Abstract: Provided is a display apparatus including a display, a support arm coupled to a rear surface of the display, and a support stand coupled to the support arm and configured to move the support arm along a vertical direction where the display is pivotally rotatable between a first orientation in which a long side of the display is laterally disposed and a second orientation in which the long side of the display is longitudinally disposed. The support stand is configured to upwardly move the display based on the display being rotated from the first orientation to the second orientation, and downwardly move the display based on the display being rotated from the second orientation to the first orientation.

Abstract: Provided is a derivatization reaction gas chromatographic chip including: an analysis solution inlet allowing an analysis solution containing an analysis target to be introduced therethrough; a derivative inlet allowing a reaction solution containing a derivative chemically reacting with the analysis target to be introduced therethrough; a guide channel connecting one end of a first micro-channel to each of the analysis solution inlet and the derivative inlet; the first micro-channel in which a fluid flows and the analysis target in the fluid is vaporized; a first outlet connected to the other end of the first micro-channel; a gas phase inlet communicating with the first outlet; a second micro-channel having one end connected to the gas phase inlet and having a stationary phase formed therein; and a second outlet connected to the other end of the second micro-channel.

Abstract: Disclosed herein are a multi-layer chip for gas chromatography and a method of fabricating the multi-layer chip. The multi-layer chip is fabricated by: forming fine channels at the same positions of a plurality of substrates using only a single photo mask and an alignment key; and stacking the substrates. That is, the multi-layer chip can be fabricated by a simple method, and the total length of the fine channels can be increase without a limit by stacking more substrates. In addition, layers of the substrates can be coated with different stationary phases, and a temperature control device can be attached to heat transfer contact portions of the multi-layer chip for controlling the temperature of the multi-layer chip rapidly and precisely. Therefore, the multi-layer chip may be useful for high-separability gas chromatography to separate and analyze an infinitesimal amount of a sample.

Abstract: The present invention relates to a method for screening a new drug candidate using a liquid chromatography/microfluidic device/mass spectrometry system, and to a liquid chromatography/microfluidic device/mass spectrometry system. The present invention involves the detection of an interaction between molecules on a real-time basis through adjustment of a microreaction between traces of natural material or synthesized new drug candidates and a target material (protein or cell, etc.), thus developing materials for new drug candidates at a lower cost and with high efficiency, while improving quality of life and reducing medical costs. The present invention can be valuably used in increasing new scientific technology through the convergence of nanotechnology, biotechnology, and analytical chemistry technology.

Abstract: The invention includes an isolated bacterium and a consortium of microorganisms including an isolated bacterium of the invention, which is capable of utilizing as a sole carbon source a polychlorinated biphenyl. The invention also includes a recombinant microorganism, such as a bacterium, a yeast or a bacteriophage, transfected with nucleic acid from an isolated bacterium of the invention, which is capable of utilizing as a sole carbon source a polychlorinated biphenyl. The invention also includes an isolated bacterium, which is capable of utilizing as a sole carbon source a chlorobenzoate. In addition, the invention includes an isolated nucleic acid and recombinant enzymes useful in the degradation of a polychlorinated biphenyl. The invention also includes methods for the bioremediation or enhancement of the bioremediation of a PCB-contaminated environment using the bacteria or microorganisms of the invention.

Abstract: The invention includes an isolated bacterium and a consortium of microorganisms including an isolated bacterium of the invention, which is capable of utilizing as a sole carbon source a polychlorinated biphenyl. The invention also includes a recombinant microorganism, such as a bacterium, a yeast or a bacteriophage, transfected with nucleic acid from an isolated bacterium of the invention, which is capable of utilizing as a sole carbon source a polychlorinated biphenyl. The invention also includes an isolated bacterium, which is capable of utilizing as a sole carbon source a chlorobenzoate. In addition, the invention includes an isolated nucleic acid and recombinant enzymes useful in the degradation of a polychlorinated biphenyl. The invention also includes methods for the bioremediation or enhancement of the bioremediation of a PCB-contaminated environment using the bacteria or microorganisms of the invention.