LMOF serve as food preservative nanosensor for sensitive detection of nitrite in meat products

文献类型： 外文期刊

第一作者： Deng, Siyang

作者： Deng, Siyang;Zhang, Chunhui;Liu, Huan;Yang, Xinting;Liu, Huan;Yang, Xinting;Deng, Siyang;Blecker, Christophe

作者机构：

关键词： Nitrite; Rhodamine 6G; Luminescent metal organic framework; Meat products

期刊名称：LWT-FOOD SCIENCE AND TECHNOLOGY （ 影响因子：6.0； 五年影响因子：6.0 ）

ISSN： 0023-6438

年卷期： 2022 年 169 卷

页码：

收录情况： SCI

摘要： Nitrite (NO2) is widely present in meat products as a vital food preservative, while excessive nitrite is a serious carcinogen to human beings, developing a sensitive and selective nitrite detection method is of great significance for food safety. Herein, a novel luminescent metal organic framework (LMOF) (Rh6G@MOF-5) is prepared through a facile one-pot synthesis as a fluorescent turn-off sensor for NO2- determination. Upon exposure to NO2-, significant fluorescence intensity decreases linearly along with NO2- concentration in the range of 0-200 mu mol/L and the detection limit is estimated to be 0.2 mu mol/L. The developed nanocomposite has been shown to be an ultrasensitive and selective nanoprobe for detecting NO2- in meat products, with recoveries ranging from 96.1% to 103.2% with the RSDs less than 4%. Rh6G@MOF-5 nanoprobe offers insight into the fabrication of MOF-based sensors with low cost and convenient operation in analyte detection field.

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