Biomimetic Strategies for Bone Regeneration: Smart Scaffolds and Multiscale Cues

Area of Science:

• Biomaterials Science
• Tissue Engineering
• Regenerative Medicine

Background:

• Bone regeneration is challenging, especially for large defects, due to the complex bone microenvironment and limited natural healing.
• Biomimetic strategies using 3D scaffolds that mimic natural tissue cues offer a promising approach to overcome these limitations.

Purpose of the Study:

• To review the current landscape of biomimetic scaffold design for bone regeneration.
• To discuss fabrication techniques, material strategies, biological mechanisms, and translational considerations for next-generation bone repair.

Main Methods:

• Review of recent advances in additive manufacturing, nanotechnology, and tissue engineering for scaffold fabrication.
• Discussion of smart scaffold systems incorporating biochemical and mechanical signals.
• Exploration of multiscale design approaches and bio-inspired materials.

Main Results:

• Hierarchical scaffolds mimicking native bone structure can be fabricated using advanced technologies.
• Smart scaffolds enhance vascularization, tissue integration, and osteogenic activity.
• Bio-inspired materials and multiscale designs promote cell communication and immune regulation.

Conclusions:

• Biomimetic scaffolds, particularly intelligent and adaptive systems, are crucial for personalized bone repair.
• Future research should focus on sustainable, clinically translatable biomimetic systems integrated with digital health tools.