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Article
3D Bioprinting of Stem Cells and Polymer/Bioactive Glass Composite Scaffolds for Bone Tissue Engineering
International Journal of Bioprinting
  • Caroline Murphy
  • Krishna Kolan
  • Wenbin Li
  • Julie A. Semon, Missouri University of Science and Technology
  • D. E. Day, Missouri University of Science and Technology
  • Ming-Chuan Leu, Missouri University of Science and Technology
Abstract

A major limitation of using synthetic scaffolds in tissue engineering applications is insufficient angiogenesis in scaffold interior. Bioactive borate glasses have been shown to promote angiogenesis. There is a need to investigate the biofabrication of polymer composites by incorporating borate glass to increase the angiogenic capacity of the fabri-cated scaffolds. In this study, we investigated the bioprinting of human adipose stem cells (ASCs) with a polycaprolac-tone (PCL)/bioactive borate glass composite. Borate glass at the concentration of 10 to 50 weight %, was added to a mixture of PCL and organic solvent to make an extrudable paste. ASCs suspended in Matrigel were ejected as droplets using a second syringe. Scaffolds measuring 10 x 10 x 1 mm3 in overall dimensions with pore sizes ranging from 100 - 300 µm were fabricated. Degradation of the scaffolds in cell culture medium showed a controlled release of bioactive glass for up to two weeks. The viability of ASCs printed on the scaffold was investigated during the same time period. This 3D bioprinting method shows a high potential to create a bioactive, highly angiogenic three-dimensional environ-ment required for complex and dynamic interactions that govern the cell's behavior in vivo .

Department(s)
Biological Sciences
Second Department
Materials Science and Engineering
Third Department
Mechanical and Aerospace Engineering
Research Center/Lab(s)
Intelligent Systems Center
Keywords and Phrases
  • Bioactive glass,
  • Biofabrication,
  • Bioprinting,
  • Human adipose-derived stem cell,
  • MSCs,
  • Polycaprolactone,
  • Scaffold,
  • Tissue engineering
Document Type
Article - Journal
Document Version
Final Version
File Type
text
Language(s)
English
Rights
© 2017 Caroline Murphy, Krishna Kolan, Wenbin Li, Julie Semon, Delbert Day, Ming Leu, All rights reserved.
Creative Commons Licensing
Creative Commons Attribution-Noncommercial 4.0
Publication Date
1-1-2017
Publication Date
01 Jan 2017
Citation Information
Caroline Murphy, Krishna Kolan, Wenbin Li, Julie A. Semon, et al.. "3D Bioprinting of Stem Cells and Polymer/Bioactive Glass Composite Scaffolds for Bone Tissue Engineering" International Journal of Bioprinting Vol. 3 Iss. 1 (2017) p. 53 - 63 ISSN: 2424-8002
Available at: http://works.bepress.com/d-day/1/