Mao Pandong, Song Yufei, Zhao Xiaolei, Wu Weina, Wang Yuan
College of Chemistry and Chemical Engineering, Henan Key Laboratory of Coal Green Conversion, Henan Polytechnic University, Jiaozuo, 454000, PR China.
Henan Key Laboratory of Industrial Microbial Resources and Fermentation Technology, School of Biological and Chemical Engineering, Nanyang Institute of Technology, Nanyang, 473004, PR China.
J Fluoresc. 2024 Jul 15. doi: 10.1007/s10895-024-03847-x.
Considering the high toxicity and widespread application of phosgene, there is an urgent need to develop a simple and sensitive method for detecting phosgene. In this work, we designed and synthesized a novel ratiometric fluorescent probe 1 containing fluorophores of benzimidazole and benzothiazole. Probe 1 showed excellent sensitivity (< 30 s) and selectivity (LOD = 3.82 nM) for phosgene and significant ratiometric fluorescence changes. In addition, 1-loaded polystyrene membrane test strips were used to conveniently and efficiently detect phosgene gas (0.5 ppm) via the naked eye and the RGB APP of the smartphone, indicating that this probe has great potential for phosgene detection in the gaseous phase.
鉴于光气的高毒性和广泛应用，迫切需要开发一种简单且灵敏的光气检测方法。在本工作中，我们设计并合成了一种新型的比率荧光探针1，其包含苯并咪唑和苯并噻唑荧光团。探针1对光气表现出优异的灵敏度（<30秒）和选择性（检测限=3.82 nM）以及显著的比率荧光变化。此外，负载有1的聚苯乙烯膜测试条用于通过肉眼和智能手机的RGB应用程序方便且高效地检测光气气体（0.5 ppm），这表明该探针对气相光气检测具有巨大潜力。
