nM for Cu2+ detection was sufficient for the detection of the maximum allowed copper levels in dietary and environmental sources. The stoichiometry of binding between L and Cu2+ was 1 : 1, as supported by fluorescence spectra and ESI-MS. L has been used for the imaging of Cu2+ in MCF-7 cells with satisfying results. The sensor L can be analyzed with a molecular logic gate. It was also found that the fluorescence of L-Cu2+ can be regulated by a photoacid.
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