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Actuating Supramolecular Shape Memorized Hydrogel Toward Programmable Shape Deformation.

Huanhuan Lu^1,2, Baoyi Wu^1,2, Xuxu Yang³

¹Key Laboratory of Marine Materials and Related Technologies, Zhejiang Key Laboratory of Marine Materials and Protective Technologies, Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, P. R. China.

Small (Weinheim an Der Bergstrasse, Germany)

|November 10, 2020

Summary

This summary is machine-generated.

This study introduces a novel bilayer hydrogel actuator capable of programmable 4D shape deformation. This biomimetic material offers diverse, reversible shape transformations for advanced intelligent polymer applications.

Keywords:

actuating bilayer hydrogel programmable shape deformation shape memory

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Area of Science:

Polymer Science and Engineering
Materials Science
Bionics and Biomimetics

Background:

Biomimetic hydrogel actuators are crucial in bionics research.
Current hydrogel actuators have limited shape transformation capabilities due to early-stage anisotropic structure generation.

Purpose of the Study:

To develop a novel bilayer hydrogel actuator with programmable 4D shape deformation.
To overcome the limitations of fixed shape transformations in existing hydrogel actuators.

Main Methods:

Fabrication of a bilayer hydrogel comprising a thermoresponsive actuating layer and a metal ion-responsive memorizing layer.
Utilizing supramolecular metal-ligand coordination to fix 2D hydrogel films into various 3D shapes.
Employing temperature stimuli for programmable 4D shape deformation and manipulating temporary shapes via shape memory behavior.

Main Results:

The proposed bilayer hydrogel enables the fixation of 2D films into diverse 3D shapes.
Programmable 4D shape deformation is achieved through temperature stimuli.
Diverse reversible shape deformation performances are realized by manipulating temporary anisotropic structures.

Conclusions:

The novel bilayer hydrogel actuator demonstrates significant advancements in biomimetic shape deformation.
This technology is expected to promote the development of intelligent polymeric materials with versatile shape-shifting capabilities.