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题名: Role of Achiral Nucleobases in Multicomponent Chiral Self-Assembly: Purine-Triggered Helix and Chirality Transfer
作者: Deng, Ming1, 2; Zhang, Li1; Jiang, Yuqian3; Liu, Minghua1, 2, 3, 4
关键词: chirality transfer ; circular polarized fluorescence ; helical structures ; nucleobases ; purines
刊名: ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
发表日期: 2016-11-21
卷: 55, 期:48, 页:15062-15066
收录类别: SCI
英文摘要: Chiral self-assembly is a basic process in biological systems, where many chiral biomolecules such as amino acids and sugars play important roles. Achiral nucleobases usually covalently bond to saccharides and play a significant role in the formation of the double helix structure. However, it remains unclear how the achiral nucleobases can function in chiral self-assembly without the sugar modification. Herein, we have clarified that purine nucleobases could trigger N-(9-fluorenyl-methox-ycarbonyl) (Fmoc)-protected glutamic acid to self-assemble into helical nanostructures. Moreover, the helical nanostructure could serve as a matrix and transfer the chirality to an achiral fluorescence probe, thioflavin T (ThT). Upon chirality transfer, the ThT showed not only supramolecular chirality but also circular polarized fluorescence (CPL). Without the nucleobase, the self-assembly processes cannot happen, thus providing an example where achiral molecules played an essential role in the expression and transfer of the chirality.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35730
Appears in Collections:胶体、界面与化学热力学实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, CAS Key Lab Colloid Interface & Chem Thermodynam, Inst Chem, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Natl Ctr Nanosci & Technol, CAS Ctr Excellence Nanosci, Lab Nanosyst & Hierarchy Fabricat, Beijing 100190, Peoples R China
4.Collaborat Innovat Ctr Chem Sci & Engn, Tianjin 300072, Peoples R China
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