4.3 Review

A review on 3D printing in tissue engineering applications

期刊

JOURNAL OF POLYMER ENGINEERING
卷 42, 期 3, 页码 243-265

出版社

WALTER DE GRUYTER GMBH
DOI: 10.1515/polyeng-2021-0059

关键词

3D printed constructs; 3D printed scaffolds; biocompatible materials; printing methods; tissue engineering

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This review focuses on the cytocompatibility characteristics of 3D printed constructs in tissue engineering, highlighting the significant impact of inkjet and extrusion-based 3D printing techniques on cell adherence, proliferation, and differentiation. The utilization of growth factors in 3D printed constructs enhances cell growth and bone formation. The combination of different 3D printing techniques for future tissue engineering applications is of great interest.
In tissue engineering, 3D printing is an important tool that uses biocompatible materials, cells, and supporting components to fabricate complex 3D printed constructs. This review focuses on the cytocompatibility characteristics of 3D printed constructs, made from different synthetic and natural materials. From the overview of this article, inkjet and extrusion-based 3D printing are widely used methods for fabricating 3D printed scaffolds for tissue engineering. This review highlights that scaffold prepared by both inkjet and extrusion-based 3D printing techniques showed significant impact on cell adherence, proliferation, and differentiation as evidenced by in vitro and in vivo studies. 3D printed constructs with growth factors (FGF-2, TGF-beta 1, or FGF-2/TGF-beta 1) enhance extracellular matrix (ECM), collagen I content, and high glycosaminoglycan (GAG) content for cell growth and bone formation. Similarly, the utilization of 3D printing in other tissue engineering applications cannot be belittled. In conclusion, it would be interesting to combine different 3D printing techniques to fabricate future 3D printed constructs for several tissue engineering applications.

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