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

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

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There are urgent needs of volatile amine gas sensors with high-performance in food quality control,dis-ease 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 with π conjugated system was designed and synthesized.The experimental results show that the films prepared by this material exhibit rapid and distinct fluores-cence quenching after being exposed to saturated vapours of primary amine,secondary amine and ter-tiary 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 pri-mary 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.

Fluorescent probeVolatile amineGas sensingTrimethylamineFood spoilage

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

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State Key Lab of Transducer Technology,Shanghai Institute of Microsystem and Information Technology,Chinese Academy of Sciences,Shanghai 200050,China

School of Physical Science and Technology,ShanghaiTech University,Shanghai 201210,China

Center of Materials Science and Optoelectronics Engineering,University of the Chinese Academy of Sciences,Beijing 100039,China

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

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国家重点研发计划国家自然科学基金国家自然科学基金上海市科委项目

2022YFB3203500620220856183102122QA1410800

2024

10.1016/j.cclet.2023.108579

中国化学快报(英文版)
中国化学会

中国化学快报(英文版)

CSTPCD
影响因子：0.771
ISSN：1001-8417
年,卷(期)：2024.35(3)
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