Nano Express

Nanoscale Research Letters

, 7:78

Open Access This content is freely available online to anyone, anywhere at any time.

Gelatin-layered and multi-sized porous β-tricalcium phosphate for tissue engineering scaffold

  • Sung-Min KimAffiliated withDepartment and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry
  • , Soon-Aei YiAffiliated withDepartment and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry
  • , Seong-Ho ChoiAffiliated withDepartment of Periodontology, Yonsei University College of Dentistry
  • , Kwang-Mahn KimAffiliated withDepartment and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry
  • , Yong-Keun LeeAffiliated withDepartment and Research Institute of Dental Biomaterials and Bioengineering, Yonsei University College of Dentistry Email author 

Abstract

The multi-sized porous β-tricalcium phosphate scaffolds were fabricated by freeze drying followed by slurry coating using a multi-sized porous sponge as a template. Then, gelatin was dip coated on the multi-sized porous β-tricalcium phosphate scaffolds under vacuum. The mechanical and biological properties of the fabricated scaffolds were evaluated and compared to the uniformly sized porous scaffolds and scaffolds that were not coated by gelatin. The compressive strength was tested by a universal testing machine, and the cell viability and differentiation behavior were measured using a cell counting kit and alkaline phosphatase activity using the MC3T3-E1 cells. In comparison, the gelatin-coated multi-sized porous β-tricalcium phosphate scaffold showed enhanced compressive strength. After 14 days, the multi-sized pores were shown to affect cell differentiation, and gelatin coatings were shown to affect the cell viability and differentiation. The results of this study demonstrated that the multi-sized porous β-tricalcium phosphate scaffold coated by gelatin enhanced the mechanical and biological strengths.

Keywords

β-tricalcium phosphate scaffold multi-sized pores gelatin coating mechanical property biological property