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Related Experiment Video

Updated: Aug 19, 2025

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

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Stereoscopic projection lithography based 3D printing with high precision for advanced tissue engineering

Jianli Ma1, Shuo Zhao2, Yongcheng Li1

  • 1Shenzhen Sunshine Laser and Electronics Technology Co. Ltd, Shenzhen, China.

Frontiers in Bioengineering and Biotechnology
|December 5, 2022
PubMed
Summary

This study demonstrates that stereoscopic projection lithography can create advanced gelatin methacrylate (GelMA) scaffolds. These bioactive scaffolds effectively support stem cell growth and proliferation for tissue engineering applications.

Keywords:
3D printingGelMAadipose tissue-derived stromal cells (ADSC)micro structure scaffoldstereoscopic projection lithography

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Area of Science:

  • Biomaterials Science
  • Tissue Engineering
  • Regenerative Medicine

Background:

  • Tissue engineering offers solutions for early organ and tissue damage using biomimetic scaffolds and stem cells.
  • Stereoscopic projection lithography is a high-precision technique for fabricating complex, hierarchical structures.
  • Gelatin methacrylate (GelMA) is a promising biomaterial due to its biocompatibility and biodegradability.

Purpose of the Study:

  • To synthesize and fabricate bioactive scaffolds using GelMA via stereoscopic projection lithography.
  • To evaluate the suitability of these scaffolds for supporting stem cell growth and proliferation.
  • To assess the potential of GelMA scaffolds in advanced tissue engineering.

Main Methods:

  • Synthesis of gelatin methacrylate (GelMA).
  • Fabrication of multilayered micro-structured scaffolds using stereoscopic projection lithography (YC-M3D-10 3D printer).
  • Culturing and assessing stem cell growth and proliferation on the fabricated GelMA scaffolds.

Main Results:

  • The stereoscopic projection lithography successfully fabricated GelMA scaffolds with multilayered microstructures.
  • The GelMA scaffolds supported stem cell attachment and growth.
  • Significant stem cell proliferation was observed on the scaffolds after 6 days.

Conclusions:

  • GelMA scaffolds fabricated using stereoscopic projection lithography exhibit excellent biocompatibility and biodegradability.
  • These scaffolds effectively promote stem cell proliferation, indicating great potential for future tissue engineering applications.
  • The developed fabrication method offers a viable approach for creating advanced biomimetic scaffolds.