江苏省农业科学院机构知识库

Isolation and Identification of the DNA Aptamer Target to Acetamiprid

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文献类型：外文期刊

作者： He, Jiang ¹ ; Liu, Yuan ¹ ; Fan, Mingtao ² ; Liu, Xianjin ¹ ;

作者机构： 1.Jiangsu Acad Agr Sci, Inst Food Qual Safety & Detect,Minist Agr, Key Lab Food Qual & Safety Jiangsu Prov, Key Lab Food Safety Monitoring & Management, Nanjing 210014, Jiangsu, Peoples R China

2.NW A&F Univ, Coll Food Sci & Engn, Yangling 712100, Shaanxi, Peoples R China

关键词： Aptamer;pesticide;acetamiprid;SELEX

期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （影响因子：5.279；五年影响因子：5.269 ）

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收录情况： SCI

摘要： As an alternative to antibodies, aptamers have a great potential as analytical tools for pesticide detection. In this work, aptamers targeting acetamiprid were selected by a specific systematic evolution of ligands by exponential enrichment (SELEX) strategy, where a single-stranded DNA (ssDNA) library was immobilized and target modification was eliminated. After 18 rounds of repeated selection, the ssDNA pool was enriched and then 14 sequences were selected and carefully identified. At last, an acetamiprid-specific aptamer with the apparent dissociation constant (K_d) estimated to be 4.98 μM was successfully obtained. Further work is ongoing to develop an aptamer-based detection method for field determination of this pesticides in agricultural products and environmental samples.

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Isolation and Identification of the DNA Aptamer Target to Acetamiprid

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