Portable fluorogenic probe for monitoring of volatile amine vapour and food spoilage  

作　　者：Jian-Hao Zhao Wen-Xing Xu Bin Li Wei Xu Wu-Kun Zhang Ming-Shuai Yuan Hui-Zi Li Qing-Guo He Xiang Ma Jian-Gong Cheng Yan-Yan Fu 

机构地区：[1]State Key Lab of Transducer Technology,Shanghai Institute of Microsystem and Information Technology,Chinese Academy of Sciences,Shanghai 200050,China [2]Center of Materials Science and Optoelectronics Engineering,University of the Chinese Academy of Sciences,Beijing 100039,China [3]School of Physical Science and Technology,ShanghaiTech University,Shanghai 201210,China [4]Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center Frontiers Science Center for Materiobiology and Dynamic Chemistry,School of Chemistry and Molecular Engineering,East China University of Science and Technology,Shanghai 200237,China

出　　处：《Chinese Chemical Letters》2024年第3期257-261,共5页中国化学快报（英文版）

基　　金：supported by the National Key Research and Development Program of China(No.2022YFB3203500);the National Natural Science Foundation of China(Nos.62022085,61831021);the Science and Technology Commission of Shanghai Municipality(No.22QA1410800)。

摘　　要：There are urgent needs of volatile amine gas sensors with high-performance in food quality control,disease monitoring and environmental pollution.Thin-film fluorescent probe is suitable for amine vapour sensing due to its high sensitivity,high selectivity,and no polluting analyte.Herein,a novel fluorescent probe based on indacenodithiophene structure withπconjugated system was designed and synthesized.The experimental results show that the films prepared by this material exhibit rapid and distinct fluorescence quenching after being exposed to saturated vapours of primary amine,secondary amine and tertiary amine represented by n-propylamine,diethylamine and trimethylamine,respectively.The quenching of fluorescence is 84%,87%and 96%,respectively,within 10 s.The detection mechanism of probe for primary amine is based on specific chemical reaction,while the detection mechanism for secondary amine and tertiary amine is intramolecular charge transfer.Further experiments show that the detection limit of the fluorescent probe for trimethylamine,an important marker of food spoilage,could reach 4.610 ppt.On-site detection based on spoilage of small yellow croaker suggests the material possesses the potential for food freshness detection.This simple fluorogenic probe is an original approach to simplify real-time visual monitoring of volatile amine vapour.

关 键 词：Fluorescent probe Volatile amine Gas sensing TRIMETHYLAMINE Food spoilage 

分 类 号：TS207.3[轻工技术与工程—食品科学] O657.3[轻工技术与工程—食品科学与工程]