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Melt-Extrusion Additive Manufacturing for Tissue Engineering: Applications and Limitations.
Andrea Roberto Calore1,2, Carlos Mota1, Katrien Bernaerts2
1MERLN Institute for Technology-Inspired Regenerative Medicine, Maastricht University, Maastricht, The Netherlands.
3D Printing and Additive Manufacturing
|December 4, 2025
Summary
Additive manufacturing (AM) offers custom shapes for tissue engineering scaffolds. However, limitations in current AM methods hinder industrial scaling and scaffold quality, requiring new strategies for better control and biomimicry.
Area of Science:
- Biomedical Engineering
- Materials Science
- Regenerative Medicine
Background:
- Additive manufacturing (AM) is increasingly used across industries for custom object creation without molds.
- Melt-based AM methods are standard for hard-tissue engineering scaffolds in biomedical applications.
- Despite widespread research, AM scaffold production faces limitations hindering standardization and industrial scale-up.
Purpose of the Study:
- To review the history and success of AM in tissue engineering and regenerative medicine.
- To identify current limitations in AM scaffold fabrication processes.
- To propose strategies for enhanced manufacturing control and scaffold biomimicry.
Main Methods:
- Literature review of additive manufacturing techniques.
- Analysis of current challenges in scaffold production.
- Discussion of potential solutions for improved workflow.
Main Results:
- AM offers significant advantages in creating complex geometries for tissue engineering.
- Existing AM processes for scaffolds face challenges in standardization, quality control, and scalability.
- Current limitations impact scaffold performance and biomimetic properties.
Conclusions:
- Further research is needed to overcome AM limitations in scaffold fabrication.
- Developing strategies for increased manufacturing control is crucial.
- Improving the biomimicry of AM scaffolds will enhance their effectiveness in regenerative medicine.
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