Prospects of injectable hydrogels for bone tissue engineering applications.

Area of Science:

• Biomaterials Science
• Tissue Engineering
• Regenerative Medicine

Background:

• Bone defects from trauma, fractures, and diseases present a significant clinical challenge.
• Biomaterial scaffolds are crucial for tissue engineering (TE) approaches to bone repair.
• Injectable hydrogels are emerging as advanced biomaterial scaffolds for bone tissue engineering (BTE).

Purpose of the Study:

• To review the preparation, types, properties, and applications of injectable hydrogels.
• To emphasize the specific role and potential of injectable hydrogels in bone tissue engineering (BTE).
• To discuss the synergistic effects of hydrogels with other biomaterials and cell-encapsulated hydrogels for BTE.

Main Methods:

• Literature review focusing on injectable hydrogels in bone tissue engineering.
• Analysis of hydrogel properties relevant to bone regeneration.
• Discussion of synergistic strategies and cell integration for enhanced BTE.

Main Results:

• Injectable hydrogels possess favorable properties for BTE, including high water content, biomimicry, tunable mechanics, and minimal invasiveness.
• Hydrogels can effectively conform to irregular bone defects.
• Synergistic combinations and cell encapsulation enhance hydrogel performance in BTE.

Conclusions:

• Injectable hydrogels represent a highly promising biomaterial for bone tissue engineering.
• Their versatility and adaptability make them suitable for addressing critical bone defects.
• Further research and implementation of injectable hydrogels are crucial for advancing BTE clinical applications.