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Abstract A novel method for the fabrication of hybrid polymer/ceramic porous scaffolds with core/shell struts is developed. Robocasting with coaxial needles is used to deposit beta-tricalcium phosphate scaffolds with hollow… Click to show full abstract
Abstract A novel method for the fabrication of hybrid polymer/ceramic porous scaffolds with core/shell struts is developed. Robocasting with coaxial needles is used to deposit beta-tricalcium phosphate scaffolds with hollow rods, which are subsequently filled with a polycaprolactone melt by suction. The polymeric core provides outstanding improvement of the toughness of the structure in bending, with strain energy density increasing nearly two orders of magnitude and continuous polymeric fibres holding the structure together even after large deflections. Moreover, flexural strength is not significantly reduced compared to dense-strut structures; and the macroporosity of the scaffold and osteoconductivity of bioceramic surfaces are preserved.
Journal Title: Ceramics International
Year Published: 2019
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