Determination of Acetamiprid by Fluorescence Monitoring of a Glycine-L-Histidine Copper-Organic Framework Aptasensor

文献类型： 外文期刊

第一作者： Su, Zhipeng

作者： Su, Zhipeng;Ye, Fanyan;Yang, Tao;Li, Wang;Ren, Jiali;He, Kaiyu;He, Kaiyu;He, Kaiyu

作者机构：

关键词： Metal organic framework; aptamer sensor; acetamiprid; fluorescence; glycine-L-histidine

期刊名称：ANALYTICAL LETTERS （ 影响因子：2.329； 五年影响因子：1.738 ）

ISSN： 0003-2719

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收录情况： SCI

摘要： The sensitive determination of pesticides constitutes an important aspect in ensuring food safety. Due to the disadvantages of traditional methods, such as low sensitivity, complex operation, and high cost, the development of an efficient and economical biosensor to detect pesticide residues is required. In this work, the dipeptide glycyl-L-histidine (GH) and divalent copper ions (Cu2+) were employed as bioorganic linkers and metal ions in the synthesis of the peptide-based metal organic framework (MOF) material GH-Cu BioMOF. Because of its properties of fluorescence quenching and adsorption of nucleic acids, GH-Cu BioMOF was used to develop a distinctive aptamer based method for the determination of pesticide residues in food. The GH-Cu BioMOF-based aptasensor was used for acetamiprid and demonstrated a linear response in the range from 0.15 to 3.00 mu M with a detection limit of 137 nM, verifying the feasibility of this method for pesticide determination in food.

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