首页|Pillar[5]arene and Azine Derivative Assembly Improved Dual-Channel Detection of CN-

Pillar[5]arene and Azine Derivative Assembly Improved Dual-Channel Detection of CN-

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The cyanide anion(CN-)is known to be one of the most toxic anions.Therefore,there is an urgent need to develop a reliable,sensi-tive,selective,rapid and effective method for the detection of CN-.Here,a self-assembly strategy based on pillar[5]arene P5 and az-ine derivative AZ was used to construct supramolecular sensors,and it was found that the detection effect of CN-was significantly improved by the assembly strategy.The sensitivity of the assembled sensor P5-AZ to CN-is more than 10 times higher than that of AZ.The detect mechanism was further investigated by theoretical calculations and 1H NMR.The results showed that AZ detects CN-by a deprotonation process with fluorescence enhancement,while P5-AZ improves the sensitivity of CN-recognition through hydro-gen bonding,anion-n and anion-dipole interactions,as well as the strong bonding ability of the assembly.Supramolecular assembly P5-AZ has the advantages of low toxicity,high sensitivity,and more importantly,it provides a method to detect CN-sensitivity in the aqueous phase and organisms by host-guest assembly.

Host-guest assemblyImproves sensing sensitivityPillar[5]areneAzine derivativeCyanideSupramolecular sensorsEnergy transferColorimetric/fluorescence dual-channelFluorescence cell imaging

Qing-Ling Su、Jin-Fa Chen、Xiao-Mei Sun、Juan Liu、Xin-Yu Dai、Tai-Bao Wei、Hong Yao、Qi Lin

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Key Laboratory of Eco-functional Polymer Materials of the Ministry of Education,Key Laboratory of Eco-environmental Polymer Materials of Gansu Province,College of Chemistry and Chemical Engineering,Northwest Normal University,Lanzhou,Gansu 730070,China

Key Laboratory of Environment-Friendly Composite Materials of the State Ethnic Affairs Commission,Gansu Provincial Biomass Function Composites Engineering Research Center,College of Chemical Engineering,Northwest Minzu University(Northwest University for Nationalities),Xibei Xincun,Lanzhou,Gansu 730000,China

2024

10.1002/cjoc.202400394

中国化学(英文版)
中国化学会 上海有机化学研究所

中国化学(英文版)

CSTPCD
影响因子：0.848
ISSN：1001-604X
年,卷(期)：2024.42(20)
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