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압출방식으로 제작된 폴리카프로락톤 와이어를 이용한 폴리카프로락톤/알지네이트 세포지지체
송기명(Gi Myoung Song),조아라(A Ra Jo),이세환(Se Hwan Lee),조영삼(Young Sam Cho) 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.11
We fabricated PCL (polycaprolactone) wire with 400 and 600 micrometer using extrusion technique. Firstly, one layer was composed with (PCL wire/metal wire/metal wire) repeatedly. The second layer was composed by same process but 90 degree rotated. This layer stacking process was executed repetitively when the height is reached at the designed height. After that, PCL wires became a porous scaffold under the environmental temperature over 60 degrees Celcius. Subsequently, each one metal wire was removed from the repeated (PCL wire/metal wire/metal wire) composition. After that, we injected 8wt% alginate solution into the generated space by removal of metal wire. Moreover, the gelation of alginate solution is performed by 5wt% calcium chloride solution. Consequently, we fabricated the hybrid scaffold composed by PCL/alginate within 400 and 600 micrometer porous dimension.
사출방식을 이용한 다공성 알지네이트 세포지지체 제작과 세포실험
조아라(A Ra Jo),송기명(Gi Myoung Song),이세환(Se Hwan Lee),김범수(Beom Su Kim),유형근(Hyung-Keun You),이승재(Seung Jae Lee),조영삼(Young-Sam Cho) 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.11
We fabricated alginate scaffold using injection molding technique in conjunction with WNM (Wire-Network Molding) technique. 4wt% alginate and 96wt% D.I. water were composed for the scaffold material and chondrocyte cell was dispersed within this alginate solution. After that, alginate solution with cell was injected into WNM with 600 and 400 micrometer wires, respectively. For the gelation of alginate solution, 5% Calcium chloride solution was used. With fabricated alginate porous scaffolds, cell culturing experiments were exercised and cell-culturing characteristics were assessed.
압출방식으로 제작된 PCL/NaCl 와이어를 이용하여 제작된 이중기공 세포지지체 제작
조용상(Yong Sang Cho),송기명(Gi Myoung Song),안상현(Shang Hyun An),이세환(Se Hwan Lee),조영삼(Young-Sam Cho) 대한기계학회 2010 대한기계학회 춘추학술대회 Vol.2010 No.11
Firstly, we prepared PCL/NaCl mixture with 20wt% NaCl constituents. After that, we fabricated PCL/NaCl wire with 400 and 600 micrometer using extrusion technique. Firstly, one layer was composed with (PCL wire/metal wire) repeatedly. The second layer was composed by same process but 90 degree rotated. This layer stacking process was executed repetitively when the height is reached at the designed height. After that, PCL wires became a porous scaffold under the environmental temperature over 60 degrees Celcius. Subsequently, metal wires were removed from the resultant. We soak this scaffold into D. I. water to leach out salt. Finally, we could get bi-pore scaffolds.