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A Configurationally Tunable Perylene Bisimide Derivative-based Fluorescent Film Sensor for the Reliable Detection of Volatile Basic Nitrogen towards Fish Freshness Evaluation

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Chinese Journal of Chemistry 2022年第2期40卷 201-208页

作者： Qingwei Jiang Zhaolong Wang Gang Wang Ke Liu Wenjun Xu congdi shang Xinyu Gou Taihong Liu Yu Fang Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education School of Chemistry and Chemical EngineeringShaanxi Normal UniversityXi'anShaanxi 710119China School of Materials Science and Engineering Shaanxi Normal UniversityXi'anShaanxi 710119China School of Food Science and Engineering Northwest A&F UniversityYanglingShaanxi 712100China

Rapid and real-time mon itoring of food quality plays critical roles in the food industry and for the gen era I public health.Herei n,we specially synthesized a new perylene bisimide(PBI)derivative(PCB-EpE)composed of two PBI units and a rigid o-carborane linker,which was further employed in constructi ng a con ceptual fluoresce nt film sen sor for evaluati ng fish fresh ness.Photophysical studies indicate that PCB-EpE displays an open"Z-type"molecular configuration in chloroform and a closed"△-type"configuration in methyl cyclohexa ne.Comparatively,"Z-type"molecular configurati on possesses higher fluoresce nee qua ntum yield and is more sen sitive toward volatile basic nitrogen(VBN).

关键词： Fluorescence Sensors Trace analysis Perylene bisimide Food freshness

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Nonplanar Perylene Monoimide-Based Fluorescent Film for Enhanced BTX Sensing

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Chinese Journal of Chemistry 2021年第8期39卷 2088-2094页

作者： Meiling Zhang Nannan Ding Fayan Lai congdi shang Rong Miao Zhongshan Liu Yu Fang Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education School of Chemistry and Chemical EngineeringShaanxi Normal UniversityXi'anShaanxi 710062China School of Materials Science and Engineering Shaanxi Normal UniversityXi'anShaanxi 710062China

Film-based fluoresce nt sen sors have been adapted into portable devices for the vapor phase detecti on.The satisfactory sensing performs nee(e.g.,sen sitivity,selectivity,reusability)largely bene fits from fluorophores.

关键词： Fluoresce nee Sensor Aggregation Perylene monoimide BTX

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A fluorescent film sensor for high-performance detection of Listeria monocytogenes via vapor sampling

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聚集体(英文) 2023年第1期4卷 165-172页

作者： Rongrong Huang Meiqi Li Dehui Lin Yangtao Shao congdi shang Qianqian Liu Guijun Liu Nan Li Rong Miao Haonan Peng Yanli Tang Yu Fang Key Laboratory of Applied Surface and Colloid Chemistry(Ministry of Education) School of Chemistry and Chemical EngineeringShaanxi Normal UniversityXi’anChina Shaanxi Engineering Laboratory for Food Green Processing and Safety Control College of Food Engineering and Nutritional ScienceShaanxi Normal UniversityXi’anChina Department of Food Safety College of Food Science and EngineeringNorthwest A&F UniversityShaanxiChina

Foodborne Listeria monocytogenes poses serious threats to public health.Fast and sensitive detection of the pathogen at the point of contamination is thus crucial to halt the spread of bacteria-related diseases.Herein,we report for the first time a fluorescent film sensor to detect the biomarker of L.monocytogenes,3-hydroxy-2-butanone.The sensor demonstrated unprecedented sensing performance for the analyte with a detection limit lower than 0.05 mg/m^(3),response time less than 1 s,full reversibility,and excellent selectivity.Further study showed that the sensor can be used to monitor the growth of L.monocytogenes with much-improved sensitivity.The superior performance of the sensor is ascribed to the specific binding,efficient charge transfer emission,and porous adlayer structure of the specially designed sensing fluorophore-based film.Our work paves the way to develop a portable detector to meet the needs for on-site and real-time detection of foodborne pathogens.

关键词： 3-hydroxy-2-butanone biomarkers fluorescent film sensors Listeria monocytogenes

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Synthesis and Self-Assembly Behavior of A New Perylene Bisimide Derivative with Cholesterol and Pyrene as Modifying Structures

Synthesis and Self-Assembly Behavior of A New Perylene Bisim...

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中国化学会第十五届胶体与界面化学会议

作者： Gang Wang congdi shang Junxia Peng Yu Fang Key Laboratory of Applied Surface and Colloid Chemistry Ministry of EducationSchool of Chemistry and Chemical EngineeringShaanxi Normal University

＜正＞It is generally accepted that perylene bisimide（PBI）derivatives are widely used for investigation of self-assembly processes and relevant mechanisms due to their special photoelectronic properties and strongπ-πinteraction.In this work,we successfully synthesized an asymmetric PBI derivative with cholesterol and pyrene as the modifying structures.It was

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