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首页> 外文期刊>RSC Advances >A novel water-soluble naked-eye probe with a large Stokes shift for selective optical sensing of Hg2+ and its application in water samples and living cells
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A novel water-soluble naked-eye probe with a large Stokes shift for selective optical sensing of Hg2+ and its application in water samples and living cells

机译：一种新型水溶性裸眼探针，具有大型斯托克斯，用于HG2 +的选择性光学传感及其在水样和活细胞中的应用

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摘要

A water-soluble and colorimetric fluorescent probe with a large Stokes shift (139 nm) for rapidly detecting Hg2+, namely Hcy-mP, was synthesized by using an indole derivative and 2,4-dihydroxybenzaldehyde as starting materials. This probe demonstrates good selectivity for Hg2+ over other metal ions including Ag+, Pb2+, Cd2+, Cr3+, Zn2+, Fe3+, Co2+, Ni2+, Cu2+, K+, Na+, Mg2+, and Ca2+ in aqueous solution. With the increase in concentration of Hg2+, the color of the solution changed from pale yellow to pink and the fluorescence intensity decreased slightly. When 5-equivalents of EDTA were added to the solution with Hg2+, the fluorescence intensity of this probe was restored. The probe has been applied to the detection of Hg2+ in real water samples. Moreover, this probe was confirmed to have low cytotoxicity and excellent cell membrane permeability. The effect of Hcy-mP-Hg2+ towards living cells by confocal fluorescence was also investigated.
机译：通过使用吲哚衍生物和2,4-二羟基苯甲醛作为起始材料，合成了具有大型斯托克斯偏移（139nm）的水溶性和比色荧光探针，用于快速检测Hg2 +，即Hcy-Mp。 该探针在其他金属离子上显示出良好的选择性，包括Ag +，Pb2 +，CD2 +，Cr3 +，Zn2 +，Fe 3 +，CO 2 +，Ni2 +，Cu 2 +，K +，Na +，Mg2 +，K +，Na +，Mg2 +，Ca2 +在水溶液中。 随着HG2 +浓度的增加，溶液的颜色从浅黄色变为粉红色，荧光强度略有下降。 当用HG2 +加入5当量的EDTA时，恢复该探针的荧光强度。 探针已应用于真实水样中Hg2 +的检测。 此外，确认该探针具有低细胞毒性和优异的细胞膜渗透性。 研究了HCY-MP-HG2 +对共聚焦荧光的影响。

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  • 来源
    《RSC Advances》 |2019年第40期|共8页
  • 作者

    Zhang Yingying; Zhang Chao; Wu Yingnan; Zhao Bing; Wang Liyan; Song Bo;

  • 作者单位

    Qiqihar Univ Coll Chem &

    Chem Engn Qiqihar 161006 Heilongjiang Peoples R China;

    Qiqihar Univ Coll Chem &

    Chem Engn Qiqihar 161006 Heilongjiang Peoples R China;

    Shandong Univ Inst Mol Sci &

    Engn Qingdao 266237 Shandong Peoples R China;

    Qiqihar Univ Coll Chem &

    Chem Engn Qiqihar 161006 Heilongjiang Peoples R China;

    Qiqihar Univ Coll Chem &

    Chem Engn Qiqihar 161006 Heilongjiang Peoples R China;

    Qiqihar Univ Coll Chem &

    Chem Engn Qiqihar 161006 Heilongjiang Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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