Abstract
Among the various additive manufacturing technologies, laser sintering / melting can provide higher fineness of built parts and wider range of material choice. Previously, the authors reported introduction of this technology to fabrication of tissue engineering scaffold. In the report, high porosity, which is required by a cell culture reason, was successfully obtained by making it from mixture of grains of sodium chloride and powder of the scaffold material and leaching the filler afterward. On the other hand, high thermal conductivity of the filler led to low process resolution. In this paper, use of poly-glycolic acid as the filler material is introduced. The resolution is successfully improved with the porosity maintained above 90%. Fabricated tissue engineering scaffolds are tested in cell culture.
