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Red-emitting GSH-Cu NCs as a triplet induced quenched fluorescent probe for fast detection of thiol pollutants.
Nanoscale ( IF 5.8 ) Pub Date : 2020-08-21 , DOI: 10.1039/d0nr04645k Jun-Hua Zhang 1 , Zi-Tong Zhang 2 , Yang-Jing Ou 2 , Fei Zhang 1 , Jie Meng 3 , Gen Wang 3 , Zhao-Lin Fang 2 , Yan Li 2
Nanoscale ( IF 5.8 ) Pub Date : 2020-08-21 , DOI: 10.1039/d0nr04645k Jun-Hua Zhang 1 , Zi-Tong Zhang 2 , Yang-Jing Ou 2 , Fei Zhang 1 , Jie Meng 3 , Gen Wang 3 , Zhao-Lin Fang 2 , Yan Li 2
Affiliation
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Thiol compounds exist widely on the Earth and have certain significance in the fields of the circulation of the sulfur element and industrial production. However, the odor and biological toxicity of thiol compounds make them pollutants that seriously threaten the environmental safety and the living quality of human. In this study, a novel triplet induced fluorescence “turn-off” strategy was designed for the detection of thiol pollutants via a glutathione-stabilized copper nanocluster (GSH-Cu NC) probe. The as-prepared GSH-Cu NCs not only have small size and good water-solubility, but also exhibit strong red-emitting fluorescence at 630 nm, which could be quenched quantitatively with the increase of the concentration of thiol pollutants. So they were employed to detect thioglycolic acid (TGA), 3-mercaptopropionic acid (MPA), 2-mercaptoethanol (ME) and 2-(diethylamino)ethanethiol (2-AT) in a wide linear range of 1–100 μM with detection limits of 0.73 μM, 0.43 μM, 0.37 μM, and 0.69 μM, respectively. This method was successfully applied to detect the above thiol pollutants in lake water with good recoveries. Moreover, their further application was also expanded as luminous test strips based on the excellent fluorescence characteristics of GSH-Cu NCs for fast real-time detection of thiol pollutants.
中文翻译：
发红光的GSH-Cu NCs作为三重态诱导淬灭的荧光探针，用于快速检测硫醇污染物。
硫醇化合物广泛存在于地球上，在硫元素的循环和工业生产领域中具有一定的意义。然而，硫醇化合物的气味和生物毒性使其成为严重威胁环境安全和人类生活质量的污染物。在这项研究中，设计了一种新颖的三重态诱导荧光“关闭”策略，用于通过谷胱甘肽稳定的铜纳米簇（GSH-Cu NC）探针。所制备的GSH-Cu NCs不仅体积小，水溶性好，而且在630 nm处显示出强烈的红色发光荧光，可以随着硫醇污染物浓度的增加而定量地猝灭。因此它们被用于检测线性范围为1–100μM的巯基乙醇酸（TGA），3-巯基丙酸（MPA），2-巯基乙醇（ME）和2-（二乙氨基）乙硫醇（2-AT）。极限分别为0.73μM，0.43μM，0.37μM和0.69μM。该方法已成功地用于检测湖水中的上述硫醇污染物，回收率高。此外，
更新日期：2020-10-02
中文翻译：
发红光的GSH-Cu NCs作为三重态诱导淬灭的荧光探针，用于快速检测硫醇污染物。
硫醇化合物广泛存在于地球上，在硫元素的循环和工业生产领域中具有一定的意义。然而，硫醇化合物的气味和生物毒性使其成为严重威胁环境安全和人类生活质量的污染物。在这项研究中，设计了一种新颖的三重态诱导荧光“关闭”策略，用于通过谷胱甘肽稳定的铜纳米簇（GSH-Cu NC）探针。所制备的GSH-Cu NCs不仅体积小，水溶性好，而且在630 nm处显示出强烈的红色发光荧光，可以随着硫醇污染物浓度的增加而定量地猝灭。因此它们被用于检测线性范围为1–100μM的巯基乙醇酸（TGA），3-巯基丙酸（MPA），2-巯基乙醇（ME）和2-（二乙氨基）乙硫醇（2-AT）。极限分别为0.73μM，0.43μM，0.37μM和0.69μM。该方法已成功地用于检测湖水中的上述硫醇污染物，回收率高。此外，
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