Tailoring Crosslinks through Time─A Paradigm for Tough Hydrogels.

Area of Science:

• Materials Science
• Polymer Chemistry
• Biomaterials Engineering

Background:

• Hydrogel applications are expanding, driving research into structure-property relationships for strength and toughness.
• Current design strategies primarily focus on spatial structure-function relationships.
• A holistic approach requires integrating temporal dynamics, fabrication, and advanced functions like adaptation.

Purpose of the Study:

• To review the dynamics of temporal-function relationships in hydrogels.
• To highlight how dynamic polymer interactions influence material properties and behavior.
• To connect bioinspired materials processing with the design of tough, adaptable hydrogels.

Main Methods:

• Literature review focusing on temporal-function relationships in hydrogels.
• Analysis of how dynamic polymer interactions govern hydrogel assembly and structure.
• Examination of the link between polymer dynamics and deformation/fracture behavior.
• Exploration of dynamic property modulation, remodeling, and self-healing mechanisms.

Main Results:

• Dynamic regulation of polymer interactions is key to programming hydrogel structure and assembly.
• Temporal dynamics influence hydrogel response to deformation and fracture.
• Hydrogel properties can be dynamically modulated, enabling structural remodeling and self-healing.
• Understanding these temporal aspects is crucial for bioinspired hydrogel design.

Conclusions:

• Integrating temporal-function relationships offers a complementary perspective to spatial approaches for hydrogel design.
• Dynamic polymer interactions are fundamental to hydrogel formation, function, and remodeling.
• This review provides a framework for future hydrogel development, emphasizing bioinspired processing and advanced functionalities.