Sogang University is one of the leading research and liberal arts universities of South Korea. The university was established in 1960 by the Wisconsin province of the Society of Jesus to provide education based on Catholic beliefs inspired by the Jesuit education philosophy. Sister schools of Sogang founded on Jesuit philosophies include Georgetown University and Sophia University.It ranked first in Korea among four-year universities without medical schools in JoongAng Ilbo's University Ranking Evaluation in 2008 and second in Korea in terms of reputation of graduates' ability in Chosun Ilbo's University Ranking Evaluation in 2009. Wikipedia.
Sogang University | Date: 2016-04-18
The present disclosure provides a liposome for delivering an extracellular matrix, a method for promoting cell growth, and a method for preparing a liposome for delivering an extracellular matrix. According to the present disclosure, the liposome for delivering an extracellular matrix promotes cell attachment and growth, and through this matter, the liposome for delivering an extracellular matrix can be applied to cell or tissue regeneration.
Sogang University | Date: 2015-09-09
An oxygen concentrating apparatus includes: at least one adsorption bed which is filled with absorbent capable of selectively adsorbing nitrogen relative to oxygen; an air supplier which supplies pressurized air to the adsorption bed; a flow channel regulating valve unit which regulates flow channels by allowing the pressurized air to be supplied to the adsorption bed from the air supplier and by allowing the air to be discharged from the adsorption bed to be depressurized such that a nitrogen adsorption process and a nitrogen desorption process are alternately performed; and a water removing unit which separates water from the pressurized air supplied from the air supplier and removes the separated water. The flow channel regulating unit and the water removing unit are at least partially housed within a single housing.
Samsung and Sogang University | Date: 2016-03-07
Embodiments of the present disclosure provide a composition for forming a polymer film, a polymer film prepared therewith, and an electronic device including the polymer film. The composition for forming a polymer film may include an inorganic particle grafted with an organosiloxane polymer represented by Formula 1; and a polymer matrix having a vinylene-based repeating unit: In Formula 1, A may be a moiety grafted to the inorganic particle, B may be a moiety capable of reacting with the polymer matrix, R_(1 )and R_(2 )may each independently be selected from an alkyl group and alkoxy group, R_(11), R_(12), R_(21), R_(22), R_(31), and R_(32 )may each independently be selected from moiety B, an alkyl group, and an alkoxy group, and I, n, and m may denote the numbers of respective repeating units.
Samsung and Sogang University | Date: 2016-06-06
A data driver includes a digital to analog converter configured to receive a reference gray voltage and image data, and configured to generate gray voltages corresponding to the image data, and an output buffer including a plurality of buffer circuits connected to an output terminal of the digital to analog converter, and configured to selectively receive one of the gray voltages.
Moon J.H.,Sogang University |
Yang S.,University of Pennsylvania
Chemical Reviews | Year: 2010
The chemical aspects of three-dimensional photonic crystals have been reported. Three-dimensional (3D) photonic crystals (PCs) are crystalline materials where the refractive index is periodically modulated on a length scale comparable to the light wavelength. 3D PCs that can reflect light from any direction or guide photons potentially offer revolutionary advances in the next generation microphotonic devices and the integration of existing opto-electronic devices. The control of surface chemistry, composition, and concentration of colloidal particles and choice of dispersion medium are critical to the long-range ordering and orientation in colloidal crystals. Rising interest is witnessed in creating 3D structures from environmentally responsive materials, such as hydrogels, and through infiltration of responsive nanoparticles into the 3D templates.
Sogang University | Date: 2016-09-07
Disclosed is a method for manufacturing a microcantilever having a predetermined thickness that includes forming a liquid synthetic resin for cantilevers to a thickness corresponding to the thickness of the microcantilever on an upper surface of a base block having an adhesive base and a non-adhesive base, and curing the liquid synthetic resin for cantilevers via a boundary between the adhesive base and the non-adhesive base, wherein the adhesive base has stronger adhesivity to the cured synthetic resin for cantilevers than the non-adhesive base.
Sogang University | Date: 2016-02-26
The present disclosure relates to a reactive porogen using cyclic organic polyol and an ultra low dielectric film prepared using the same, and more particularly, to novel cyclic organic polyol as a cyclic organic polyol compound which can be completely pyrolyzed at a temperature of 500 C. or less, does not leave carbon residue during a heat treatment if an end hydroxyl group of the cyclic organic compound is substituted by a functional group of alkylalkoxysilane and then used as a reactive porogen, and is involved in a sol-gel reaction of organic silicate and suppresses phase separation and thus forms pores having a uniform size and has excellent mechanical properties as compared with a porosity, a reactive porogen using the ash-free cyclic organic polyol, and an ultra low dielectric film prepared using the same.
Sogang University | Date: 2016-02-26
A fluid pumping system may include an electroosmotic pump; and a separation member provided at least one end of the electroosmotic pump, and configured to separate the fluid and a transfer target fluid. The electroosmotic pump may include: a membrane that allows a fluid to move therethrough; and a first electrode and a second electrode which are respectively provided at two opposite sides of the membrane, and each of which is formed of a porous material or has a porous structure to allow a fluid to move therethrough; each of the first electrode and the second electrode may contain a conductive polymer in which an anionic polymer is included or may be made of porous carbon only; and an electrochemical reaction of the first electrode and the second electrode may take place as a cation is moved in a direction whereby a charge balance is established.
Sogang University | Date: 2016-06-24
By forming a monolayer of metal core-shell nanoparticles, transferring the monolayer to various substrates and removing the shells surrounding the particles by way of selective etching, it is possible to form large-area uniform nanogap structures very easily. In addition, a nanogap is formed by an ultrasmall void having no limitation in diffusion between metal cores through Van der Waals interaction between the metal core particles, as the etching proceeds. It is possible to enhance a near-field significantly around the nanogap structure.
Sogang University | Date: 2016-09-13
The present disclosure relates to a method for preparing metal nanoparticles, and particularly, to a method for preparing metal nanoparticles, the method including reacting a hydrazine-carbon dioxide binded compound with a metal oxide or a metal ion compound.