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SLUP (Salt-Leaching Using Powder) 세포지지체의 생체 내외 거동 특성 평가
조용상(Yong Sang Cho),권미령(Quan Meiling),홍명화(Myoung Wha Hong),김영율(Young Yul Kim),조영삼(Young-Sam Cho) 대한기계학회 2015 대한기계학회 춘추학술대회 Vol.2015 No.11
In tissue engineering, salt-leaching method which is one of the conventional methods has been widely used, because if its easiness and simplicity. However, conventional salt-leaching method has some disadvantages: lack of interconnectivity and usage of solvent or high-pressure. Therefore, to overcome these drawbacks, our team developed SLUP (Salt-Leaching Using Powder) method which needs no solvent and high-pressure and provides good interconnectivity. In this study, proposed SLUP scaffold was compared to PED (Precision Extruding Deposition) scaffold using in-vivo and in-vitro experiments. Firstly, SLUP scaffold with ratio of 1:5 wt % (PCL/NaCl) was prepared. Secondly, PED scaffold was prepared with 500 micrometer strand size and 1000 micrometer distance of strands. After that, to assess cell-culture characteristics of osteoblast, scaffolds were assessed by in-vitro CCK-8 assay for 14 days. Furthermore, for in-vivo experiments, rats having calvaria defect were used.