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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

查看全文 作　　者：Qingwei [1,2]Jiang;Zhaolong [1]Wang;Gang [1]Wang;Ke [1]Liu;Wenjun [1]Xu;Congdi [3]Shang;Xinyu [1,2]Gou;Taihong [1]Liu;Yu [1]Fang 高影响力作者 机构地区：[1]Key Laboratory of Applied Surface and Colloid Chemistry of Ministry of Education,School of Chemistry and Chemical Engineering,Shaanxi Normal University,Xi'an,Shaanxi 710119,China;[2]School of Materials Science and Engineering,Shaanxi Normal University,Xi'an,Shaanxi 710119,China;[3]School of Food Science and Engineering,Northwest A&F University,Yangling,Shaanxi 712100,China高影响力机构 出　　处：《Chinese Journal of Chemistry》索引2022年第40卷第2期,共8页高影响力期刊 基　　金：We ack no wledge the fundi ng from the Nati onal Natural Science Foundation of China(21820102005),111 project(B14041);the Fun dame ntal Research Funds for the Cen tral Un iversities(GK202001005 and GK202003034);the Innovation Capability Support Program of Shaanxi(2021TD-18);the Youth Innova-tion Team of Shaanxi Universities. 摘　　要：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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