Synchronous fluorescence detection of nitrite in meat products based on dual-emitting dye@MOF and its portable hydrogel test kit
文献类型： 外文期刊
作者： Deng, Siyang 1 ; Liu, Junmei 1 ; Han, Dong 1 ; Yang, Xinting 2 ; Liu, Huan 2 ; Zhang, Chunhui 1 ; Blecker, Christophe 4 ;
作者机构： 1.Chinese Acad Agr Sci, Key Lab Agroprod Proc, Minist Agr & Rural Affairs, Inst Food Sci & Technol, Beijing 100193, Peoples R China
2.Beijing Acad Agr & Forestry Sci, Res Ctr Informat Technol, Beijing 100097, Peoples R China
3.Natl Engn Res Ctr Informat Technol Agr, Beijing 100097, Peoples R China
4.Univ Liege, Unit Food Sci & Formulat, Gembloux Agrobio Tech, Passage Deportes 2, B-5030 Gembloux, Belgium
关键词： Luminescent metal organic framework; Dual-mode detection; On-spot visualization; NO2-; Rh6G@UIO-66-NH2
期刊名称：JOURNAL OF HAZARDOUS MATERIALS （ 影响因子：13.6； 五年影响因子：12.7 ）
ISSN： 0304-3894
年卷期： 2024 年 463 卷
页码：
收录情况： SCI
摘要： A novel ratiometric fluorescent nanoprobe (Rh6G@UIO-66-NH2) was fabricated for efficient nitrite (NO2-) detection in the present study. When NO2- was introduced, it interacted with the amino groups on the surface of Rh6G@UIO-66-NH2, forming diazonium salts that led to the quenching of blue fluorescence. With this strategy, a good linear relationship between NO2- concentration and the fluorescent intensity ratio of the nanoprobe in the range of 1-100 mu M was established, with a detection limit of 0.021 mu M. This dual-readout nanosensor was applied to analyze the concentration of NO2- in real meat samples, achieving satisfactory recovery rates of 94.72-104.52%, highlighting the practical potential of this method. Furthermore, a portable Gel/Rh6G@UIO-66NH2 hydrogel test kit was constructed for on-spot dual-mode detection of NO2-. This kit allows for convenient colorimetric analysis and fluorometric detection when used in conjunction with a smartphone. All the photos taken with the portable kit was converted into digital information using ImageJ software. It provides colorimetric
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