Volume 20, Issue 43 2403844
Research Article

A Universal Strategy for Constructing Hydrogel Assemblies Enabled by PAA Hydrogel Adhesive

Qingyun Li

Qingyun Li

Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, State Key Laboratory of Materials Processing and Die & Mould Technology, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074 P. R. China

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Xinyi Quan

Xinyi Quan

Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, State Key Laboratory of Materials Processing and Die & Mould Technology, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074 P. R. China

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Rui Hu

Rui Hu

Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, State Key Laboratory of Materials Processing and Die & Mould Technology, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074 P. R. China

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Ziqing Hu

Ziqing Hu

Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, State Key Laboratory of Materials Processing and Die & Mould Technology, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074 P. R. China

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Shaoyu Xu

Shaoyu Xu

Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, State Key Laboratory of Materials Processing and Die & Mould Technology, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074 P. R. China

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Hui Liu

Hui Liu

Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, State Key Laboratory of Materials Processing and Die & Mould Technology, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074 P. R. China

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Xiaohe Zhou

Xiaohe Zhou

Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, State Key Laboratory of Materials Processing and Die & Mould Technology, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074 P. R. China

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Bin Han

Corresponding Author

Bin Han

State Key Laboratory of Intelligent ManufacturingEquipment and Technology, School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074 P. R. China

E-mail: [email protected]; [email protected]

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Xiaofan Ji

Corresponding Author

Xiaofan Ji

Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, Hubei Engineering Research Center for Biomaterials and Medical Protective Materials, State Key Laboratory of Materials Processing and Die & Mould Technology, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074 P. R. China

E-mail: [email protected]; [email protected]

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First published: 22 June 2024
Citations: 8

Abstract

Hydrogel is a significant type of building block for constructing macroscopic assemblies, the construction of which usually entails the incorporation of supramolecular groups. However, supramolecular group recognition is specific and only suitable for assembling two particular modified hydrogels, but not a versatile strategy. Herein, a universal strategy without modification process is proposed using polyacrylic acid (PAA) hydrogel as the adhesive layer to assemble different kinds of hydrogels. Furthermore, hydrogel assemblies with various shapes and multi-stimuli responsiveness are constructed by assembling different stimuli-responsive hydrogels with PAA hydrogel. Therefore, hydrogel assemblies are able to complete bending motions upon applying corresponding stimuli. This strategy provides a universal approach for constructing hydrogel assemblies, and also shows the potential for developing soft robots with versatile functions.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available in the supplementary material of this article.

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