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Covalent molecularly imprinted electrochemical sensor modulated by borate ester bonds for hygromycin B detection based on the synergistic signal amplification of Cu-MOF and MXene
Food Chemistry ( IF 8.5 ) Pub Date : 2022-02-10 , DOI: 10.1016/j.foodchem.2022.132382 Haiyang Wang 1 , Lin Cai 1 , Yuwei Wang 1 , Chang Liu 1 , Guozhen Fang 1 , Shuo Wang 2
Food Chemistry ( IF 8.5 ) Pub Date : 2022-02-10 , DOI: 10.1016/j.foodchem.2022.132382 Haiyang Wang 1 , Lin Cai 1 , Yuwei Wang 1 , Chang Liu 1 , Guozhen Fang 1 , Shuo Wang 2
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A molecularly imprinted electrochemical sensor (MIES) modified with Cu-MOF and TiCTx was successfully prepared for the detection of hygromycin B in food. According to the pH sensitive property of reversible borate ester bonds, a molecularly imprinted polymers (MIP) were constructed on the modified gold electrode (GE) surface by electropolymerization to realize the controllable elution and adsorption of template molecules. Cu-MOF with large specific surface area and TiCTx with excellent electrical conductivity cooperate to improve the overall analytical performance of MIES. The morphology and electrochemical performance of the sensor were evaluated. Under the optimal experimental conditions, the method showed superior selectivity to hygromycin B with a linear range of 5 × 10–5 × 10 M and a detection limit of 1.92 × 10 M (S/N = 3). The detection results of this method are in good agreement with HPLC-MS/MS, which proves that the method has reliable practicability and accuracy.
中文翻译：
基于Cu-MOF和MXene协同信号放大的硼酸酯键调制的共价分子印迹电化学传感器用于潮霉素B检测
成功制备了Cu-MOF和TiCTx修饰的分子印迹电化学传感器（MIES），用于食品中潮霉素B的检测。根据可逆硼酸酯键的pH敏感特性，通过电聚合在修饰金电极（GE）表面构建分子印迹聚合物（MIP），实现模板分子的可控洗脱和吸附。具有大比表面积的Cu-MOF和具有优异导电性的TiCTx协同提高了MIES的整体分析性能。评估了传感器的形貌和电化学性能。在最佳实验条件下，该方法对潮霉素 B 具有优异的选择性，线性范围为 5 × 10-5 × 10 M，检测限为 1.92 × 10 M（S/N = 3）。该方法的检测结果与HPLC-MS/MS吻合较好，证明该方法具有可靠的实用性和准确性。
更新日期：2022-02-10
中文翻译：
基于Cu-MOF和MXene协同信号放大的硼酸酯键调制的共价分子印迹电化学传感器用于潮霉素B检测
成功制备了Cu-MOF和TiCTx修饰的分子印迹电化学传感器（MIES），用于食品中潮霉素B的检测。根据可逆硼酸酯键的pH敏感特性，通过电聚合在修饰金电极（GE）表面构建分子印迹聚合物（MIP），实现模板分子的可控洗脱和吸附。具有大比表面积的Cu-MOF和具有优异导电性的TiCTx协同提高了MIES的整体分析性能。评估了传感器的形貌和电化学性能。在最佳实验条件下，该方法对潮霉素 B 具有优异的选择性，线性范围为 5 × 10-5 × 10 M，检测限为 1.92 × 10 M（S/N = 3）。该方法的检测结果与HPLC-MS/MS吻合较好，证明该方法具有可靠的实用性和准确性。
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