一种用于食品中葡萄糖高效检测的新型中空 CuMn-PBA@NiCo-LDH 纳米盒。
A novel hollow CuMn-PBA@NiCo-LDH nanobox for efficient detection of glucose in food.
机构信息
Key Laboratory of Land Resources Evaluation and Monitoring in Southwest, Ministry of Education, Sichuan Normal University, Chengdu 610068, China; College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, Sichuan, China.
College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, Sichuan, China.
出版信息
Food Chem. 2024 Apr 16;438:137969. doi: 10.1016/j.foodchem.2023.137969. Epub 2023 Nov 10.
Designing a rapid and sensitive glucose detection method is of great significance to public health. Herein, hollow CuMn-PBA@NiCo-LDH nanoboxes (CuMn-PBA@NiCo-LDH NBs) were prepared using acid etching, cation exchange, and reflux method. The modified electrode exhibited outstanding electrocatalytic performance for glucose oxidation due to the unique hollow nanostructure and synergistic effects. The CuMn-PBA@NiCo-LDH NBs electrode displayed excellent electrocatalytic oxidation activity for glucose in an alkaline solution. Under optimal conditions, the electrode achieved a wide linear range (0.0005-1 mmol L, and 1-7 mmol L) and high sensitivity (10,300 μA L/mmol cm and 5310 μA L/mmol cm), with a limit of detection (LOD) of 19 nmol L. The feasibility of the sensor applied to the detection of glucose was verified in real food samples through spiked recovery experiments. This electrode material offers an alternative method for the non-enzymatic glucose sensors.
设计一种快速、灵敏的葡萄糖检测方法对公共健康具有重要意义。在此，采用酸蚀、阳离子交换和回流法制备了中空 CuMn-PBA@NiCo-LDH 纳米盒（CuMn-PBA@NiCo-LDH NBs）。由于独特的中空纳米结构和协同效应，修饰电极对葡萄糖氧化表现出优异的电催化性能。在碱性溶液中，CuMn-PBA@NiCo-LDH NBs 电极对葡萄糖表现出优异的电催化氧化活性。在最佳条件下，电极在 0.0005-1 mmol L 和 1-7 mmol L 范围内具有较宽的线性范围和较高的灵敏度（10,300 μA L/mmol cm 和 5310 μA L/mmol cm），检测限（LOD）为 19 nmol L。通过加标回收实验验证了该传感器在实际食品样品中检测葡萄糖的可行性。该电极材料为非酶葡萄糖传感器提供了一种替代方法。
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