阳离子聚合
荧光团
两亲性
接受者
化学
猝灭(荧光)
光化学
DNA
位阻效应
聚集诱导发射
组合化学
荧光
立体化学
有机化学
生物化学
共聚物
聚合物
光学
物理
凝聚态物理
作者
Xiaofang Tang,Yun Zhu,Weijiang Guan,Chao Lu
出处
期刊:Aggregate
[Wiley]
日期:2023-04-26
卷期号:4 (4)
被引量:4
摘要
Abstract Arranging dense donors around a single acceptor for the assembly of efficient light‐harvesting antennas is a long‐standing challenge due to the intractable aggregation‐caused quenching of dense donors. Herein, we designed a cationic aggregation‐induced emission (AIE) amphiphile to self‐assemble with natural DNA duplexes. As an efficient donor, the as‐prepared cationic AIE amphiphile could be densely attached to the phosphate groups of natural DNA duplexes by using the smaller cationic trimethylammonium. The long alkyl chain between the cationic trimethylammonium and the AIE fluorophore allowed for avoiding the insufficient binding caused by the steric hindrance of the AIE fluorophore, resulting in a remarkably high donor/acceptor ratio comparable to that of the widely developed custom DNA assemblies. The proposed self‐assembly strategy provided novel flexible avenues for the assembling of finely controlled and efficient light‐harvesting systems into natural DNA with little synthetic modifications and low cost.
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