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송영진,정종현,김도균,Young Jin Song,Jong Hyun Jung,Do Gyun Kim 대한안과학회 2014 대한안과학회지 Vol.55 No.12
Purpose: To investigate the relationship between the concentration of aqueous humor cytokines and the severity of diabetic retinopathy. Methods: Thirty-six subjects were included in the control, non-proliferative diabetic retinopathy (NPDR), and proliferative diabetic retinopathy (PDR) groups, each group has 12 patients. Aqueous levels of cytokines (interleukin (IL)-1α, IL-1β, IL-2, IL-4, IL-6, IL-8, IL-10, vascular endothelial growth factor (VEGF), monocyte chemoattractant protein (MCP)-1, interferon (IFN)-γ, tumor necrosis factor (TNF)-α) were investigated according to the severity of diabetic retinopathy. Results: When the control group was compared with the PDR and NPDR groups, aqueous levels of IL-6 were significantly higher in PDR patients than in those of both the control and NPDR groups (<EM>p</EM> = 0.016 and p = 0.003, respectively). The aqueous levels of VEGF were significantly higher in the eyes of PDR patients than in those of the control group (<EM>p</EM> = 0.003). There were no statistically significant differences between the 3 groups with regard to other cytokines. Conclusions: Aqueous levels of IL-6 and VEGF were higher in the eyes of PDR patients than in those of healthy controls. J Korean Ophthalmol Soc 2014;55(12):1821-1827
송영진,이준하,Song, Young-Jin,Lee, Jun-Ha 한국반도체디스플레이기술학회 2010 반도체디스플레이기술학회지 Vol.9 No.1
We investigated a linear carbon nanotube motor serving as the key building block for nano-scale motion control by using molecular dynamics simulations. This linear nano-motor, is based on the electrostatically telescoping multi-walled carbon-nanotube with ultralow intershell sliding friction, is controlled by the gate potential with the capacitance feedback sensing. The resonant harmonic peaks are induced by the interference between the driving frequencies and its self-frequency. The temperature is very important factor to operate this nanomotor.
Nanocrystalline Copper Oxide(II)-Catalyzed Alkyne-Azide Cycloadditions
송영진,유충열,홍종태,김승주,손승욱,장혜영 대한화학회 2008 Bulletin of the Korean Chemical Society Vol.29 No.8
Although the use of Cu(II) salts as catalysts without reductants is limited in the cycloaddition of acetylenes with azides, the catalytic system employing average 10 nm CuO(II) nanoparticles in the absence of reductants shows good catalytic activity to form 1,4-disubstituted 1,2,3-triazoles even in wet THF as well as water. It is also noticeable that CuO(II) nanoparticle catalysts can be recycled with consistent activity. A range of alkynes and azides were subject to the optimized CuO(II) nanoparticle-catalyzed cycloaddition reaction conditions to afford the desired products in good yields.