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  1. No Access

    Article

    Estimation of surface area concentration of workplace incidental nanoparticles based on number and mass concentrations

    Surface area was estimated by three different methods using number and/or mass concentrations obtained from either two or three instruments that are commonly used in the field. The estimated surface area conce...

    J. Y. Park, G. Ramachandran, P. C. Raynor, S. W. Kim in Journal of Nanoparticle Research (2011)

  2. No Access

    Article

    Controlled cellular orientation on PLGA microfibers with defined diameters

    In this study, we investigated the effects of the diameter of microfibers on the orientation (angle between cells’ major axis and the substrate fiber long axis) of adhered cells. For this purpose, mouse fibrob...

    C. M. Hwang, Y. Park, J. Y. Park, K. Lee, K. Sun… in Biomedical Microdevices (2009)

  3. No Access

    Article

    A cell culturing system that integrates the cell loading function on a single platform and evaluation of the pulsatile pum** effect on cells

    In this paper, we present a novel microfluidic system with pulsatile cell storing, cell-delivering and cell culturing functions on a single PDMS platform. For this purpose, we have integrated two reservoirs, a...

    J. Y. Kim, H. Park, K. H. Kwon, J. Y. Park, J. Y. Baek… in Biomedical Microdevices (2008)

  4. No Access

    Article

    Liver-directed gene therapy of diabetic rats using an HVJ-E vector containing EBV plasmids expressing insulin and GLUT 2 transporter

    Insulin gene therapy in clinical medicine is currently hampered by the inability to regulate insulin secretion in a physiological manner, the inefficiency with which the gene is delivered, and the short durati...

    Y D Kim, K-G Park, R Morishita, Y Kaneda, S-Y Kim, D-K Song, H-S Kim… in Gene Therapy (2006)

  5. No Access

    Article

    Friction and Adhesion Properties of Clean and Oxidized Al-Ni-Co Decagonal Quasicrystals: A UHV Atomic Force Microscopy/Scanning Tunneling Microscopy Study

    The tribological properties of adhesion and friction between 10-fold Al-Ni-Co decagonal quasicrystals and conductive W2C and TiN coated tips were studied in ultrahigh vacuum (UHV) with an atomic force microscope....

    J.Y. Park, D.F. Ogletree, M. Salmeron, C.J. Jenks, P.A. Thiel in Tribology Letters (2004)

  6. No Access

    Article

    Characterization of the distinct orthotopic bone-forming activity of 14 BMPs using recombinant adenovirus-mediated gene delivery

    Efficacious bone regeneration could revolutionize the clinical management of bone and musculoskeletal disorders. Although several bone morphogenetic proteins (BMPs) (mostly BMP-2 and BMP-7) have been shown to ...

    Q Kang, M H Sun, H Cheng, Y Peng, A G Montag, A T Deyrup, W Jiang, H H Luu… in Gene Therapy (2004)

  7. No Access

    Article

    Transcription factor decoy for AP-1 reduces mesangial cell proliferation and extracellular matrix production in vitro and in vivo

    Diabetic nephropathy is characterized by an expansion of glomerular mesangium, caused by mesangial cell proliferation and excessive accumulation of extracellular matrix (ECM) proteins, which eventually leads t...

    J D Ahn, R Morishita, Y Kaneda, H J Kim, Y D Kim, H J Lee, K U Lee… in Gene Therapy (2004)

  8. No Access

    Article

    Novel E2F decoy oligodeoxynucleotides inhibit in vitro vascular smooth muscle cell proliferation and in vivo neointimal hyperplasia

    The transcription factor, E2F, plays a critical role in the trans-activation of several genes involved in cell cycle regulation. Previous studies showed that the transfection of cis element double-stranded dec...

    J D Ahn, R Morishita, Y Kaneda, H S Kim, Y-C Chang, K-U Lee, J-Y Park… in Gene Therapy (2002)

  9. No Access

    Article

    Enthalpy recovery of a glass-forming liquid constrained in a nanoporous matrix: Negative pressure effects

    The T g of organic liquids confined to nanoporous matrices and that of thin polymer films can decrease dramatically from the bulk value. One possible explanation for this phenomenon is the development of hydrosta...

    S.L. Simon, J.-Y. Park, G.B. McKenna in The European Physical Journal E (2002)

  10. No Access

    Article

    Al-21Ti-23Cr High-Temperature Protective Coating on TiAl Intermetallic Compounds by RF Magnetron Sputtering

    Ti-48A1 specimens were coated with Al-21Ti-23Cr film at 200 W, 0.8 Pa and 573 K by RF magnetron sputtering. The oxidation behavior of the coated specimens was investigated through isothermal and cyclic oxidati...

    J. Y. Park, H. N. Lee, S. W. Park, M. H. Oh, D. M. Wee in MRS Online Proceedings Library (1996)