Recent progress in the shape deformation of polymeric hydrogels from memory to actuation

Area of Science:

• Polymer Science
• Materials Science
• Biomaterials

Background:

• Shape deformation hydrogels are stimuli-responsive polymers capable of large, reversible shape changes.
• Their soft, wet properties make them suitable for biomimetic material exploration.
• These hydrogels have diverse potential applications across various scientific fields.

Purpose of the Study:

• To provide an overview of shape deformation hydrogel mechanisms and preparation.
• To introduce innovative strategies for fabricating programmable deformation hydrogels.
• To discuss current and potential applications of these advanced materials.

Main Methods:

• Review of existing literature on shape deformation hydrogels.
• Analysis of fabrication strategies for programmable deformation.
• Exploration of application case studies in different domains.

Main Results:

• Detailed explanation of the mechanisms driving shape deformation in hydrogels.
• Presentation of various methods for hydrogel preparation and programming.
• Demonstration of successful applications in information encryption, soft robotics, and bionomic systems.

Conclusions:

• Shape deformation hydrogels are versatile materials with significant potential.
• Challenges remain in achieving multiple stable states and integrating sensing capabilities.
• Further research is needed to fully realize their capabilities in advanced applications.