作为一个关闭的光传感探测器的Pyrene/Methoxy功能化的共价有机框架,用于光/智能视觉检测Cartap的光/智能视觉检测

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Guangrao Chen¹, Lin Cai¹, Wen Hao¹

¹State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, China.

Analytical chemistry

|October 31, 2025

概括

一种新型的共价有机框架 (COF) 能够对昆虫杀虫剂cartap.的敏感光检测. 这种方法提供了一种快速和可视化的方法,用于监测食品安全应用中的纸残留物.

科学领域:

材料科学材料科学材料科学
分析化学分析化学
环境科学环境科学

背景情况:

卡塔普杀虫剂残留物对水生生态系统,农产品安全和人类健康构成风险.
开发敏感和选择性检测方法对于食品安全和环境监测至关重要.

研究的目的:

构建一个共价有机框架 (COF),Py-DMTA-COF,用于光 (FL) 和视觉检测 cartap.
通过合成的COF来研究卡塔普检测的机制.

主要方法:

通过TAPPy和DMTA之间的希夫基反应合成Py-DMTA-COF.
光光谱检测卡塔普,利用光诱导电子转移 (PET) 和层间相互作用.
智能手机辅助的视觉检测平台用于定量分析.

主要成果:

由于PET和强烈的层间相互作用,Py-DMTA-COF表现出光火 (FL-OFF).
卡塔普通过阻断PET和削弱层间相互作用来诱导光恢复 (FL-ON).
通过使用FL光谱学实现了卡塔普0.11 ng mL-1的低检测极限 (LOD).
基于智能手机的视觉检测显示了0.0516μg mL-1的线性范围,LOD为0.0138μg mL-1.1.

结论:

开发的Py-DMTA-COF是一种高度灵敏的光传感器,用于检测.
智能手机辅助的视觉平台提供了一种便携式和高效的方法,用于现场监控卡塔普.
这种方法对于高精度检测食品中的危险物质具有重大潜力.

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