用于组装无机纳米粒子超级晶体的二元蛋白质晶体
Matthias Künzle1, Thomas Eckert2, Tobias Beck1
1Institute of Inorganic Chemistry, RWTH Aachen University , 52074 Aachen, Germany.
Journal of the American Chemical Society
|September 13, 2016
概括
具有相反电荷的工程蛋白质容器自组装成有序的生物混合材料. 这些蛋白质晶体可以将各种无机纳米粒子组装成超级网格.
科学领域:
- 生物材料科学
- 纳米技术
- 结构生物学
背景情况:
- 生物分子可以指导无机物质的组织.
- 蛋白质容器可以作为新生物混合材料的构建块.
研究的目的:
- 使用工程蛋白质容器构建一种新的生物混合材料.
- 研究这些蛋白质结构的自组合特性和模板能力.
主要方法:
- 两种类型的蛋白质容器具有对立的表面电荷.
- 使用这些蛋白质作为自我组装的基石.
- 将无机纳米颗粒纳入蛋白质腔.
- 描述由此产生的生物混合结构和超级网格.
主要成果:
- 实现了具有晶体秩序的二进制结构,形成四角格子.
- 证明了用无机纳米粒子填充蛋白质容器腔的能力.
- 制造出高度有序的二元纳米粒子超级晶体,其尺寸高达数百微米.
- 证实晶体结构和晶格参数与纳米粒子载荷无关.
结论:
- 工程蛋白容器可以自组装成有序的生物混合材料.
- 这些蛋白质纳米粒子复合物形成稳定,高度有序的超级网格.
- 蛋白质材料作为组装各种纳米粒子类型的多功能矩阵.
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