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김은채(Eun. Chae. Kim),강내운(Nae-Un Kang),정훈진(Hun-Jin Jeong),곽소정(So-Jung Gwak),이승재(Seung-Jae Lee) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.11
Osteoarthritis is a disease caused by degenerative changes in articular cartilage. In particular, articular cartilage has the characteristics of avascular tissue, so it is difficult to regenerate. For this reason, many approaches have been actively studying to regenerate the cartilage using tissue engineering. In this study, we developed a compact bioreactor system that is capable of dynamic vertical compression stimulation for effectively analyze the cartilage regeneration. This bioreactor is compatible with commercial cell culture plates and is designed to simultaneously apply different sizes of compressive stimulation. In addition, it was made in a compact size (180 × 200 × 160 mm) to fit into the commercial incubator. We established a 1Hz vertical-direction compressive to give the biomimetic stimulation. Also, we demonstrated chondrocyte culture stability without inflammation in the bioreactor system via CCK-8 assay.
Tri-axial 노즐을 이용한 기능성 방수유출장치 개발
김재석(Jae-Seok Kim),강내운(Nae-Un Kang),정훈진(Hun-Jin Jeong),곽소정(So-Jung Gwak),조영삼(Young-Sam Cho),이승재(Seung-Jae Lee) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.11
Among eye diseases, glaucoma refers to a disease that causes damage to the optic nerve when the optic nerve is compressed or poor blood supply due to an increase in intraocular pressure (IOP). As a treatment for glaucoma, non-surgical treatment through drug therapy is initially performed, but when symptom worsens, Glaucoma drainage devices insertion, which can lower IOP by releasing aqueous humor from the intraocular, is performed. Most of the drainage devices currently used in clinical practice are made of biocompatible silicon or metal. However, due to its uniform inner diameter, it is difficult to effectively discharge aqueous humor during intraocular pressure fluctuations period, and there are in causing side effects and complications after surgery. In this study, to overcome this limitation, glaucoma drainage devices with an adjustable inner diameter were fabricated using a tri-axial nozzle. and the diameter of the fabricated structure was confirmed through a microscope.
Development of the compact bioreactor capable of compressive stimulation
Eun Chae Kim(김은채),Nae-Un Kang(강내운),Hun-Jin Jeong(정훈진),Seung-Jae Lee(이승재) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.4
Knee arthritis has considered a degenerative disease in which one of the most rated according to aging. Articular cartilage is a soft tissue composed of collagen, glycosaminoglycan, water, etc., and it is difficult to regenerate when the tissue is damaged due to these have the characteristic of avascular tissue. For this reason, many approaches have been actively studying to regenerate the cartilage using tissue engineering and regenerative medicine. However, it is insufficiently investigated that pathophysiology analysis of cartilage regeneration in biomimetic various stimulation environments. In this study, we developed a compact bioreactor that can simulate the regeneration of the cartilage defect and mimic the stimulation environment in the body. The developed bioreactor consists of a stimulation part and a driving part. The bioreactor is manufactured to be compatible with various types of a commercial cell culture plates, thereby it can maximize the efficiency of cell culture analysis. In addition, we established 1Hz vertical-direction compressive to give the biomimetic stimulation. Also, it was made in a compact size (180×198×138 mm) to fit into the commercial incubator.