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Multi-color fluorescence sensing platform for visual determination of norfloxacin based on a terbium (Ш) functionalized covalent organic framework.
Zhou, Zexi; Wen, Xiaohui; Shi, Chaoting; Wu, Lan; Long, Zhou; He, Juan; Hou, Xiandeng.
Afiliación
  • Zhou Z; Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China.
  • Wen X; Analytical & Testing Center, Sichuan University, Chengdu, Sichuan 610064, China.
  • Shi C; Analytical & Testing Center, Sichuan University, Chengdu, Sichuan 610064, China.
  • Wu L; Analytical & Testing Center, Sichuan University, Chengdu, Sichuan 610064, China.
  • Long Z; Analytical & Testing Center, Sichuan University, Chengdu, Sichuan 610064, China.
  • He J; Analytical & Testing Center, Sichuan University, Chengdu, Sichuan 610064, China. Electronic address: hejuan1117@scu.edu.cn.
  • Hou X; Key Laboratory of Green Chemistry & Technology, Ministry of Education, College of Chemistry, Sichuan University, Chengdu, Sichuan 610064, China; Analytical & Testing Center, Sichuan University, Chengdu, Sichuan 610064, China. Electronic address: houxd@scu.edu.cn.
Food Chem ; 417: 135883, 2023 Aug 15.
Article en En | MEDLINE | ID: mdl-36921364
Sensitive and visual determination of fluoroquinolone antibiotics (FQs) is of great significance since their abuse and inappropriate handling can be problematic. Herein, we propose a lanthanide covalent organic framework fluorescence sensing system (Tb@COF-Ru) with visualization capability to determine the FQs level, where Tb@COF was employed as the sensing probe, while the red-emitting Ru(bpy)32+ serves as a constant red fluorescent background. With increasing norfloxacin concentration, the green fluorescence of Tb3+ is gradually enhanced, finally realizing the multicolor fluorescence change from red to green. With a smartphone for RGB analysis, visual monitoring and quantitative analysis were realized without any sophisticated instrument. Limits of detection for the fluorescence quantitative and visual mode for norfloxacin were 0.33 nM and 7.3 µM, respectively. This method was rapid (1 min) and visualized, providing a simple analysis of various food matrices (honey, milk, egg and beef) and water samples for trace FQs.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Elementos de la Serie de los Lantanoides / Estructuras Metalorgánicas Límite: Animals Idioma: En Revista: Food Chem Año: 2023 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Elementos de la Serie de los Lantanoides / Estructuras Metalorgánicas Límite: Animals Idioma: En Revista: Food Chem Año: 2023 Tipo del documento: Article País de afiliación: China Pais de publicación: Reino Unido