Fujian Longking Co. Ltd., Longyan 364000, Fujian, China.
Collaborative Innovation Center of Clean Energy, Longyan University, Longyan 364000, Fujian, China; Fujian Provincial Key Laboratory of Clean Energy Materials, College of Chemistry and Materials Science, Longyan University, Longyan 364000, Fujian, China.
Spectrochim Acta A Mol Biomol Spectrosc. 2018 Sep 5;202:65-69. doi: 10.1016/j.saa.2018.05.030. Epub 2018 May 9.
Copper nanoclusters (Cu NCs) have attracted great research interest in recent years owing to its unique physical, electrical and optical properties. Macromolecules have been widely used as templates to synthesize fluorescent Cu NCs. In this study, a simple method for synthesis of albumin chicken egg capped porous copper nanoclusters (p-Cu NCs) was developed for the first time. The obtained p-Cu NCs exhibited intense emission and excitation peaks at 280 nm and 340 nm, respectively. Besides, the p-Cu NCs fluorescence probe could be quenched by Fe ions in aqueous solutions. Therefore, the p-Cu NCs can be excellently candidated as fluorescent probe for the detection of Fe ions. Under optimized conditions, this fluorescent probe exhibited a wide linear response concentration range (0.2 to 100 μM) to Fe with a detection limit of 0.0234 μM. In addition, the fluorescent probe has been successfully used for the detection of Fe in natural water samples with satisfactory result.
铜纳米簇（Cu NCs）由于其独特的物理、电学和光学性质，近年来引起了极大的研究兴趣。高分子已被广泛用作合成荧光 Cu NCs 的模板。在本研究中，首次开发了一种简单的方法来合成白蛋白鸡卵壳多孔铜纳米簇（p-Cu NCs）。所得到的 p-Cu NCs 在 280nm 和 340nm 处分别表现出强烈的发射和激发峰。此外，p-Cu NCs 荧光探针可以在水溶液中被 Fe 离子猝灭。因此，p-Cu NCs 可以极好地作为荧光探针用于检测 Fe 离子。在优化条件下，该荧光探针对 Fe 的线性响应浓度范围较宽（0.2 至 100µM），检测限为 0.0234µM。此外，该荧光探针已成功用于天然水样中 Fe 的检测，结果令人满意。
