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Related Experiment Video

Updated: May 10, 2026

Fabrication of Custom Agarose Wells for Cell Seeding and Tissue Ring Self-assembly Using 3D-Printed Molds
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Biofabrication of multi-material anatomically shaped tissue constructs.

Jetze Visser1, Benjamin Peters, Thijs J Burger

  • 1Department of Orthopaedics, Netherlands Institute of Regenerative Medicine, University Medical Center Utrecht, Utrecht, The Netherlands.

Biofabrication
|July 3, 2013
PubMed
Summary

Researchers improved biofabrication of complex tissue constructs using multiple materials in a 3D printing process. This technique enhances control over shape and composition for regenerative medicine applications.

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Area of Science:

  • Biomaterials Engineering
  • Regenerative Medicine
  • Tissue Engineering

Background:

  • Additive manufacturing faces challenges in controlling shape and composition for biofabricated tissue-equivalents.
  • Current methods require improvement to achieve clinically relevant, anatomically shaped constructs.

Purpose of the Study:

  • To enhance control over shape and composition in biofabrication by integrating multiple biocompatible materials.
  • To develop a 3D fiber deposition process for fabricating complex, anatomically shaped tissue constructs.

Main Methods:

  • Utilized a 3D fiber deposition process combining poly(vinyl alcohol), poly(ε-caprolactone), gelatin methacrylamide/gellan gum, and alginate hydrogel.
  • Co-deposited sacrificial components for temporary support of overhangs, removed post-fabrication via aqueous solutions.
  • Embedded chondrocytes to assess cell viability during fabrication and sacrificial procedures.

Main Results:

  • Successfully fabricated complex, anatomically shaped constructs using multiple material deposition.
  • Generated advanced porous thermoplastic polymer scaffolds, layered porous hydrogel constructs, and reinforced cell-laden hydrogel structures.
  • Demonstrated no adverse effects on chondrocyte viability from fabrication and sacrificial procedures.

Conclusions:

  • Anatomically shaped tissue constructs of clinically relevant sizes can be generated using multiple building and sacrificial materials in a single biofabrication session.
  • The developed techniques offer improved control over internal and external construct architecture.
  • This approach holds significant potential for generating customized implants for human tissue regeneration.