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Cytidine-stabilized copper nanoclusters as a fluorescent probe for sensing of copper ions and hemin

机译：胞苷稳定的铜纳米能器作为荧光探针，用于检测铜离子和血红素

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摘要

We reported a sensitive and selective fluorescence "turn on-off" strategy for detection of Cu2+ and hemin, respectively. The fluorescence "turn on" sensor for Cu2+ detection had a wide linear range of 0.05-2.0 mu M with a limit of detection (LOD) of 0.032 mu M, and the fluorescence "turn off" sensor for hemin detection possessed a wide linear range of 0.05-4.0 mu M with an LOD of 0.045 mu M. The sensor for Cu2+ or hemin exhibited high selectivity over other possible substances. In addition, it was demonstrated by using various analytical characterization techniques that the fluorescence "turn on" sensor for Cu2+ was constructed on the basis of the formation of water-soluble fluorescent copper nanoclusters (CuNCs), and the fabrication of the fluorescence "turn off" sensor for hemin was predominately based on the inner filter effect of hemin on the fluorescence of the CuNCs. Finally, the proposed fluorescence "turn on-off" sensor system was successfully applied for detection of Cu2+ in lake water samples and hemin in duck blood samples.
机译：我们报道了一种敏感和选择性的荧光“接通接通”策略，用于检测Cu2 +和血红素。用于Cu2 +检测的荧光“开启”传感器的宽线性范围为0.05-2.0μm，其检测极限（LOD）为0.032μm，并且用于血红素检测的荧光“关闭”传感器具有宽线性范围0.05-4.0μm的含量为0.045μm。用于Cu2 +或血红素的传感器对其他可能物质的选择性高。另外，通过使用各种分析表征技术来证明，基于形成水溶性荧光铜纳米能器（Cunc）的形成，构建了Cu2 +的荧光“开启”传感器，荧光的制造“关闭” “血红素的传感器主要是基于血红素内滤波对粘膜荧光的内部滤波效果。最后，建议的荧光“转截止”传感器系统被成功应用于鸭血样品中湖水样品和血红素中的Cu2 +检测。

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  • 来源
    《RSC Advances》 |2018年第17期|共6页
  • 作者

    Wang Yong; Chen Tianxia; Zhang Zhengtao; Ni Yongnian;

  • 作者单位

    Nanchang Univ Coll Chem Nanchang 330031 Jiangxi Peoples R China;

    Nanchang Univ Coll Chem Nanchang 330031 Jiangxi Peoples R China;

    Nanchang Univ Coll Chem Nanchang 330031 Jiangxi Peoples R China;

    Nanchang Univ Coll Chem Nanchang 330031 Jiangxi Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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