Insulated conjugated bimetallopolymer with sigmoidal response by dual self-controlling system as a biomimetic material.,Nature Communications

当前位置： X-MOL 学术 › Nat. Commun. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Insulated conjugated bimetallopolymer with sigmoidal response by dual self-controlling system as a biomimetic material.
Nature Communications ( IF 14.7 ) Pub Date : 2020-01-21 , DOI: 10.1038/s41467-019-14271-2
Hiroshi Masai ₁ , Takuya Yokoyama ₂ , Hiromichi V Miyagishi ₁ , Maning Liu ₃ , Yasuhiro Tachibana ₃ , Tetsuaki Fujihara ₂ , Yasushi Tsuji ₂ , Jun Terao ₁

Affiliation

Biological systems are known to spontaneously adjust the functioning of neurotransmitters, ion channels, and the immune system, being promoted or regulated through allosteric effects or inhibitors, affording non-linear responses to external stimuli. Here we report that an insulated conjugated bimetallopolymer, in which Ru(II) and Pt(II) complexes are mutually connected with insulated conjugations, exhibits phosphorescence in response to CO gas. The net profile corresponds to a sigmoidal response with a dual self-controlling system, where drastic changes were exhibited at two threshold concentrations. The first threshold for activation of the system is triggered by the depolymerization of the non-radiative conjugated polymer to luminescent monomers, while the second one for regulation is triggered by the switch in the rate-determining step of the Ru complex. Such a molecular design with cooperative multiple transition metals would provide routes for the development of higher-ordered artificial molecular systems bearing bioinspired responses with autonomous modulation.

中文翻译：

作为仿生材料，双自控系统具有 S 型响应的绝缘共轭双金属聚合物。

众所周知，生物系统可以自发地调节神经递质、离子通道和免疫系统的功能，通过变构效应或抑制剂来促进或调节，从而对外部刺激提供非线性反应。在这里，我们报道了一种绝缘共轭双金属聚合物，其中 Ru(II) 和 Pt(II) 配合物以绝缘共轭相互连接，响应 CO 气体而表现出磷光。净轮廓对应于双自控制系统的 S 形响应，其中在两个阈值浓度下表现出剧烈的变化。系统激活的第一个阈值是由非辐射共轭聚合物解聚为发光单体触发的，而第二个调节阈值是由Ru配合物的速率决定步骤中的开关触发的。这种具有协作的多种过渡金属的分子设计将为开发具有自主调节的仿生反应的高阶人工分子系统提供途径。

更新日期：2020-01-22

点击分享查看原文

点击收藏

公开下载

阅读更多本刊最新论文本刊介绍/投稿指南11