气态酸和有机胺响应的超分子凝胶

Supramolecular Gel with Response Towards Gaseous Acid and Organic Amine

超分子凝胶是由有机分子在非共价键作用力驱动下自组装形成的一种具有液态和固态双重性质的软物质。超分子凝胶能对多种外界刺激做出响应,广泛应用于催化和传感等领域。与传统的小分子探针相比,超分子凝胶传感器显示出了多种检测模式和多信号输出的优点,如超分子凝胶材料的内部三维网络结构和较大的接触面积有利于分析物的快速渗透,并且其凝胶状态的变化可以作为检测过程中的输出信号。此外,干凝胶薄膜材料还具有三维网络结构,在检测气体分析物方面表现出优异的检测性能。本文重点介绍了超分子凝胶在气态酸和有机胺检测中的应用以及相关超分子凝胶的设计和检测机理,为构建用于气态酸和有机胺检测的新型超分子凝胶提供了参考。最后总结了超分子凝胶在气态酸和有机胺检测中存在的问题及应用前景。

Supramolecular gels as important soft materials are formed by self⁃assembly of organic molecules under the driving force of non⁃covalent interactions,which can gel organic solvents or water.These materials possess both liquid and solid properties.This kind of materials with the advantages of stimulus response behavior and easy modification is widely used in many fields such as chemistry,biology,medicine and energy.Compared with the traditional small⁃molecule probes,supramolecular gels have many advantages for their application as chemical sensors.For example,the internal three⁃dimensional network structure of supramolecular gel material and its large contact area facilitate the rapid infiltration of analytes,and the change of gel state can be used as the output signal in the detection process.In addition,the xerogel film material also has a three⁃dimensional network structure,which also shows excellent detection performance in the detection of gaseous analytes.This work focuses on the application of supramolecular gels in the detection of gaseous acids and organic amines,as well as the designs and detection mechanisms of supramolecular gels,so as to provide reference for the construction of new supramolecular gels for the detection of gaseous acids and organic amines.Finally,the problems and prospects in the application of supramolecular gels are summarized and prospected.