A Cu2+-Selective Probe Based on Phenanthro-Imidazole Derivative
A Cu2+-Selective Probe Based on Phenanthro-Imidazole Derivative
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基于菲咪唑衍生物的Cu2选择性探针
DOI：
10.3390/s17010035
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发表时间：
2017-01-01
期刊：
影响因子：
3.9
通讯作者：
Zang, Ling
中科院分区：
文献类型：
--
作者：
Cheng, Dandan;Liu, Xingliang;Zang, Ling
本文报道了一种基于邻菲咯啉-咪唑的新型荧光探针1，它是一种高效的痕量铜离子（Cu ~（2+））的化学传感器。探针1通过1：1化学计量螯合与Cu 2+结合后表现出灵敏的荧光猝灭。通过线性猝灭拟合，预测Cu 2+离子的检测限低至2.77 × 10−8 M（或1.77 ppb）。该传感响应对Cu 2+具有高度选择性，受其他常见金属离子的影响最小，有利于探针1在痕量检测中的实际应用。
A novel fluorescent Probe 1, based on phenanthro-imidazole has been developed as an efficient chemosensor for the trace detection of copper ions (Cu2+). Probe 1 demonstrated sensitive fluorescence quenching upon binding with Cu2+ through 1:1 stoichiometric chelation. The detection limit for Cu2+ ions was projected through linear quenching fitting to be as low as 2.77 × 10−8 M (or 1.77 ppb). The sensing response was highly selective towards Cu2+ with minimal influence from other common metal ions, facilitating the practical application of Probe 1 in trace detection.