A colorimetric and fluorescent probe for rapid determination of copper in water and living cells
首发时间:2017-05-05
Abstract:Detection of copper ions (Cu2+) is of great significance in protecting the environment and human health. In the present work, we developed a new colorimetric and fluorescent probe for Cu2+ determination with high selectivity and rapid-response rate. Upon Cu2+ addition, the probe underwent an 86 nm blue-shift in absorption peak wavelength as well as a significant quenching in fluorescence emission. The fluorescence intensity at 575 nm showed a good linear relationship (R2 = 0.999) with the Cu2+ concentration in the range of 0 μM ~ 12 μM. Using the probe as an analytical tool, the detection of Cu2 + can be done within 5 s, whose process was not subject to interference from other metal ions and pH changes. Moreover, the probe can be used for Cu2+ assay in both real water sample and living cells.
keywords: Colorimetric and fluorescent probe Fluorescence imaging. Cu2+
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铜离子比色/荧光探针的设计合成及应用研究
摘要:铜离子(Cu2+)的检测对于保护环境和人体健康具有重要意义。在本工作中,我们开发了一种新型比色和荧光探针,用于Cu2+ 的高选择性、快速测定。与Cu2+ 反应后,该探针的吸收峰波长能够发生86 nm的蓝移,同时荧光被猝灭。575 nm处的荧光强度与0 μM?12 μM范围内Cu2+ 表现出良好的线性关系(R2 = 0.999)。 该探针对Cu2+的检测可以在5秒内完成,且检测过程不受其他金属离子和pH变化的干扰。此外,该探针还可用于实际水样和活细胞中的Cu2+ 测定。
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No.4728954119651614****
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