Research on Polydopamine Functionalized Composite and Its Application in Food Safety Detection
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摘要: 多巴胺分子在弱碱性条件下容易自聚,并能在各种材料表面沉积形成聚多巴胺(polydopamine,PDA)涂层。PDA能够优化基体材料性能并赋予其亲水性、抗污性能、抗菌性能、生物相容性等,为材料表面的进一步功能化修饰提供了理想的平台。本文对近年来多种PDA功能化复合材料的研究现状进行了归纳和总结,包括聚多巴胺功能化金属纳米粒子、聚多巴胺功能化碳基纳米材料、聚多巴胺功能化金属有机框架、聚多巴胺分子印迹聚合物等,并突出介绍了其在食品中农兽药残留、重金属残留及其它痕量有机污染物检测中的应用,为食品样品前处理技术的发展提供了新的研究方向。Abstract: Dopamine molecules are easy to self-polymerize under weak alkaline conditions, and can deposit on the surface of various materials to from a polydopamine (PDA). PDA can optimize the properties of the substrate materials, equiped it with excellent hydrophilicity, antifouling, antibacterial performance and biocompatibility, which provide an ideal platform for further functional modification on material surface. The recent research status of various PDA functionalized composite, including polydopamine-functionalized metal nanoparticles, polydopamine-functionalized carbon-based nanomaterials, polydopamine-functionalized metal-organic framework and polydopamine molecular imprinting polymers were summarized, their application in the detection of pesticide and veterinary drug residues, heavy metal residues and other trace organic pollutants in food were introduced, which could provide a new research direction for the development of food sample pretreatment technology.
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