金属有机框架基电化学传感器在食品安全检测中的应用进展

Research progress in electrochemical sensor based on metal-organic framework for food safety detection

中文关键词:  MOF  电化学传感器  食品安全  检测

英文关键词:metal-organic framework  electrochemical sensor  veterinary drug residues  pesticide residues  mycotoxins  heavy metal  food additives

中文摘要:

      为保障食品安全与人类健康, 实现快速、准确现场检测食品中有害物质是控制食品质量的关键。电化学传感器因其响应速度快、灵敏度高、设备易于小型化等优势在快速检测领域具有一定的优势。但食品中有害物质的痕量检测需要更广检测范围和更低检测限, 同时实际样品体系复杂, 对传感器的抗干扰性提出更高的要求。金属有机框架(metal-organic framework, MOF)材料因其可调的孔隙结构、大比表面积、易于修饰等优点, 能够有效提高传感器的灵敏度和选择性, 因此, MOF基电化学传感器被广泛应用于食品中有害物质的检测。本文综述了MOF材料用于构建电化学传感器对食品中危害因素(兽药、农药残留、真菌毒素、重金属、食品添加剂)检测的应用进展, 着重阐述了MOF材料在构建电化学传感器中的优势, 以及复合材料修饰电极中MOF的作用, 同时对MOF材料的不足进行了讨论, 为进一步拓展MOF基电化学传感器在食品安全检测中的应用提供新的思路。

英文摘要:

      To ensure food safety and human health, the rapid and accurate on-site detection of hazardous substances is the key to controlling food quality. Electrochemical sensors have certain advantages in the field of rapid detection due to their advantages of fast response, high sensitivity and easy miniaturization. However, the detection of hazardous substances in actual food samples requires a wider detection range and a lower detection limit. Meanwhile, the actual sample detection system is complex, which places higher demands on the anti-interference of the sensor. Metal-organic framework (MOF) can effectively improve the sensitivity and selectivity of the sensor due to their tunable pore structure, large specific surface area and easy modification. Therefore, MOF based electrochemical sensors are widely used for the detection of hazardous substances in food. Hence, this paper reviewed the application of electrochemical sensors based on MOF for the detection of hazardous substances such as veterinary drugs, pesticide residues, fungal toxins, heavy metals and food additives; highlighted the advantages of MOF materials in the construction of electrochemical sensors and the role of MOF in composite modified electrodes, while discussed the shortcomings of MOF materials to provide new ideas for further expanding the application of MOF-based electrochemical sensors in food safety detection.