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Related Experiment Video

Updated: Apr 27, 2026

Human Cartilage Tissue Fabrication Using Three-dimensional Inkjet Printing Technology
09:32

Human Cartilage Tissue Fabrication Using Three-dimensional Inkjet Printing Technology

Published on: June 10, 2014

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Human cartilage tissue fabrication using three-dimensional inkjet printing technology.

Xiaofeng Cui1, Guifang Gao2, Tomo Yonezawa3

  • 1Department of Biomedical Engineering, Rensselaer Polytechnic Institute; Stemorgan Inc.; Institute of Advanced Study, Technical University of Munich; xfc.cui@gmail.com.

Journal of Visualized Experiments : Jove
|June 26, 2014
PubMed
Summary

This study presents a novel 3D bioprinting platform for cartilage tissue engineering. The method precisely deposits cells and biomaterials, achieving high cell viability and native-like mechanical properties for neocartilage.

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Area of Science:

  • Regenerative Medicine
  • Biotechnology
  • Tissue Engineering

Background:

  • Bioprinting offers precise deposition of cells, scaffolds, and growth factors for fabricating complex tissues.
  • Engineering cartilage with native zonal organization, ECM composition, and mechanical properties remains a challenge.
  • Existing tissue fabrication methods often involve lengthy UV exposure, impacting cell viability.

Purpose of the Study:

  • To develop a 3D bioprinting platform for engineering anatomically accurate cartilage.
  • To achieve native-like zonal organization, ECM composition, and mechanical properties in engineered cartilage.
  • To enhance cell viability during the fabrication process using simultaneous photopolymerization.

Main Methods:

  • Developed a bioprinting platform using a commercial inkjet printer with simultaneous photopolymerization.
  • Human chondrocytes suspended in poly(ethylene glycol) diacrylate (PEGDA) were printed layer-by-layer.
  • Simultaneous photopolymerization fixed cells in position while forming the scaffold.

Main Results:

  • The printed neocartilage exhibited mechanical properties comparable to native cartilage.
  • Simultaneous photopolymerization significantly improved cell viability compared to conventional methods with longer UV exposure.
  • Printed neocartilage showed excellent glycosaminoglycan (GAG) and collagen type II production, confirmed by gene expression.

Conclusions:

  • The developed bioprinting platform is ideal for precise cell distribution and arrangement in 3D cartilage tissue engineering.
  • Simultaneous photopolymerization enhances cell viability, crucial for fabricating functional engineered tissues.
  • This technology enables the creation of neocartilage with native-like characteristics for regenerative medicine applications.