Two dimensional MoS2 accelerates mechanically controlled polymerization and remodeling of hydrogel

Jian Wang, Zhijun Han, Longfei Zhang, Ran Ding, Chengqiang Ding, Kai Chen and Zhao Wang ()
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Jian Wang: Soochow University
Zhijun Han: Soochow University
Longfei Zhang: Soochow University
Ran Ding: Soochow University
Chengqiang Ding: Soochow University
Kai Chen: Soochow University
Zhao Wang: Soochow University

Nature Communications, 2025, vol. 16, issue 1, 1-11

Abstract: Abstract Self-remodeling material can change their physical properties based on mechanical environment. Recently, mechanically controlled polymerization using mechanoredox catalyst enabled composite materials to undergo a permanent structural change, thereby enhancing their mechanical strength. However, a significant delay in material’s response was observed due to the sluggish activation of the bulk catalyst for polymerization. Herein, we report a fast, mechanically controlled radical polymerization of water soluble monomers using 2D MoS2 as the mechanoredox catalyst, studied under various mechanical stimuli, including ultrasound, ball milling and low frequency vibrations. Our strategy enables complete polymerization within several minutes of work. This accelerated process can be utilized to create composite hydrogels with the ability to alter their mechanical and electrical properties in response to mechanical stimuli. This strategy has potential for applications in smart materials such as hydrogel sensors, artificial muscles, and implantable biomaterials.

Date: 2025
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DOI: 10.1038/s41467-025-57068-2

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