A chromene pyrazoline derivatives fluorescent probe for Zn2+ detection in aqueous solution and living cells

文献类型： 外文期刊

第一作者： Zhang, Ying-Peng

作者： Zhang, Ying-Peng;Xue, Qing-Hua;Yang, Yun-Shang;Liu, Xiao-Yu;Ma, Chun-Mei;Ru, Jia-Xi;Guo, Hui-Chen;Ru, Jia-Xi;Guo, Hui-Chen

作者机构：

关键词： Chromene; Pyrazoline; Fluorescent probe; Zn2+ recognition; Cell imaging

期刊名称：INORGANICA CHIMICA ACTA （ 影响因子：2.545； 五年影响因子：2.235 ）

ISSN： 0020-1693

年卷期： 2018 年 479 卷

页码：

收录情况： SCI

摘要： A new chromene pyrazoline derivatives fluorescent probe L was designed and synthesized. The probe L appears in a 55-fold fluorescence enhancement after 5 equiv. Zn2+ was added, and it also exhibits high sensitivity and selectivity for response to Zn2+ in ethanol-water (V:V= 1:1) solution through "OFF-ON" type process and a possible photoinduced electron transfer (PET). Notably, the probe L distinguishes between Zn2+ and Cd2+. The association constant was considered as 2.38 x 10(3) M (1) via fluorescence titration experiments. The probe L-Zn2+ complex forms a 1:1 binding stoichiometry which was discussed by Job's plot. The probe is very highly sensitive with fluorometric detection limit of 1.603 x 10( 10) M. It also shows good reversibility upon addition of EDTA. Furthermore, the viability of L to Zn2+ has practical application in live cell imaging. (C) 2018 Elsevier B.V. All rights reserved.

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