Mechanical behavior and cell response of PCL coated α-TCP foam for cancellous-type bone replacement

Le Thi Bang, Kanji Tsuru, Melvin Munar, Kunio Ishikawa, Radzali Othman

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)


The mechanical behavior and cell responses of poly (ε-carpolactone) (PCL) coated α-tricalcium phosphate (α-TCP) foam were studied as an initial step for the fabrication of a cancellous-type artificial bone replacement. The α-TCP foam was obtained from sintering CaCO3 and CaHPO4·2H2O at 1500 °C. It was then coated with PCL and its three dimensional fully-interconnected porous structure was found to be maintained. The coated α-TCP samples exhibited high porosity (80-85%) with large pore size (500-700 μm) that mimic the cancellous bone structure. The PCL content of the coating layer increased from 9.3±0.4 wt% to 19.0±1.3 wt% when coated with 5 wt% to 15 wt% PCL. The compressive strength improved significantly upon PCL coating. The compressive strength of α-TCP foam, 30±10 kPa, increased to 750±20 kPa when coated with 15 wt% of PCL solution. The in vitro biological evaluations indicated that MC3T3-E1 cells adhered and proliferated well on both the α-TCP and the PCL coated α-TCP foams. It was concluded that α-TCP foam upon coating with bioresorable PCL is of good potential to fabricate cancellous-type artificial bone replacement.

Original languageEnglish
Pages (from-to)5631-5637
Number of pages7
JournalCeramics International
Issue number5
Publication statusPublished - Jul 2013

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry


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