Natural hydrogels for cartilage regeneration: Modification, preparation and application

Area of Science:

• Biomaterials Science
• Tissue Engineering
• Regenerative Medicine

Background:

• Hydrogels, hydrophilic polymer networks, are versatile materials used as films, scaffolds, nanoparticles, and drug carriers in biomedical fields.
• Their biocompatibility, biodegradability, and tunable properties make them ideal for mimicking human tissues.
• Cartilage regeneration faces challenges due to limited chondrocyte migration and vascularization, making tissue engineering approaches crucial.

Purpose of the Study:

• To review natural hydrogels for cartilage tissue engineering.
• To discuss their synthesis, modification, and application methods.
• To outline current achievements, limitations, and future directions in natural hydrogel-based cartilage regeneration.

Main Methods:

• Literature review focusing on natural hydrogels in cartilage tissue engineering.
• Analysis of synthesis, modification, and application strategies.
• Discussion of recent discoveries, challenges, and future prospects.

Main Results:

• Natural hydrogels exhibit excellent biocompatibility and biodegradability, with controllable degradation rates and non-toxic byproducts.
• They serve as effective scaffolds and drug delivery systems for cartilage tissue engineering.
• Recent advancements show significant potential for cartilage regeneration using these materials.

Conclusions:

• Natural hydrogels are a viable and promising material class for advancing cartilage tissue engineering.
• Further research into overcoming current limitations will enhance their translational potential for clinical applications.
• Future directions include optimizing hydrogel properties and exploring novel application strategies for enhanced cartilage repair.