【摘要】：報道了一種基于香豆素衍生物與銅離子的絡合物(C1-Cu),可通過間接的方法檢測硫離子。絡合物C1-Cu的溶液中加入硫離子后,表現(xiàn)出明顯的熒光增強響應,檢測靈敏度高,檢出限低達90 nmol/L;響應速度快,可實現(xiàn)硫離子的實時檢測;熒光強度變化與硫離子濃度呈現(xiàn)良好的線性關(guān)系,能準確地定量分析硫離子濃度。上述絡合物C1-Cu對硫離子的檢測具有超高的選擇性,即使在其他陰離子存在下也能高效地識別出硫離子;得益于香豆素良好的水溶性和生物相容性,上述絡合物C1-Cu可實現(xiàn)生物細胞中硫離子的熒光成像。除熒光光譜響應之外,該體系對硫離子亦有紫外-可見光譜響應,無需借助任何儀器便可實現(xiàn)對硫離子方便、快捷的"裸眼"檢測。
[Abstract]:A complex (C1-Cu) based on coumarin derivatives and copper ions is reported, which can be used to detect sulfur ions indirectly. When sulfur ions are added into the solution of complex C1-Cu, the fluorescence enhancement response is obvious, the detection sensitivity is high, the detection limit is up to 90 nmol/L; and the response speed is fast, so the real-time detection of sulfur ions can be realized. The change of fluorescence intensity has a good linear relationship with the concentration of sulfur ion, and it can be used to analyze the concentration of sulfur ion accurately. The complex C1-Cu has high selectivity for the detection of sulfur ions, and can efficiently identify sulfur ions even in the presence of other anions. Thanks to the good water-solubility and biocompatibility of coumarin, the complex C1-Cu can realize fluorescence imaging of sulfur ions in biological cells. In addition to the fluorescence spectral response, the system also has UV-Vis spectral response to sulfur ions. It can be easily and quickly "naked eye" detection of sulfur ions without any instrument.
【作者單位】： 湖北文理學院低維光電材料與器件湖北省重點實驗室;
【基金】：Supported by National Natural Science Foundation of China(21502047) Partially Supported by Hubei Provincial Collaborative Innovation Center for Optoelectronics~~
【分類號】：O657.3;Q2-33

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1 張建民,韓曉弟,梁奉軍;不同濃度的硫離子處理果蠅的遺傳學效應的研究[J];煙臺大學學報(自然科學與工程版);2002年01期

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