Volume 136, Issue 14 e202315668
Zuschrift

Foldaxane-Based Switchable [c2]Daisy Chains

Sibei Liao

Sibei Liao

Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medical, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Luoyu Road No. 1037, 430074 Wuhan, China

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Jie Tang

Jie Tang

Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medical, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Luoyu Road No. 1037, 430074 Wuhan, China

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Chunmiao Ma

Chunmiao Ma

Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medical, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Luoyu Road No. 1037, 430074 Wuhan, China

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Lu Yu

Lu Yu

Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medical, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Luoyu Road No. 1037, 430074 Wuhan, China

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Prof. Ying Tan

Prof. Ying Tan

State Key Laboratory of Chemical Oncogenomics, Key Laboratory of Chemical Biology, Tsinghua Shenzhen International Graduate School, Tsinghua University, 518055 Shenzhen, China

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Xuanzhu Li

Xuanzhu Li

Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medical, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Luoyu Road No. 1037, 430074 Wuhan, China

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Prof. Quan Gan

Corresponding Author

Prof. Quan Gan

Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medical, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Luoyu Road No. 1037, 430074 Wuhan, China

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First published: 12 February 2024

Abstract

Artificial molecular muscles are highly attractive in the field of molecular machinery due to their unique properties of contraction and stretching motion. However, the synthesis of molecular muscles poses formidable challenges as it is hindered by undesirable yields and poor selectivity. Herein, we present a procedure for the dynamic assembly of foldaxane-based [c2]daisy chains, wherein the hermaphroditic sequences consisting of aromatic helices and peptide rods are interlocked through inter-strand hydrogen-bonding interactions. The binding complementarity facilitates a selective and efficient assembly of [c2]daisy chain structures, inhibiting the creation of by-products. Introducing multiple recognition sites confers the system with contraction and stretching motion actuated by chemical stimuli. The rate of this muscle-like motion is calculated to be 0.8 s−1, which is 107 times faster than that of complex dissociation.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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