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AIE基于基的发光Ln-MOFs用于快速和选择性地检测四环素

Xiaoyong Zhai¹, Yao Kou¹, Lijuan Liang¹

¹State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P.R. China.

Inorganic chemistry

|October 28, 2023

概括

开发了高度稳定的双排放兰坦化金属有机框架 (Ln-MOFs). 在水溶液中,Eu-L表现出对四环素的快速和选择性光感应.

科学领域:

材料科学材料科学材料科学
协调化学协调化学
分析化学分析化学

背景情况:

兰化物金属有机框架 (Ln-MOFs) 由于其发光特性,为化学传感提供了潜力.
开发稳定,双排放的Ln-MOF对于实际的传感器应用至关重要.
光敏有机配体是设计先进光Ln-MOF的关键.

研究的目的:

为了合成和表征新型Ln-MOFs,使用基于四甲的AIE连接体.
为了研究制造的Ln-MOFs对于四环素检测的传感能力.
探索实时,现场测定环素的潜力.

主要方法:

一种基于四甲的AIE配体 (H4L) 的合成.
使用Sm3+,Eu3+,Gd3+和Tb3+制造的兰坦化金属有机框架 (Ln-L).
单晶X射线衍射分析以确定晶体结构.
光谱学用于传感实验和机制研究.
准备发光试验纸和复合膜.

主要成果:

一系列具有四边形空间组P4212的双重互穿的3D Ln-MOF (Ln-L) 已成功合成.
Eu-L对四环素及其类似物表现出敏感和选择性的光反应.
快速 (在30秒内) 和定量检测具有低检测极限的四环素 (例如,四环素的0.43μM).
证明了优秀的Eu-L探针的可重复使用性和选择性.
在现场和实时测定水溶液中的四环素的成功应用,使用衍生测试纸和薄膜.

结论:

基于四甲胺AIE连接体的合理设计的Eu-L是一种非常有前途的光传感器,用于检测四环素.
开发的Ln-MOF为敏感,选择性和快速检测抗生素提供了一个可行的平台.
该研究强调了通过便携式传感设备在环境监测和食品安全方面的实际应用潜力.

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