Temporal switching of an amphiphilic self-assembly by a chemical fuel-driven conformational response.

Temporal switching of an amphiphilic self-assembly by a chemical fuel-driven conformational response.
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DOI:
10.1039/c7sc01730h
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发表时间:
2017-08-01
期刊:
影响因子:
8.4
通讯作者:
George SJ
George SJ
中科院分区:
化学1区
文献类型:
--
作者:
Jalani K;Dhiman S;Jain A;George SJ

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一种独特的氧化还原活性两亲性折叠体,其经历瞬时构象变化,这些变化在其自组装中放大成可观察到的形态变化。自组装的时空控制是超分子化学的最新科学障碍,其灵感来自于由化学信号驱动的生物系统的功能。在这项研究中,我们致力于减轻这种情况下,采用一种独特的两亲性foldamer,在化学燃料的影响下运作。折叠体中的构象变化放大成其两亲性组装中可观察到的形态变化,其由外部分子线索(燃料)控制。我们利用这种氧化还原响应性折叠体通过酶途径以时间方式影响其构象。瞬时构象/组装的时间特性可以通过改变燃料和酶的浓度来调制。我们相信,这样的设计策略可以在设计分子和超分子系统,为未来的主动,自适应和自主材料的积极后果。
A unique redox active amphiphilic foldamer that undergoes transient conformation changes that amplify into observable morphology changes in its self-assembly. The spatial and temporal control of self-assemblies is the latest scientific hurdle in supramolecular chemistry which is inspired by the functioning of biological systems fueled by chemical signals. In this study, we work towards alleviating this scenario by employing a unique amphiphilic foldamer that operates under the effect of a chemical fuel. The conformational changes in the foldamer amplify into observable morphological changes in its amphiphilic assembly that are controlled by external molecular cues (fuel). We take advantage of this redox responsive foldamer to affect its conformation in a temporal manner by an enzymatic pathway. The temporal characteristics of the transient conformation/assembly can be modulated by varying the concentrations of the fuel and enzyme. We believe that such a design strategy can have positive consequences in designing molecular and supramolecular systems for future active, adaptive and autonomous materials.
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