一种用于选择性检测铜离子和锌离子的比色和荧光化学传感器。
A Colorimetric and Fluorescent Chemosensor for the Selective Detection of Cu and Zn Ions.
作者信息
Kim Min Seon, Jo Tae Geun, Ahn Hye Mi, Kim Cheal
机构信息
Department of Fine Chemistry and Department of Interdisciplinary Bio IT Materials, Seoul National University of Science and Technology, Seoul, 139-743, South Korea.
出版信息
J Fluoresc. 2017 Jan;27(1):357-367. doi: 10.1007/s10895-016-1964-3. Epub 2016 Oct 28.
A new bi-functional chemosensor 1 based on 3,5-dichlorosalicylaldehyde and 2-(methylthio)aniline has been synthesized. It can detect Cu with a color change from pale yellow to dark yellow in aqueous solution. The selective mechanism of 1 for Cu was proposed to be the enhancement of the intramolecular charge transfer (ICT) band, which was explained by theoretical calculations. The sensor 1 could be used to detect and quantify Cu in water samples. In addition, the sensor 1 displayed "turn-on" fluorescence response only to Zn, based on an effect of chelation-enhanced fluorescence (CHEF). Therefore, 1 can serve as a 'single sensor for two different targets' with dual modes.
一种基于3,5-二氯水杨醛和2-(甲硫基)苯胺的新型双功能化学传感器1已被合成。它在水溶液中能通过颜色从浅黄色变为深黄色来检测铜。传感器1对铜的选择性机制被认为是分子内电荷转移(ICT)带的增强，这通过理论计算得到了解释。传感器1可用于检测和定量水样中的铜。此外，基于螯合增强荧光(CHEF)效应，传感器1仅对锌呈现“开启”荧光响应。因此，1可以作为一种具有双模式的“针对两种不同目标的单一传感器”。
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