Taek Dong
Taek Dong Chung, Gwa-Cheon KR
Patent application number | Description | Published |
---|---|---|
20100245817 | Microsphere Having Hot Spots and Method for Identifying Chemicals Through Surface Enhanced Raman Scattering Using the Same - The present invention relates to the microsphere whose surface is covered with hot spots and the method for identifying chemicals through Surface Enhanced Raman Scattering (SERS) using the same. The microsphere having hot spots, according to the present invention, includes a microsphere and metal networks as a shell which covers the surface of the microsphere, and nano-sized pores are distributed randomly on the surface or in the interstitial space of the metal networks. The microsphere having hot spots, according to the present invention, can be individually manipulated under a conventional optical microscope. SERS spectra of the monolayer of molecules on Pt or Au can be measured using single microsphere having hot spots mentioned as a sensitive probe. The microsphere having hot spots can be applied for decoding the microspheres with Raman tags flowing in a microfluidic system. | 09-30-2010 |
Taek Dong Chung, Seoul KR
Patent application number | Description | Published |
---|---|---|
20090104689 | Microchip For Use In Cytometry, Velocimetry And Cell Sorting Using Polyelectrolytic Salt Bridges - The present invention relates to a microchip using polyelectrolyte salt bridge for cytometry, velocimetry, and cell sorting. The microchip comprises; a) an inlet for solution to be analyzed, b) a microchannel which provides a moving passage for solution to be analyzed, c) at least one outlet for solution to be analyzed which has passed through the moving passage, d) at least one electrode system comprising a first and a second salt bridges connected to the microchannel (the two salt bridges face each other), and a first and a second reservoirs connected to said each salt bridge (the reservoir comprises electrode and standard electrolyte solution). The microchip detects analytes in the solution to be analyzed (for example, a cell) by detecting change of impedance. In detail, anion in the standard electrolyte solution, which is comprised in the first reservoir, moves from the first salt bridge to the second salt bridge across the microchannel. Impedance change occurs by interference of anion moving across the microchannel and the change can be detected by impedance analyzer connected to electrodes in the first and the second reservoirs. | 04-23-2009 |
20140014507 | HYBRID MICROPROBE FOR ELECTROCHEMICAL AND SERS MONITORING, SCANNING AND FEEDBACK STIMULATION AND THE PREPARATION METHOD THEREOF - The present disclosure relates to a probe capable of electrochemical and Raman spectroscopic monitoring wherein a Raman-active gold microshell having conductivity is attached to the tip of a glass microcapillary tube in which a conductive material is coated on an inner wall thereof by electroless plating. By coupling the probe with a system capable of moving the probe, the activities of various catalyst materials can be detected quickly and information of intermediate products moving from and adsorbed on the surface can be provided. | 01-16-2014 |
Taek Dong Chung, Gwacheon-Si KR
Patent application number | Description | Published |
---|---|---|
20150140469 | COMPARTMENTLESS ABIOTIC SUCROSE-AIR FUEL CELL - The present invention provides a fuel electrode including a substrate and a nanoporous metallic catalyst layer, characterized in that the metallic catalyst layer includes open interconnected 3D nanopores, and the pore and the pore connections have a size suitable for allowing hydrocarbons having alcohol groups to pass through the interconnected pores so that they react in contact with the surface of the catalyst by confined molecular dynamics. Further, the present invention provides a compartmentless fuel cell electrode pair including the fuel electrode of the present invention; and a polymer membrane-coated oxygen electrode into which a catalyst layer is introduced onto the substrate and which blocks the hydrocarbons having alcohol groups as a fuel molecule and allows the diffusion of oxygen molecules. Furthermore, the present invention provides an abiotic saccharide-air fuel cell including the fuel electrode of the present invention, the oxygen electrode to which a nonconducting polymer membrane is applied, and a container capable of containing hydrocarbons having alcohol groups, in which the fuel cell utilizes the hydrocarbons having alcohol groups as a fuel. | 05-21-2015 |