Fiber composite hydrogels and their applications in tissue regeneration

Area of Science:

• Biomaterials Science
• Tissue Engineering
• Regenerative Medicine

Background:

• Fiber composite hydrogels merge fiber structural mimicry and mechanical strength with hydrogel hydration.
• They offer synergistic performance improvements over pure hydrogels and fiber scaffolds for tissue regeneration.
• Conventional materials often have limitations in mimicking the natural extracellular matrix (ECM) and precise delivery of active ingredients.

Purpose of the Study:

• To systematically review preparation methods, structure-function advantages, and tissue repair applications of fiber composite hydrogels.
• To compare diverse fabrication techniques and highlight the benefits of fiber integration.
• To provide future perspectives on performance enhancement and intelligent design for these biomaterials.

Main Methods:

• Review of existing literature on fiber composite hydrogel fabrication and applications.
• Systematic summarization of preparation strategies including blending, lamination, 3D printing, and in situ phase separation.
• Analysis of structure-performance correlations in various tissue regeneration contexts.

Main Results:

• Fiber composite hydrogels demonstrate enhanced structural biomimicry, mechanical properties, and active ingredient delivery compared to pure hydrogels.
• These composites show superior performance in nerve, bone, vascular, and skin tissue regeneration by providing mechanical strength and topological cues.
• Integration of fibers offers ECM mimicry, mechanical reinforcement, and controlled release of therapeutic agents.

Conclusions:

• Fiber composite hydrogels are highly promising biomaterials for tissue regeneration, overcoming limitations of traditional materials.
• Their unique combination of properties makes them suitable for diverse regenerative applications.
• Further research into performance enhancement, process optimization, and intelligent design will advance their clinical translation.