Key Laboratory of Forest Plant Ecology, Ministry of Education, Engineering Research Center of Forest Bio-Preparation, College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, 150040, P. R. China.
Post-doctoral Mobile Research Station of Forestry Engineering, Northeast Forestry University, Harbin, 150040, P. R. China.
Nat Commun. 2022 Sep 3;13(1):5189. doi: 10.1038/s41467-022-32878-w.
Nerve agents, one of the most toxic chemical warfare agents, seriously threaten human life and public security. The high toxicity of nerve agents makes the development of fluorescence sensors with suitable limit of detection challenging. Here, we propose a sensor design based on a conjugated microporous polymer film for the detection of diethyl chlorophosphate, a substitute of Sarin, with low detection limit of 2.5 ppt. This is due to the synergy of the susceptible on-off effect of hybridization and de-hybridization of hybrid local and charge transfer (HLCT) materials and the microporous structure of CMP films facilitating the inward diffusion of DCP vapors, and the extended π-conjugated structure. This strategy provides a new idea for the future development of gas sensors. In addition, a portable sensor is successfully integrated based on TCzP-CMP films that enables wireless, remote, ultrasensitive, and real-time detection of DCP vapors.
神经毒剂是毒性最强的化学战剂之一，严重威胁人类生命和公共安全。神经毒剂的高毒性使得开发具有合适检测限的荧光传感器具有挑战性。在这里，我们提出了一种基于共轭微孔聚合物薄膜的传感器设计，用于检测沙林替代品二乙基氯膦，其检测限低至 2.5ppt。这是由于杂交体的易受影响的开-关效应和混合局部电荷转移（HLCT）材料的去杂交以及 CMP 薄膜的微孔结构促进了 DCP 蒸气的向内扩散以及扩展的π共轭结构的协同作用。该策略为未来气体传感器的发展提供了新的思路。此外，成功地基于 TCzP-CMP 薄膜集成了一种便携式传感器，实现了对 DCP 蒸气的无线、远程、超高灵敏和实时检测。
