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Biomimicry in 3D printing design: implications for peripheral nerve regeneration
Zhiwen Yan1,2,3, Yun Qian1,2,3, Cunyi Fan1,2,3
1Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai, 200233, China.
Regenerative Medicine
|June 30, 2021
Summary
Biomimetic 3D-printed nerve guide conduits offer a promising alternative to nerve grafts for repairing long-range peripheral nerve defects. This study reviews challenges and proposes design strategies for enhanced nerve regeneration.
Area of Science:
- Biomaterials Science
- Tissue Engineering
- Regenerative Medicine
Background:
- Nerve guide conduits (NGCs) are effective for short peripheral nerve gaps.
- Autografts are superior for long-range defects but have limitations.
- Biomimetic design is crucial for high-performance NGCs.
Purpose of the Study:
- To review challenges in peripheral nerve regeneration.
- To propose biomimetic 3D-printed NGCs as an alternative therapy.
- To discuss strategies for improving NGC therapeutic effects.
Main Methods:
- Review of current literature on peripheral nerve regeneration.
- Assessment of biomimetic design principles for NGCs (microarchitecture, mechanical properties, electrical conductivity, biologics).
- Discussion of 3D printing applications in NGC fabrication.
Main Results:
- Biomimetic design considerations are essential for NGC performance.
- 3D printing offers a versatile platform for fabricating advanced NGCs.
- Strategies for incorporating electrical and biological cues can enhance nerve repair.
Conclusions:
- Biomimetic 3D-printed NGCs present a viable alternative to autografts for long-range nerve defects.
- Optimizing microarchitecture, mechanical properties, and incorporating biologics are key to NGC success.
- Further research into 3D printing techniques can advance NGC development for improved nerve regeneration.
