生物分子自组装制备微纳米金片

发布时间：2018-10-11 11:36

【摘要】：近年来随着石墨烯中电子的二维量子约束效应的发现,二维结构纳米材料的各向异性性能和量子尺寸效应激发了研究者们广泛的研究兴趣。片状微纳金单晶作为二维纳米材料之一,具有独特的结构以及优异的性能,在电学,光学,传感以及生物制药方面都有着一个巨大的应用潜力,引起了研究者们的广泛关注。目前研究发现的微纳米金片制备方法已经很多,其中生物分子制备方法尤为突出。本课题中我们分别利用了β-乳球蛋白,氨基酸和甲壳素纳米纤维还原四氯金酸制备二维微纳米金晶体。首先利用β-乳蛋白作为还原剂合成了大尺寸微纳米金片材料,并与聚氨酯复合制备了一种新颖的弹性导电复合材料。同时,通过利用不同氨基酸作为还原剂,研究了不同氨基酸对于还原制备二维金单晶形貌尺寸控制作用的差异。最后利用甲壳素纳米纤维成功制备了微纳金片结构。利用β乳球蛋白为原料成功制备了二维微纳金单晶,其具有10000μm2的表面积,并与聚氨酯复合制备了一种应力敏感的弹性导电复合材料。我们利用五种氨基酸非别还原制备了不同尺寸结构的二维微纳金单晶。通过利用甲壳素纳米纤维作为还原剂,第一次成功制备了二维的纳米金片。二维结构的微纳米金片可以被用于光学器件,电学器件,其在生物医药方面也具备很大的发展潜
[Abstract]:In recent years, with the discovery of two-dimensional quantum confinement effect of electrons in graphene, the anisotropic properties and quantum size effects of two-dimensional nanostructured materials have aroused extensive research interest. As one of the two-dimensional nanocrystalline materials, flake nanocrystalline nanocrystals have a great potential in electrical, optical, sensing and biopharmaceutical applications, and have attracted wide attention of researchers. At present, many methods have been found for the preparation of micro-and nano-gold tablets, especially biomolecules. In this paper, we used 尾-lactoglobulin, amino acid and chitin nanofibers to reduce tetrachloroauric acid to prepare two-dimensional micro-gold crystals. A novel elastic conductive composite was prepared by using 尾 -lactoprotein as reducing agent. At the same time, by using different amino acids as reducing agent, the effect of different amino acids on the size control of two-dimensional single crystal was studied. Finally, the micro-gold sheet structure was successfully prepared by chitin nanofibers. Two-dimensional nanocrystalline gold monocrystalline was prepared by using 尾 -lactoglobulin as raw material. It has a surface area of 10000 渭 m ~ 2. A stress-sensitive elastic conductive composite was prepared by using 尾 -lactoglobulin as raw material. Two dimensional nanocrystalline gold monocrystals with different sizes were prepared by five amino acids reduction. By using chitin nanofibers as reducing agent, two dimensional gold nanoparticles were successfully prepared for the first time. Two-dimensional micro and nano gold wafers can be used in optical devices and electrical devices, and have great potential in biomedicine.
【学位授予单位】：青岛科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TB383.1;O614.123

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