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Smart functionalized cartilage repair microspheres: Concepts and applications.
Fan Bai1,2, Tao Yuan1,2, Zhen Geng3
1Department of Spine Surgery, The Second Xiangya Hospital of Central South University, Changsha, 410011, China.
Materials Today. Bio
|July 12, 2026
Summary
Functionalized microspheres offer a promising solution for cartilage regeneration, overcoming limitations of current treatments. These smart microtissues precisely deliver therapeutics to enhance tissue repair and enable personalized regenerative medicine strategies.
Area of Science:
- Biomaterials Science
- Regenerative Medicine
- Tissue Engineering
Background:
- Articular cartilage possesses limited self-repair capacity, leading to degenerative disorders.
- Current treatments for cartilage injuries provide partial benefits and face challenges like poor tissue quality and invasiveness.
- Functionalized microspheres are emerging as advanced tools for cartilage repair due to their unique properties.
Purpose of the Study:
- To review the structure and degeneration of articular cartilage and cartilaginous endplate.
- To introduce microsphere fabrication techniques, biomaterial options, and functionalization strategies.
- To discuss structural innovations and the translational potential of microspheres for personalized cartilage regeneration.
Main Methods:
- Literature review focusing on cartilage structure, degeneration, and microsphere technology.
- Analysis of microsphere fabrication methods, biomaterials, and functionalization approaches.
- Examination of structural innovations and therapeutic delivery mechanisms.
Main Results:
- Microspheres offer biocompatibility, injectability, and controlled therapeutic delivery for cartilage repair.
- Functionalization transforms microspheres into smart platforms that modulate the regenerative microenvironment.
- Structural innovations enhance therapeutic outcomes and translational potential.
Conclusions:
- Functionalized microspheres represent precise, multifunctional smart microtissues for personalized cartilage regeneration.
- These advanced materials hold significant promise for overcoming current therapeutic limitations in cartilage repair.
- Further development and clinical translation are anticipated for microsphere-based regenerative strategies.
