Abstract:
Iron oxide nano contrast agents for Magnetic Resonance Imaging which have superior T2 contrast effect, and also can be used as a storage or a carrier for drugs and so on, are disclosed. The iron oxide nano contrast agents can be prepared by the steps of: coating surfaces of hydrophobic FeO nanoparticles with a coating material selected from the group consisting of polyethylene glycol-phospholipid conjugate, dextran, chitosan, dimercaptosuccinic acid and mixtures thereof in an organic solvent to form hydrophilic FeO nanoparticles having hydrophilic surfaces and dispersibility in water; dispersing the hydrophilic FeO nanoparticles in water to oxidize FeO; and exposing the oxidized hydrophilic FeO nanoparticles to an acidic buffer to dissolve and remove interior unoxidized FeO portions, and thereby to form Fe3O4 nanoparticles having an interior space.
Abstract:
Disclosed is a novel method for detecting interactions of biomolecules. More particularly, the disclosed method includes (a) preparing a cell comprising (i) a first construct comprising a bait, a first labeling material and a translocation module; and (ii) a second construct comprising a prey and a second labeling material; (b) detecting the distribution of the first construct and the second construct in the cell. the present invention provides a method capable of detecting bindings and interactions occurring in a living cell in real time, and a method for screening a material that alters the binding and the interaction. The method of the present invention overcomes the disadvantages including inaccuracy and complexity of existing biomaterial interaction detection techniques. By labeling both constructs to promote accuracy, the present invention provides a novel real-time, antibody-free analysis.
Abstract:
The present invention relates to an atomic layer polishing method comprising: the steps of: scanning the surface of a specimen to measure a peak site on the specimen surface; spraying toward the measured peak site a gas containing an element capable of binding to a first atom, which is an ingredient of the material of the specimen to form a first reaction gas layer in which the first reaction gas binds to the first atom on the surface of the peak; and projecting ions of inert gas to the peak site on which the first reaction gas layer is deposited to separate the first atom bound to the first reaction gas from the specimen.
Abstract:
The present invention relates to a pharmaceutical composition for the prevention or treatment of diabetes or fatty liver comprising a CYP4A (cytochrome P450A) inhibitor as an active ingredient. The compound of the present invention has activities of promoting glucose uptake into hepatocytes, inhibiting fat accumulation in liver cells, and inhibiting reactive oxygen production in mitochondria, and thus can be very usefully used for the development of a therapeutic agent for diabetes or fatty liver.
Abstract:
Provided are a hydrophilic particle, a method for manufacturing the same, and a contrasting agent using the same. More specifically, the hydrophilic particle according to the inventive concept may include a hydrophobic particle, and an amphiphilic organic dye directly absorbed on a surface of the hydrophobic particle. In this case, the hydrophobic particle includes a center particle, and a hydrophobic ligand covering a surface of the center particle, and the amphiphilic organic dye may be combined to the hydrophobic ligand by a hydrophobic interaction. The hydrophilic particle may have a surface zeta potential lower than a surface zeta potential of the amphiphilic organic dye.
Abstract:
The present invention is about a neutral particle beam source for producing a high density plasma in high vacuum and a thin film deposition system employing said neutral particle beam source, According to the present invention, the plasma is generated by using microwave through the microwave irradiating equipment and a magnetic field by more than one pair of belt type magnets and the high density plasma can be accomplished by maximizing the plasma confinement effect inducing an electron returning trajectory in accordance with the above continuous structure of the belt type magnet in combination with the microwave irradiating equipment.
Abstract:
A powder plasma processing apparatus is disclosed. The powder plasma processing apparatus is a powder plasma processing apparatus of a cylindrical surface discharge plasma module, and the apparatus includes a plate-like electrode layer serving as an external surface of the cylindrical surface discharge plasma module, an insulating layer disposed on an internal surface of the plate-like electrode layer, and a plasma generating electrode disposed on the insulating layer, wherein the cylindrical surface discharge plasma module rotates, an alternating voltage is applied to the plasma generating electrode and the plate-like electrode layer to generate plasma around the plasma generating electrode, and a powder for plasma processing is processed by the plasma within the cylindrical surface discharge plasma module.
Abstract:
The present invention relates to a method for detecting the interactions of biomaterials, and more specifically, to a method for screening a prey which interacts with a bait, the method including: (a) preparing a cell which expresses (i) a first construct comprising a translocation module, a first labeling material, and a first medium, and (ii) a third construct comprising a prey and a second labeling material; (b) introducing (iii) a second construct into the prepared cell, the second construct comprising a bait and a second medium binding with the first medium; (c) allowing the prey and the bait to interact each other; and (d) confirming the interaction between the prey and the bait by detecting intracellular distributions of the first construct and the third construct. Further, the present invention relates to a cell expressing the first construct and the third construct. Still further, the present invention relates to a screening kit comprising the cell and the second construct. The methods of the present invention can overcome disadvantages including inaccuracy and complexity of the existing techniques for biomaterial interaction detection, and can measure the interaction between a material which is not directly produced through gene translation and gene expression in the cell and a material expressed in the cell, and thus are effective in detecting interactions of a broad range of biomaterials.