摘要:
二氧化铈（CeO2）纳米棒因其独特的化学和物理性质在多巴胺（DA）检测中显示出高效的生物兼容性与灵敏度。利用CeO2纳米棒上的无色多巴胺色素检测DA，以克服传统电分析方法中存在的生理干扰物问题。CeO2纳米棒在-0.27 V的低电位下表现出优异的电催化活性，有效还原白光多巴胺色素，其低检测电位有助于避开抗坏血酸（AA）和尿酸（UA）的干扰。通过测量还原电流，能够准确测定DA的浓度。展示了CeO2纳米棒在DA检测中的应用潜力，以及其对提高生物传感器性能的重要性，验证了该传感器在重现性和稳定性方面的优势。研究结果为开发新型高效生物传感器提供了重要的理论依据。
关键词: 二氧化铈纳米棒；多巴胺检测；生物传感器；电催化活性；生理干扰物
Abstract: Cerium dioxide (CeO2) nanorods show efficient biocompatibility and sensitivity in dopamine (DA) detection due to their unique chemical and physical properties. This study aims to use colorless dopamine pigments on CeO2 nanorods to detect DA, to overcome the impact of physiological interferents in conventional electroanalytical methods. CeO2 nanorods show excellent electrocatalytic activity at a low potential of -0.27 V, which efficiently reduces the white-light dopamine pigments, and their low detection potential helps to avoid the interference of ascorbic acid (AA) and uric acid (UA). The concentration of DA could be accurately determined by measuring the reduction current. It demonstrates the great application potential of CeO2 nanorods in DA detection and its importance in improving the performance of the biosensor. The advantages of the sensor in terms of reproducibility and stability are verified. The study results provide an important theoretical basis for the development of new and efficient biosensors.
Keywords: cerium dioxide nanorods; dopamine detection; biosensor; electrocatalytic activity; physiological interferents
关键词: 二氧化铈纳米棒；多巴胺检测；生物传感器；电催化活性；生理干扰物
Abstract: Cerium dioxide (CeO2) nanorods show efficient biocompatibility and sensitivity in dopamine (DA) detection due to their unique chemical and physical properties. This study aims to use colorless dopamine pigments on CeO2 nanorods to detect DA, to overcome the impact of physiological interferents in conventional electroanalytical methods. CeO2 nanorods show excellent electrocatalytic activity at a low potential of -0.27 V, which efficiently reduces the white-light dopamine pigments, and their low detection potential helps to avoid the interference of ascorbic acid (AA) and uric acid (UA). The concentration of DA could be accurately determined by measuring the reduction current. It demonstrates the great application potential of CeO2 nanorods in DA detection and its importance in improving the performance of the biosensor. The advantages of the sensor in terms of reproducibility and stability are verified. The study results provide an important theoretical basis for the development of new and efficient biosensors.
Keywords: cerium dioxide nanorods; dopamine detection; biosensor; electrocatalytic activity; physiological interferents