Bioinspired Supramolecular Nanotoroids with Aggregation-Induced Emission Characteristics

Supramolecular toroids have attracted continuous attention because of their fascinating topological structure and important role in biological systems. However, it still remains a great challenge to construct supramolecular functional toroids and clarify the formation mechanism. Herein, we develop a...

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Bibliographic Details
Published in:ACS nano 2022-08, Vol.16 (8), p.12720-12726
Main Authors: Fu, Shuang, Pang, Aimin, Guo, Xiang, He, Youling, Song, Shanliang, Ge, Jinyin, Li, Jiangao, Li, Wei, Xiong, Yu, Wang, Lei, Wang, Dong, Tang, Ben Zhong
Format: Article
Language:English
Subjects:
Amino Acids
Circular Dichroism
Nanofibers - chemistry
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Summary:Supramolecular toroids have attracted continuous attention because of their fascinating topological structure and important role in biological systems. However, it still remains a great challenge to construct supramolecular functional toroids and clarify the formation mechanism. Herein, we develop a strategy to prepare supramolecular helical fluorescent nanotoroids by cooperative self-assembly of an amino acid and a dendritic amphiphile (AIE-den-1) with aggregation-induced emission characteristics. Mechanistic investigation on the basis of fluorescence and circular dichroism analyses suggests that the toroid formation can be driven by the interactions of AIE-den-1 with amino acid and goes through a topological morphology transformation from nanofibers to left-handed nanotoroids by means of a twist-fused-loop process.
ISSN:1936-0851
1936-086X
DOI:10.1021/acsnano.2c04480