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Fabrication of a SFF-based three-dimensional scaffold using a precision deposition system in tissue engineering

Jong Young Kim1, Eui Kyun Park2, Shin-Yoon Kim3, Jung-Woog Shin4 and Dong-Woo Cho1

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Recent developments in tissue-engineering techniques allow physicians to treat a range of previously untreatable conditions. In the development of such techniques, scaffolds with a controllable pore size and porosity have been manufactured using solid free-form fabrication methods to investigate cell interaction effects such as cell proliferation and differentiation. In this study, we describe the fabrication of scaffolds from two types of biodegradable materials using a precision deposition system that we developed. The precision deposition system uses technology that enables the manufacture of three-dimensional (3D) microstructures. The fabrication of 3D tissue-engineering scaffolds using the precision deposition system required the combination of several technologies, including motion control, thermal control, pneumatic control and CAD/CAM software. Through the fabrication and cell interaction analysis of two kinds of scaffolds using polycaprolactone and poly-lactic-co-glycolic acid, feasibility of application to the tissue engineering of the developed SFF-based precision deposition system is demonstrated.


PACS

87.85.Lf Tissue engineering

87.17.Ee Growth and division

87.85.J- Biomaterials

Subjects

Biological physics

Dates

Issue 5 (May 2008)

Received 7 February 2008, in final form 6 March 2008

Published 15 April 2008



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