Macrochanneled poly (epsilon-caprolactone)/ hydroxyapatite scaffold by combination of bi-axial machining and lamination

J Mater Sci Mater Med. 2006 Sep;17(9):773-8. doi: 10.1007/s10856-006-9834-1.

Abstract

A combination of bi-axial machining and lamination was used to fabricate macrochanneled poly (epsilon-caprolactone) (PCL)/hydroxyapatite (HA) scaffolds. Thermoplastic PCL/HA sheets with a thickness of 1 mm, consisting of a 40 wt% PCL polymer and 60 wt% HA particles, were bi-axially machined. The thermoplastic PCL/HA exhibited an excellent surface finish with negligible tearing of the PCL polymer and pull-out of the HA particles. The bi-axially machined sheets were laminated with a solvent to give permanent bonding between the lamina. This novel process produced three-directionally connected macrochannels in the dense PCL/HA body. The macrochanneled PCL/HA scaffold exhibited excellent ductility and reasonably high strength. In addition, good cellular responses were observed due to the osteoconductive HA particles.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Biocompatible Materials / chemistry*
  • Bone Substitutes
  • Cell Line, Tumor
  • Cell Proliferation
  • Coated Materials, Biocompatible / chemistry*
  • Durapatite / chemistry*
  • Humans
  • Materials Testing
  • Microscopy, Electron, Scanning
  • Polyesters / chemistry*
  • Solvents / chemistry
  • Surface Properties
  • Tissue Engineering

Substances

  • Biocompatible Materials
  • Bone Substitutes
  • Coated Materials, Biocompatible
  • Polyesters
  • Solvents
  • polycaprolactone
  • Durapatite