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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Published inACS nano Vol. 16; no. 8; pp. 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 Journal Article
LanguageEnglish
Published United States American Chemical Society 23.08.2022
Subjects
Amino Acids
Circular Dichroism
Nanofibers - chemistry
Self-assembly
Supramolecular helical nanotoroids
Amino acid
Aggregation-induced emission
Dendritic amphiphiles
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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