Determination of Acetamiprid by Fluorescence Monitoring of a Glycine-L-Histidine Copper-Organic Framework Aptasensor
文献类型： 外文期刊
作者： Su, Zhipeng 1 ; Ye, Fanyan 1 ; He, Kaiyu 2 ; Yang, Tao 1 ; Li, Wang 1 ; Ren, Jiali 1 ;
作者机构： 1.Cent South Univ Forestry & Technol, Natl Engn Lab Deep Proc Rice & Byprod, Hunan Prov Key Lab Edible Forestry Resources Safe, Changsha 410004, Peoples R China
2.Zhejiang Acad Agr Sci, Key Lab Detect Pesticide Residues & Control Zheji, Hangzhou, Peoples R China
3.Zhejiang Acad Agr Sci, State Key Lab Managing Biot & Chem Threats Qual &, Hangzhou, Peoples R China
4.Zhejiang Acad Agr Sci, Inst Agroprod Safety & Nutr, Hangzhou, Peoples R China
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
年卷期：
页码：
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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