Development of 3D Bone Scaffold Using Hyroxyapatite or Alumina Powders and Rapid Prototyping

Authors

Natalia Pawlak, Technological University DublinFollow
Maura Kelleher, Technological University DublinFollow
Stuart Hampshire, University of LimerickFollow

Document Type

Conference Paper

Rights

Available under a Creative Commons Attribution Non-Commercial Share Alike 4.0 International Licence

Disciplines

Polymer science, Materials engineering, Ceramics, Biomaterials, Biomaterials

Publication Details

Paper presented at Bioengineering in Ireland 18 Conference, [Belfast, 27-28th January 2012] and published in conference proceedings.

Abstract

Bioceramic scaffolds with fully controlled macroporosity are highly desired materials for bone substitutes. In order to incorporate interconnecting pore channels into bioceramics, novel rapid prototyping techniques such as fused deposition modelling (FDM) or high definition stereolithography (SLA) were used. Polymer rapid prototyping moulds, with a strut size varying between 300 μm and 1 mm, were produced for ceramics casting. The moulds were filled with low viscosity aqueous hydroxyapatite or alumina slips. After burning out of the polymer and sintering of the bioceramics 3D bioceramic scaffolds were obtained. The final samples were characterized for their microstructure, density, porosity and mechanical properties.

Recommended Citation

Pawlak N., Kelleher M., Hampshire S.:Development of 3D Bone Scaffold Using Hyroxyapatite or Alumina Powders and Rapid Prototyping . Bioengineering in Ireland 18, Conference Proceedings, Belfast ,Jan., 2012).