在氧反应过渡性超分子水凝中的动力控制寿命
Jonathan P Wojciechowski1, Adam D Martin1, Pall Thordarson1
1School of Chemistry, the Australian Centre for Nanomedicine and The ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, the University of New South Wales , Sydney, NSW 2052, Australia.
Journal of the American Chemical Society
|February 7, 2018
概括
研究人员使用动力控制开发了短暂的超分子. 基于N,N'-dibenzoyl-l-cystine (DBC) 的水凝寿命可以通过pH或减少剂度进行调整.
科学领域:
- 软物质物理
- 超分子化学
- 材料科学
背景情况:
- 在软材料中编程动态,时间依赖性质仍然是一个重大挑战.
- 超分子水凝具有可调的材料特性,但往往缺乏精确的时间控制.
研究的目的:
- 为设计具有可调节寿命的短暂超分子水凝制定策略.
- 研究这些水凝形成和分解的动力机制.
- 证明过渡性水凝系统的循环性和可预测性.
主要方法:
- 使用pH触发自组的氧化还原活性超分子凝剂N,N-二-l-cystine (DBC).
- 使用一个减少剂来控制水凝系统的拆卸动力学.
- 进行动力分析以了解凝形成和拆卸速度之间的相互作用.
- 证明过渡性水凝的多重清洁循环.
主要成果:
- 成功设计了可调节寿命的过渡性超分子体.
- 通过调整pH值或降低剂量度,有效调节水凝的寿命.
- 动力分析显示凝形成阻碍了还原剂,延长了水凝的稳定性.
- 观察到没有动力捕获聚合物的清洁,可逆循环.
结论:
- 建立了一种可预测时间控制的过渡软材料的方法.
- 动力控制策略可以设计动态的超分子组件.
- 这项工作促进了对响应性水凝系统的理解和应用.
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