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조직 및 장기 재생 분야에서의 3D 프린팅 기술의 적용 현황
안치범,손국희,이진우 대한이식학회 2015 Korean Journal of Transplantation Vol.29 No.4
Three-dimensional (3D) printing, also known as additive manufacturing (AM), has been used frequently in regenerative or translational medicine. In addition, recent advances in 3D printing technologies have opened the door to 3D bio-printing, which uses cells, biocompatible materials, and scaffolding simultaneously to generate 3D functional tissues. Although tissue generation by bio-printing such as multilayered skin, bone, bladder, and vascular grafts has shown good results, there are still several challenges related to printing of entire organs, particularly modulation of vascular formation during organ regeneration. This article provides a background and introduction to bio-printing for creation of artificial organs and tissues.
심규식,김성은,윤영필,Daniel I. Jeon,김학준,박경순,송해룡 한국공업화학회 2017 Journal of Industrial and Engineering Chemistry Vol.55 No.-
We fabricated biphasic calcium phosphate nanoparticles (BCP NPs)-immobilized on the surface of 3D printed PCL (BCP-IM-PCL) scaffolds, and evaluated in vitro osteogenesis and in vivo new bone formation in rat tibial defect model. In vitro and in vivo studies showed that BCP-IM-PCL significantly enhanced osteogenic markers (i.e., ALP activity, calcium deposition, and the expression of osteocalcin and osteopontin) and markedly increased new bone formation and mineralized bone tissues in tibial defect area, compared to unmodified PCL and BCP-mixed PCL scaffolds. This study demonstrated that BCP NPsimmobilized on the surface of PCL scaffolds are promising templates for bone tissue regeneration.
Shim, K.S.,Kim, S.E.,Yun, Y.P.,Jeon, D.I.,Kim, H.J.,Park, K.,Song, H.R. THE KOREAN SOCIETY OF INDUSTRIAL AND ENGINEERING 2017 JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY -S Vol.55 No.-
<P>We fabricated biphasic calcium phosphate nanoparticles (BCP NPs)-immobilized on the surface of 3D printed PCL (BCP-IM-PCL) scaffolds, and evaluated in vitro osteogenesis and in vivo new bone formation in rat tibial defect model. In vitro and in vivo studies showed that BCP-IM-PCL significantly enhanced osteogenic markers (i.e., ALP activity, calcium deposition, and the expression of osteocalcin and osteopontin) and markedly increased new bone formation and mineralized bone tissues in tibial defect area, compared to unmodified PCL and BCP-mixed PCL scaffolds. This study demonstrated that BCP NPs-immobilized on the surface of PCL scaffolds are promising templates for bone tissue regeneration. (C) 2017 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.</P>