在螺旋自组装中实现轻量工作,以实现光反向性
Yunsong Cai1, Zhiqian Guo1, Jianmei Chen2
1Key Laboratory for Advanced Materials and Institute of Fine Chemicals, Shanghai Key Laboratory of Functional Materials Chemistry, East China University of Science and Technology , Shanghai 200237, P. R. China.
Journal of the American Chemical Society
|December 29, 2015
概括
研究人员开发了一种响应光的螺旋式自组装系统. 这种系统可逆地使用紫外线和可见光在开放和关闭状态之间切换,在超分子水平上放大分子性.
科学领域:
- 超分子化学
- 材料科学
- 奇拉性研究
背景情况:
- 性转移对于转录和复制等生物过程至关重要.
- 控制光诱导的螺旋自组装与可逆性形转换是一个重大挑战.
研究的目的:
- 展示一个可光切换的螺旋式结自组装系统.
- 在光照射时实现可逆性形转化.
- 在超分子层面扩大分子性.
主要方法:
- 使用紫外线和可见光在开放和关闭状态之间进行光切换.
- 使用扫描电子显微镜 (SEM) 和原子力显微镜 (AFM) 来描述超螺旋特性.
- 研究了形态,光和螺旋性的可逆调制.
主要成果:
- 实现了螺旋式结自组合的可逆光开关.
- 证明了分子性向超分子螺旋体的放大.
- 使用SEM和AFM进行超螺旋尺寸 (扭曲,长度,高度,斜率) 的表征.
- 观察到形态,光和螺旋性的光可逆调制.
结论:
- 开发了一种可访问的纳米结构光可逆调制路径.
- 创建了一个螺旋式可光切换的纳米结构,具有精确的组装/拆卸功能.
- 这个系统模仿生物系统如蛋白质和DNA在它的结构控制.
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