발간논문

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Vol.44, No.6, 441 ~ 446, 2006
Title
Special Edition : Symposium on Nano and Biomaterials ; Evaluation of Porous Titanium Implants Prepared by Spark Plasma Sintering
오익현 Ik Hyun Oh , 손현택 Hyeon Taek Son , 장세훈 Se Hun Chang , 김형모 Hyung Mo Kim , 이기용 Ki Yong Lee , 박순섭 Sun Sub Park , 송호연 Ho Yeon Song
Abstract
Porous Ti compacts were fabricated by spark plasma sintering (SPS) method and their Young`s modulus and biocompatibility were investigated in this study. Ti powders were made from commercially available pure Ti electrode (grade 2) using the plasma rotating electrode process (PREP) in an Ar atmosphere. Porous Ti compacts for biomedical applications were successfully fabricated in the porosity range from 5 to 36 vol%. Young`s modulus of porous Ti compacts having porosity from 31 to 36 vol % is almost the same as that of human cortical bone. To investigate the biocompatibility of pure Ti, fibroblast-like L-929 and osteoblast-like MG-63 cells were cultured with the presence of the extract solution from pure Ti powder and porous body. The viabilities of cells cultured with the diluted extract solutions were almost the same compared to that of the control. Also, porous Ti compacts did not induce any morphologic damage of cell.
Key Words
Spark plasma sintering, Elastic modulus, Porosity, Biocompatiobility
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