Silk Fibroin/GelMA-Based Hydrogels as a Platform for Tissue Adhesives and Tissue Engineering

Area of Science:

• Biomaterials Science
• Regenerative Medicine
• Tissue Engineering

Background:

• Silk fibroin (SF) and gelatin methacryloyl (GelMA) hydrogels are advanced biomaterials.
• They possess unique physiological and physicochemical properties suitable for biomedical use.

Purpose of the Study:

• To review the synergistic benefits of SF/GelMA hydrogels.
• To highlight their physicochemical tunability, biocompatibility, and multifunctionality.
• To explore cross-linking strategies for tissue regeneration.

Main Methods:

• Review of existing literature on SF/GelMA hydrogels.
• Analysis of SF's contribution to structural integrity (β-sheet domains).
• Examination of GelMA's photo-cross-linkable functionality for property modulation.

Main Results:

• SF/GelMA hydrogels exhibit synergistic advantages in mechanical strength and tunability.
• Various physical and chemical cross-linking methods enhance tissue adhesion and regeneration.
• Optimized hydrogels show potential for skin, muscle, cartilage, bone, tendon, and ligament repair.

Conclusions:

• SF/GelMA hydrogels are promising for regenerative medicine due to their versatile properties.
• Cross-linking strategies are crucial for tailoring hydrogels for specific tissue applications.
• Addressing translational challenges is key for clinical implementation in tissue repair and reconstruction.