Abstract: The present invention relates to a colorimetric biosensor, preparation method thereof, and antibiotic susceptibility testing method using the same, and more specifically, in the present invention, it is possible to prepare a colorimetric biosensor comprising a porous hydrogel structure including polydiacetylene and a hydrogel polymer (alginate, PEG-DA, etc.); and a microbial nutrient source, and it may be applied to a colorimetric biosensor for detecting microorganisms or a method for testing antibiotic susceptibility of microorganisms for allowing in real-time measurement and exhibiting excellent sensitivity using the colorimetric biosensor.

Abstract: A pixel includes: a storage capacitor connected between a first power supply voltage and a gate node; a first transistor including a gate electrode connected to the gate node; a second transistor to transfer a data signal to a source of the first transistor in response to a scan signal; a third transistor to diode-connect the first transistor in response to the scan signal, and including first and second sub-transistors serially connected between the gate node and a drain of the first transistor; a fourth transistor to transfer an initialization voltage to the gate node in response to an initialization signal, and including third and fourth sub-transistors serially connected between the gate node and the initialization voltage; and an organic light emitting diode including a cathode connected to a second power supply voltage. At least one of the second and fourth sub-transistors includes a bottom electrode.

Abstract: An electromagnetic wave shielding sheet including a carbon composite fiber and manufactured by electrospinning, and a method of manufacturing the same are disclosed. More particularly, an electromagnetic wave shielding sheet includes a carbon composite fiber having a core-shell structure and a resin, and the core-shell structure includes an outer shell including a carbon fiber, and a core including metal nano particles arranged in a length direction of the carbon fiber in the outer shell. The electromagnetic wave shielding sheet includes metal nano particles as electromagnetic wave shielding materials in a carbon fiber, and the oxidation of a metal may be prevented, conductivity in a length direction of the carbon fiber may be secured, and the sheet may be applied to various industrial fields as an electromagnetic shielding material.

Abstract: Provided are a method of preparing a large-area, three-dimensional graphene transparent electrode using an electrospray deposition method and a large-area, three-dimensional graphene transparent electrode prepared therefrom. More particularly, the present invention is related to a method of preparing a large-area, three-dimensional graphene transparent electrode using an electrospray deposition method, which may easily prepare a large-area graphene transparent electrode having high transparency and conductivity through an electrospray process and may obtain effects, which may not be realized in a two-dimensional transparent electrode prepared by a typical method such as CVD, due to a three-dimensional stack structure in which graphene is arranged perpendicular to a substrate, and a large-area, three-dimensional graphene transparent electrode prepared therefrom.

Abstract: An electromagnetic wave shielding sheet including a carbon composite fiber and manufactured by electrospinning, and a method of manufacturing the same are disclosed. More particularly, an electromagnetic wave shielding sheet includes a carbon composite fiber having a core-shell structure and a resin, and the core-shell structure includes an outer shell including a carbon fiber, and a core including metal nano particles arranged in a length direction of the carbon fiber in the outer shell. The electromagnetic wave shielding sheet includes metal nano particles as electromagnetic wave shielding materials in a carbon fiber, and the oxidation of a metal may be prevented, conductivity in a length direction of the carbon fiber may be secured, and the sheet may be applied to various industrial fields as an electromagnetic shielding material.

Abstract: Provided are a method of preparing a large-area, three-dimensional graphene transparent electrode using an electrospray deposition method and a large-area, three-dimensional graphene transparent electrode prepared therefrom. More particularly, the present invention is related to a method of preparing a large-area, three-dimensional graphene transparent electrode using an electrospray deposition method, which may easily prepare a large-area graphene transparent electrode having high transparency and conductivity through an electrospray process and may obtain effects, which may not be realized in a two-dimensional transparent electrode prepared by a typical method such as CVD, due to a three-dimensional stack structure in which graphene is arranged perpendicular to a substrate, and a large-area, three-dimensional graphene transparent electrode prepared therefrom.

Abstract: A dye-sensitized solar cell and a method for manufacturing same are disclosed. The dye-sensitized solar cell includes: a transparent substrate; a working electrode including a dye-adsorbed metallic oxide disposed on the transparent substrate; a separation film disposed on the working electrode; an electrolyte disposed on the separation film; and an opposite electrode disposed on the electrolyte. A carbon nano-web coated with graphene is disposed between the working electrode and the separation film.