Patent application number | Description | Published |
20080269077 | CENTRIFUGAL MICROFLUIDIC DEVICE HAVING SAMPLE DISTRIBUTION STRUCTURE AND CENTRIFUGAL MICROFLUIDIC SYSTEM INCLUDING THE CENTRIFUGAL MICROFLUIDIC DEVICE - Provided are a centrifugal microfluidic device having a sample distribution structure and a centrifugal microfluidic system including the centrifugal microfluidic device. The centrifugal microfluidic device includes: a rotatable platform; a sample chamber which is disposed in the rotatable platform and houses a fluid sample; a distribution channel connected to an outlet of the sample chamber; a valve which is disposed in the outlet of the sample chamber; a plurality of non-vented reaction chambers which are disposed in the rotatable platform outside of the distribution channel in the radial direction; and a plurality of inlet channels connecting the distribution channel with the reaction chambers. | 10-30-2008 |
20090035847 | CENTRIFUGAL FORCE-BASED MICROFLUIDIC DEVICE FOR NUCLEIC ACID DETECTION AND MICROFLUIDIC SYSTEM INCLUDING THE SAME - Provided are a centrifugal force-based microfluidic device for separating and amplifying a nucleic acid of a target cell and a microfluidic system including the same. The microfluidic device includes a rotary platform; a target cell nucleic acid extraction unit; and a polymerase chain reaction (PCR) unit wherein in a microfluidic structure arranged in the platform and connected to the target cell nucleic acid extraction unit. | 02-05-2009 |
20090053108 | CENTRIFUGAL FORCE-BASED MICROFLUIDIC DEVICE FOR BLOOD CHEMISTRY ANALYSIS - Provided is a microfluidic device that can automatically perform various types of biological blood analysis. In the microfluidic device, a specimen is centrifugally separated and the centrifugally separated specimen is diluted into various dilution ratios. Also, at least two reagents that are required for one reaction and that need to be separately stored are stored in separate chambers, and they are mixed when a reaction is needed. Thus, various conventional blood analyzing reagents can be used as they are or after being minimally processed in the microfluidic device. | 02-26-2009 |
20090163382 | PRIMER SET FOR AMPLIFYING TARGET SEQUENCE(S) OF ANTIBIOTIC-RESISTANT BACTERIAL SPECIES, PROBE OR PROBE SET SPECIFICALLY HYBRIDIZING WITH TARGET SEQUENCE(S) OF ANTIBIOTIC-RESISTANT BACTERIAL SPECIES, METHOD OF DETECTING ANTIBIOTIC-RESISTANT BACTERIAL SPECIES USING THE PROBE OR PROBE SET, AND KIT FOR DETECTING ANTIBIOTIC-RESISTANT BACTERIAL SPECIES - Provided are a primer set for amplifying target sequence(s) of antibiotic-resistant bacterial species, a probe or probe set specifically hybridizing with target sequence(s) of antibiotic-resistant bacterial species, a microarray immobilized with the probe or probe set, a kit comprising the primer set and a method of detecting at least one antibiotic-resistant bacterial species using the probe or probe set. | 06-25-2009 |
20100086925 | MICROFLUIDIC STRUCTURE FOR MULTI-ASSAY AND MICROFLUIDIC DEVICE COMPRISING THE SAME - Exemplary embodiments relate to a microfluidic structure including: a plurality of sample chambers; a reaction chamber in which at least two types of materials, which respectively specifically react with at least two types of target materials, are immobilized; a detection chamber connected to the reaction chamber; a path connecting the chambers; and a valve for opening and closing the path, and a microfluidic device including the microfluidic structure. Since at least two types of materials specifically binding to target materials are immobilized in a reaction chamber of the microfluidic structure, space may be efficiently used and the target materials may be assayed in a one-step test. An internal space of the microfluidic device using the microfluidic structure, the amount of samples, and costs for manufacturing the microfluidic device may be reduced, and internal quality control may be efficiently performed using the microfluidic structure as a control for the operations. | 04-08-2010 |
20100101106 | LYOPHILIZING TRAY EMPLOYING REAGENT CARTRIDGE, LYOPHILIZING SYSTEM EMPLOYING THE SAME, AND METHOD OF PREPARING LYOPHILIZED REAGENT - A method of manufacturing a lyophilized reagent, including mounting a plurality of reagent cartridges in which a liquid reagent is loaded in a tray including one or more tunnel-shaped first rails having opened end portions in a lengthwise direction and an opening formed in the top of the one or more first rails; closing the opened end portions, placing the tray in a lyophilizer and lyophilizing the liquid reagent according to a lyophilizing program. | 04-29-2010 |
