http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
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.
새로운 바이오 복합 인공지지체의 생체 적합성 및 골형성 성능 평가
신원수(Yuan-Zhu XIn),이준희(Jun-Hee Lee),김영율(Young-Yul Kim),권미령(Mei-Ling Quan),김기정(Ki-Jung Kim),최영현(Young-Hyun Choi),양석조(Seok-Jo Yang) 대한기계학회 2014 대한기계학회 춘추학술대회 Vol.2014 No.11
The scaffolds play an important role in tissue engineering which is a research field for artificial substitutes, since they act as substrates for cell adhesion, proliferation and regeneration of new tissue. In this study, a biodegradable Mg-PCL complex scaffold was developed for bone tissue engineering applications. They were made by mixing polycaprolactone (PCL) as base matrix and some magnesium-ion compound particles, and solid Freeform (SFF) method was used for their fabrication. As a result, the developed scaffold had the following characteristics. Firstly, by contact angle measurement, we knew that their hydrophilicity was enhanced due to adding magnesium-ion compound. Secondly, the compressive mechanical test showed that their elastic modulus was higher than pure PCL scaffolds. Thirdly, the in-vitro cell culture study showed that cells in new scaffolds proliferated faster than in the case of the PCL scaffolds. Consequently, it is found that the Mg-PCL complex scaffold is more effective and suitable substrates for cell culture