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
第一作者: Deng, Siyang
作者: Deng, Siyang;Liu, Junmei;Han, Dong;Zhang, Chunhui;Yang, Xinting;Liu, Huan;Yang, Xinting;Liu, Huan;Deng, Siyang;Liu, Junmei;Blecker, Christophe
作者机构:
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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