Precise Control of Dissipative Self‐assembly by Light and Electricity
Precise Control of Dissipative Self‐assembly by Light and Electricity
复制标题
利用光和电精确控制耗散自组装
DOI：
10.1002/chem.202300347
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发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Guan, Zhibin
中科院分区：
文献类型：
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作者：
Chen, Chunfeng;Guan, Zhibin
自然启发的合成耗散自组装最近引起了人们的广泛关注。然而，实现对耗散超分子组装结构和自含系统功能的精确控制仍然是一个重大挑战。在这里，我们将联合收割机光和电作为两种清洁的、时空可寻址的燃料结合起来，以提供对形态的精确控制，用于在自包含的溶液中进行二萘嵌苯双酰亚胺甘氨酸（PBIg）构建块的耗散自组装。在这种设计中，电化学氧化提供正燃料以激活PBIg自组装，而光还原提供负燃料以使系统失活以进行拆卸。通过对两种抵消燃料进行编程，我们展示了在自包含系统中控制PBIg自组装成各种组装形态。此外，通过同时施加光和电的双燃料，我们可以创建一个主动的动态平衡，表现出动态不稳定性，导致形态变化的不对称组件与曲率。这种对自组装系统的精确控制可能会在编程复杂的活性材料以及配制具有所需形态的药物试剂中找到未来的应用。
Nature‐inspired synthetic dissipative self‐assemblies have attracted much attention recently. However, it remains a major challenge to achieve precise control over dissipative supramolecular assembly structures and functions of self‐contained systems. Here we combine light and electricity as two clean, and spatiotemporally addressable fuels to provide precise control over the morphology for dissipative self‐assembly of a perylene bisimide glycine (PBIg) building block in a self‐contained solution. In this design, electrochemical oxidation provides the positive fuel to activate PBIg self‐assembly while photoreduction supplies the negative fuel to deactivate the system for disassembly. Through programming the two counteracting fuels, we demonstrated the control of PBIg self‐assembly into a variety of assembly morphologies in a self‐contained system. In addition, by exerting light and electrical dual fuels simultaneously, we could create an active homeostasis exhibiting dynamic instability, leading to morphological change to asymmetric assemblies with curvatures. Such precise control over self‐assembly of self‐contained systems may find future applications in programming complex active materials as well as formulating pharmaceutical reagents with desired morphologies.