Sun Xue-Jiao, Liu Ting-Ting, Fu Hong, Li Na-Na, Xing Zhi-Yong, Yang Fan
Department of Applied Chemistry, College of Science, Northeast Agricultural University, Harbin, China.
Front Chem. 2019 Aug 2;7:549. doi: 10.3389/fchem.2019.00549. eCollection 2019.
A novel Al chemosensor was designed and synthesized on basis of the mechanism of ICT and CHEF. Upon addition of Al, the probe displayed a bright green fluorescence under UV radiation and visual color change from yellow to colorless. Spectrum titrations showed that could be recognized as a fluorescent turn-on probe with 10 M detection level. The probe was successfully applied in real water sample and test paper. More important, -Al complex were used as a fluorescent turn-off probe for the detection of ClO with the detection as low as 2.34 × 10 M. The performance of to Al and -Al complex to ClO demonstrated that could be served as a sensitive probe and exhibit INHIBIT logic gate behavior with Al and ClO as inputs.
基于分子内电荷转移（ICT）和化学增强荧光（CHEF）机制设计并合成了一种新型铝化学传感器。加入铝后，该探针在紫外辐射下呈现亮绿色荧光，并且颜色从黄色变为无色。光谱滴定表明，该探针可作为检测限为10⁻⁶ M的荧光开启型探针。该探针已成功应用于实际水样和试纸。更重要的是，铝配合物用作荧光关闭型探针检测次氯酸根，检测限低至2.34×10⁻⁸ M。该探针检测铝以及铝配合物检测次氯酸根的性能表明，该探针可作为一种灵敏的探针，并以铝和次氯酸根作为输入呈现抑制逻辑门行为。
