Korea Institute of Science and Technology

Other

Solco Biomedical Co., Ltd.

Kwang Duk Ahn

Soo Hyun Kim

Young Hoon Kim

Dong Keun Han

Myung Hwan Oh

Saeyoung Ahn

Yang Kyoo Han

Jun Young Kim

Sang Youl Yoon

Dong Ky Shin

Jeong Beom Kim

Young Min Ju

Sung Hyun Ha

Sang Bong Kwon

Hyo Sup Lee

Jong Hee Kang

Byung Yong Yu

Chong Hong Pyun

Tae Suk Park

Man Ho Kim

Mirinae Kim

Cheon Su Kang

An antibacterial imidazolium compound, a photocurable coating composition, and an antibacterial coating film includes a compound represented by Chemical Formula 1 shown below or derivatives thereof.  In Chemical Formula 1, description of X, Rand, Ris the same as in the detailed description of the invention. The antibacterial imidazolium compound has excellent antibiosis over various strains, and is included in a photocurable coating composition so as to provide an antibacterial coating film by a simple method. Also, in the antibacterial coating film, the antibacterial imidazolium compound is included as a monomer and chemically bonded to a polymer chain, and thus, antibacterial performance can be maintained for a long period of time.

Antibacterial imidazolium compound and antibacterial photocurable thiol-ene compositions comprising the same, and antibacterial polymer coatins prepared therefrom

A method for modifying surface of biodegradable porous polymer scaffold for tissue engineering using a low temperature plasma discharge apparatus, and particularly, a method for inducing the biodegradable porous polymer scaffold to be hydrophilic by graft polymerizing a hydrophilic monomer on the surface of the biodegradable porous polymer scaffold, which is made of polylactic acid, polyglycolic acid or poly(lactic acid-glycolic acid) copolymer, using a low temperature plasma. The surface-modified porous polymer scaffold according to the present invention has an enhanced cell compatibility in cell culture in vitro, and promote tissue growth when the cell is transplanted into a body.

Preparation method of biodegradable porous polymer scaffolds having an improved cell compatibility for tissue engineering

A bottom antireflective coating layer is made from the compositions of organic photosensitive materials that contain isoflavone chromophore by photolithography utilizing a deep ultraviolet light source for producing a submicro-level, large-scale integrated chip. A copolymer containing an isoflavone chromophore is used as a bottom antireflective coating layer for fabricating a 64-megabit or gigabit DRAM. The antireflective coating layer enables not only the suppression of reflections of light that occur under the substrate layer but also the removal of standing waves. Consequently, a high-resolution sub-micron of a 100&tilde;200 nm integrated circuit is able to be stably formed. Therefore, it is possible to increase the production of semiconductors.

Organic polymers for bottom antireflective coating, process for preparing the same, and compositions containing the same

Disclosed is a wire-type corona charger having a wire electrode disposed between ground electrode plates. The wire electrode is supported by the ends of the plurality of wire electrode supporters which are so arranged that their ends have a curvature equal to arcuately-shaped upper edge of the ground electrode plates. The curvature coincides with one of the curvatures of the horizontal axis and the vertical axis of the interior surface of the panel faceplate, while the charger is pivoted along the other curvature of the faceplate. The charger can uniformly charge the photoconductive layer and improves the charging efficiency.

Wire type corona charger for electrophotographical manufacturing of CRTs

This specification provides a biodegradable poly(lactic acid) of a star-shaped structure having a high molecular weight of more than 30,000 with excellent tensile strength and a process for its preparation which comprises direct polycondensation of lactic acid using polyhydroxyl compound having at least four hydroxyl groups.

Biodegradable poly(lactic acid)s having improved physical properties and

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Seoul, South Korea

Kwang Duk Ahn