表面高密度分子印记的磁性纳米粒子在持久性有机污染物治理中的应用

项目名称： 表面高密度分子印记的磁性纳米粒子在持久性有机污染物治理中的应用

项目编号： No.20807042

项目类型： 青年科学基金项目

立项/批准年度： 2009

项目学科： 化学工业

项目作者： 刘变化

作者单位： 中国科学院合肥物质科学研究院

项目金额： 19万元

中文摘要： 持久性有机污染物（POPs）对于生态系统和人类健康的影响已经引起国家和社会的密切关注。开展有中国地域特点及污染特征的POPs治理研究已迫在眉睫、刻不容缓。分子印记技术和纳米科技的发展使得分子印记纳米材料在POPs的治理方面有很大的潜力和优势。在本研究项目中，我们将从分子印记技术和纳米化学的基本原理出发，在磁性纳米粒子的表面发展分子印记技术，运用分子组装设计及纳米合成等手段，重点针对有机氯农药设计和制备具有高密度分子识别位点的人工抗体磁性纳米结构。利用所制备的人工抗体纳米结构表面的印记位点对农药分子的高度亲和力和快速识别能力，达到对有机农药分子的靶向富集和快速回收。所选用的磁性纳米材料，为所富集的农药分子的快速收集、分离和回收再利用提供了可能。本项研究的预期成果将为持久性有机污染物的治理和环境修复找到一条新的途径。对我国的环境安全、人类健康，以及实现环境和社会的可持续性发展具有重要的意义。

中文关键词： 分子印记；磁性材料；分子识别；靶向富集；持久性有机污染物

英文摘要： Persistent Organic Pollutants(POPs) are highly environmentally deleterious substances that have been of pressing societal concerns due to their damage to ecosystem and human health, and therefore the techniques of POPs treatment and environmental rehabilitation have attracted considerable research efforts in recent years. Molecular imprinting nanomaterials have great potential advantages in the POPs treatment and environmental rehabilitation due to the new development of molecular imprinting and nanomaterial techniques. In this project,by employing the molecule assembly design strategies and nanosynthesis techniques,we will develop the strategy for highly-dense imprinting of pesticide molecules at the surface of magnetic nanoparticles. The molecular-imprinted magnetic nanopatricles with high density imprinted sites exhibit great binding capacity, and fast recognition ability to uptake the pesticide molecules.Thus it is possible to efficiently enrich the pesticide residues from the environment by the introduction of the imprinted magnetic materials, and the pesticide residue can be easily collected and recycled by simply adding an outer magnetic field. The anticipate results of this project will open a new pathway to eliminate the POPs pollutions and rehabilitate the environment, which is also important to the environment security, human health and the continuable development of environment and society.

英文关键词： molecular imprinting; maganetic nanomaterials;molecular recognition; target enrichment; POPs