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  1. Article

    Open Access

    Spermidine-induced recovery of human dermal structure and barrier function by skin microbiome

    An unbalanced microbial ecosystem on the human skin is closely related to skin diseases and has been associated with inflammation and immune responses. However, little is known about the role of the skin micro...

    Gihyeon Kim, Misun Kim, Minji Kim, Changho Park, Youngmin Yoon… in Communications Biology (2021)

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  2. No Access

    Article

    A molecular shift register made using tunable charge patterns in one-dimensional molecular arrays on graphene

    The ability to tune the electronic properties of molecular arrays is an important step in the development of molecule-scale electronic devices. However, control over internal device charge distributions by tun...

    Hsin-Zon Tsai, Johannes Lischner, Arash A. Omrani, Franklin Liou… in Nature Electronics (2020)

  3. No Access

    Article

    Temporary Increase of PPAR-γ and Transient Expression of UCP-1 in Stromal Vascular Fraction Isolated Human Adipocyte Derived Stem Cells During Adipogenesis

    In this study, cells from the stromal vascular fraction of human subcutaneous tissues were induced to differentiate toward adipose cells in vitro for 2 weeks. During adipogenic differentiation, we followed the...

    Seong ** Jo, Won Woo Choi, Eun Seong Lee, Jae Yong Lee, Hyun Sun Park… in Lipids (2011)

  4. No Access

    Chapter and Conference Paper

    Automatic Regulation of Output of an Electrohydraulic Left Ventricular Assist Device Using the Polymer Bellows Water Pressure and Motor Current

    An electrohydraulically driven left ventricular assist device (LVAD) has been developed in our laboratory. Over years of in vitro and in vivo testing, a “suction” problem has been pointed out as one of the maj...

    Jae-Soon Choi, Yung-Ho Jo, Won-Woo Choi, Seong-Keun Park, Kyong-Sik Om… in Heart Replacement (1998)

  5. No Access

    Chapter and Conference Paper

    An Adaptive Cardiac Output Control for the Total Artificial Heart Using a Self-Tuning Proportional-Integral-Derivative (PID) Controller

    The development of a control method for the totally implantable artificial heart (TAH) to regulate cardiac output according to the change in physiological demand was the goal of this study. The conventional pr...

    Won Woo Choi, Byoung Goo Min, Hee Chan Kim, Won Kon Kim, Yong Soon Won… in Heart Replacement (1998)

  6. No Access

    Chapter and Conference Paper

    Further Development of the Moving-Actuator Type Total Artificial Heart

    The electromechanical total artificial heart (TAH) developed at Seoul National University Hospital was verified as acceptable for human implantation through several successful animal experiments. In the last t...

    Byoung Goo Min, Jae Mok Ahn, Chan Young Park, Yung Ho Jo, Won Woo Choi… in Heart Replacement (1998)