从宏观到纳米的模板使用纳米基因.
Wojciech Pisula1, Marcel Kastler, Daniel Wasserfallen
1Max-Planck-Institut für Polymerforschung, 55128 Mainz, Germany.
Journal of the American Chemical Society
|November 9, 2006
概括
六环六enzocoronene分子在宏观毛细血管内自组织成长,对齐的柱状结构. 纳米孔模板进一步改进了这种超分子组织,使纳米棒和捆绑中的应用成为可能.
科学领域:
- 材料科学 材料科学 材料科学
- 超分子化学 超分子化学
- 纳米技术 纳米技术
背景情况:
- 六环六enzocoronenes (HPHs) 是以自我组装而闻名的光盘液晶.
- 控制HPH的自我组织对于先进的材料应用至关重要.
研究的目的:
- 在纳米和宏观模板中研究特定的HPH衍生物的自我组织.
- 探索模板维度对超分子组织的影响.
- 评估创造有序纳米结构的潜力.
主要方法:
- 在玻璃毛细血管和纳米孔状膜中处理带有分支基链的六次-四次-hexabenzocoronene.
- 通过冷却从同otropic 阶段观察自我组织.
- 由此产生的超分子结构的表征.
主要成果:
- 在宏观毛细血管轴 (几厘米) 沿着柱状HPH结构的非凡远程对齐.
- 毛细血管曲率对方向自组合的微不足道的影响.
- 改善了纳米孔中的超分子组织,在模板去除后产生捆绑和单个纳米棒.
结论:
- 宏观和纳米模板有效地指导HPH自我组织.
- 内在的分子自我组装在宏观模板中的模板曲率效应上占主导地位.
- 模板辅助合成为有潜在应用的有序纳米结构提供了多功能路线.
相关概念视频
02:05DNA as a Genetic Template
Two structural features of the DNA molecule provide a basis for the mechanisms of heredity: the four nucleotide bases and its double-stranded nature. The Watson-Crick model of double-helical DNA structure, proposed in 1952, drew heavily upon the X-ray crystallography work of researchers Rosalind Franklin and Maurice Wilkins. Watson, Crick, and Wilkins jointly received the Nobel Prize in Physiology or Medicine for their work in 1962. Franklin was, controversially, excluded from the prize for...
02:34DNA Microarrays
Microarrays are high-throughput and relatively inexpensive assays that can be automated to analyze large quantities of data at a time. They are used in genome-wide studies to compare gene or protein expression under two varied conditions, such as healthy and diseased states. Microarrays consist of glass or silica slides on which probe molecules are covalently attached through surface functionalization. Most commonly, the slides are prepared through the chemisorption of silanes to silica...
02:05DNA as a Genetic Template
Two structural features of the DNA molecule provide a basis for the mechanisms of heredity: the four nucleotide bases and its double-stranded nature. The Watson-Crick model of double-helical DNA structure, proposed in 1952, drew heavily upon the X-ray crystallography work of researchers Rosalind Franklin and Maurice Wilkins. Watson, Crick, and Wilkins jointly received the Nobel Prize in Physiology or Medicine for their work in 1962. Franklin was, controversially, excluded from the prize for...