当前位置: X-MOL 学术Dyes Pigments › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
A novel D-π-A triphenylamine-based turn-on colorimetric and ratiometric fluorescence probe for cyanide detection
Dyes and Pigments ( IF 4.5 ) Pub Date : 2018-09-28 , DOI: 10.1016/j.dyepig.2018.09.074
Qingyun Li , Zhencao Wang , Wenwen Song , Huiling Ma , Jiaying Dong , Yun-Yun Quan , Xiaoxia Ye , Zu-Sheng Huang

A novel colorimetric fluorescent chemosensor TP1 with a D-π-A structure for the detection of (cyanide) CN has been developed. TP1 is capable of showing high selectivity and sensitivity towards CN over a wide range of other interfering anions. After reaction with CN, TP1 shows a significant blue-shift of absorption peak from 514 to 437 nm, which induces color changes from amaranth to yellow. Non-fluorescent TP1 upon interaction with CN exhibits a ca. 17-fold fluorescence enhancement at 551 nm, resulting in strong orange emission. The sensing mechanism of TP1 recognizes CN which undergoes a nucleophilic addition reaction. Moreover, the detection limit of the probe TP1 towards CN is 1.4 × 10−8 M, which is far lower than the WHO guideline of 1.9 μM cyanide for drinking water. In addition, the cell imaging experiments certify that TP1 can be successfully applied as a bioimaging agent for monitoring CN in pheochromocytoma cell (PC12).



中文翻译:

一种新型的D-π-A三苯胺基开启式比色和比率荧光探针,用于氰化物检测

一种新颖的比色荧光化学传感器TP1与用于检测的(氰)一个d-π-A结构CN -已经研制成功。TP1能够显示朝向CN的高选择性和灵敏性的-在宽范围的其他干扰的阴离子。与CN反应后- TP1吸收峰的示出了显著蓝移从514到437纳米,其诱导从苋菜颜色变为黄色。非荧光TP1在与CN交互-表现出约 在551 nm处荧光增强17倍,导致强烈的橙色发射。的感应机制TP1识别CN -经历亲核加成反应。此外,探针的检测极限TP1向CN -是1.4×10 -8  M,其远低于1.9μM氰化物的WHO指南饮用水。此外,细胞成像实验证明TP1可以成功地应用于作为生物成像剂用于监测CN -在嗜铬细胞瘤细胞(PC12)。

更新日期:2018-09-28
down
wechat
bug