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Designed tissue engineering scaffolds prepared by stereolithography

Melchels, F.P.W., Villagomez, M., Lacroix, D., Planell, J.A., Grijpma, D.W., & Feijen, J. (2007) Designed tissue engineering scaffolds prepared by stereolithography. In 21st European Society on Biomaterials Conference (ESB 2007), 9-12 September 2007, The Dome, Brighton.

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    Abstract

    For the fabrication of tissue engineering scaffolds, the intended tissue formation process imposes requirements on the architecture. The chosen porosity often is a tradeoff between volume and surface area accessible to cells, and mechanical properties of the construct. Interconnectivity of the pores is essential for cell migration through the scaffold and for mass transport. Conventional techniques such as salt leaching often result in heterogeneous structures and do not allow for a precise control of the architecture. Stereolithography is a rapid prototyping method that can be utilised to make 3D constructs with high spatial control by radical photopolymerisation. In this study, a regular structure based on cyclic repetition of cell units were designed through CAD modelling.. One of these structures was built on a stereolithography apparatus (SLA). Furthermore, a polylactide-based resin was developed that can be applied in stereolithography. Polylactide has proven before to be a well-performing polymer in bone tissue engineering. The final objective in this study is to build newly designed PDLLA scaffolds with a precise SLA fabrication technique to study the effect of scaffold architecture on mechanical and biological properties.

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    ID Code: 38978
    Item Type: Conference Paper
    Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > BIOMEDICAL ENGINEERING (090300) > Biomaterials (090301)
    Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
    Current > Institutes > Institute of Health and Biomedical Innovation
    Past > Schools > School of Engineering Systems
    Copyright Owner: Copyright 2007 Please consult the authors.
    Deposited On: 02 Dec 2010 13:20
    Last Modified: 11 Aug 2011 04:05

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