本项目采用淀粉样多肽Aβ片段通过自组装制备肽纳米管，并修饰氯化血红素Hemin等功能分子得到肽自组装复合纳米材料，用于环境污染物检测及清除方面的研究。通过改变自组装多肽片段的序列以及按不同序列不同比例混合进行自组装，再修饰功能分子，或直接进行共组装的方式制得一系列肽自组装复合纳米材料。采用现代表征手段，考查多肽序列、不同序列的比例、功能分子的复合方式等因素对材料结构、性能的影响，深入研究其催化能力与结构之间的关系，为进一步用于环境污染物分析提供理论支撑。探究环境污染物对材料催化能力的影响，并阐明材料对环境污染物的相互作用以及选择性识别机理，并以此建立相关污染物的高灵敏、可视化检测方法，并将该材料再进一步用于相关有机染料的清除。

In this project, the sequence derived from amyloid β will be used to prepare peptide nanotubes through self-assembling. After modifying with certain functional molecules such as hemin, the obtained hemin/peptide nanotubes hybrid will be applied for visual detection of environmental pollutants. A series of hemin/peptide nanotubes hybrids are obtained by changing the sequence of self-assembling peptide or mixing two kinds of sequences with different ratios to self-assembly. The effects of the peptide sequence, the ratio of the peptide and the modification method of functional molecules on the structures and properties of the nanohybrids will be studied by using various modern characterization techniques and the results will provide a powerful theoretical foundation for their applications in environmental pollutant analysis. In addition, the interaction and recognition mechanisms between the hemin/peptide nanotubes hybrids material and environmental pollutants will be deduced. Then the sensitive and visual detection for relevant pollutants will be constructed. And further, the materials have the potential to remove certain of organic dyes by absorption and degradation.