20100174491 | METHODS OF MEASURING CONCENTRATION OF COMPONENT IN BIOCHEMICAL SAMPLE AND ESTIMATING RELIABILITY OF TEST RESULT - Provided are a method of measuring a concentration of a component in a biochemical sample such as serum, and a method of estimating the reliability of a test result using the method. The method of measuring a concentration of a component includes: preparing plural standard samples having at least one common component which has varying concentrations; measuring absorbances of the component in the standard samples at each of the concentrations for plural light beams having different wavelength bands; determining a regression equation of a relationship between the concentration of the component and the measured absorbances at plural wavelength bands; and applying the regression equation by measuring absorbances at the plural wavelength bands of the biochemical sample and applying the measured plural absorbances of the biochemical sample to the regression equation to calculate the concentration of the component. | 07-08-2010 |
20100175993 | DISC-SHAPED MICROFLUIDIC DEVICE CAPABLE OF DETECTING ELECTROLYTES INCLUDED IN SPECIMEN BY USING ELECTROCHEMICAL METHOD - Provided is a rotatable disc-shaped microfluidic device which can electrochemically detect electrolytes comprised in a specimen. The microfluidic device including: a specimen chamber which accommodates a specimen; a detection chamber which receives the specimen from the specimen chamber; and an ion sensor which is formed in the detection chamber to electrochemically detect electrolytes in the specimen and includes an indicator electrode, a standard electrode and an ion selective film formed on a portion of the indicator electrode. The standard specimen is accommodated in the detection chamber, and a standard potential is measured. Then, the specimen is accommodated in the detection chamber, and a measurement potential is obtained to detect the concentration of the electrolytes comprised in the specimen. | 07-15-2010 |
20100175994 | DISC-SHAPED MICROFLUIDIC DEVICE CAPABLE OF DETECTING ELECTROLYTES INCLUDED IN SPECIMEN BY USING ELECTROCHEMICAL METHOD - Provided is a rotatable disc-shaped microfluidic device which can electrochemically detect electrolytes comprised in a specimen. The microfluidic device including: a specimen chamber which accommodates a specimen; a detection chamber which receives the specimen from the specimen chamber; and an ion sensor which is formed in the detection chamber to electrochemically detect electrolytes in the specimen and includes an indicator electrode, a standard electrode and an ion selective film formed on a portion of the indicator electrode. The standard specimen is accommodated in the detection chamber, and a standard potential is measured. Then, the specimen is accommodated in the detection chamber, and a measurement potential is obtained to detect the concentration of the electrolytes comprised in the specimen. | 07-15-2010 |
20100290955 | CENTRIFUGAL FORCE-BASED MICROFLUIDIC DEVICE FOR BLOOD CHEMISTRY ANALYSIS - Provided is a microfluidic device that can automatically perform various types of biological blood analysis. In the microfluidic device, a specimen is centrifugally separated and the centrifugally separated specimen is diluted into various dilution ratios. Also, at least two reagents that are required for one reaction and that need to be separately stored are stored in separate chambers, and they are mixed when a reaction is needed. Thus, various conventional blood analyzing reagents can be used as they are or after being minimally processed in the microfluidic device. | 11-18-2010 |
20110085950 | CENTRIFUGAL FORCE BASED MICROFLUIDIC SYSTEM AND BIO CARTRIDGE FOR THE MICROFLUIDIC SYSTEM - A microfluidic system based on centrifugal force and a bio cartridge for the microfluidic system are provided. The system includes a spindle motor, a rotatable frame detachably mounted on the motor and having a plurality of cells separated by partition walls, and the bio cartridge detachably accommodated in one of the plurality of cells. The bio cartridge includes a chamber for storing a fluid, a channel for transporting the fluid, and a valve for controlling the flow of the fluid. The valve may include a phase transition material, and exothermic minute particles dispersed in the material and generating heat when energy is applied thereto. | 04-14-2011 |
20120015451 | FLUID SENSOR PREVENTING GENERATION OF AIR BUBBLES - Provided herein is a fluid sensor, which includes a closed reaction unit in which reaction of a fluid sample takes place. The reaction unit is tapered on a side through which the fluid is injected so as to prevent generation of air bubbles during the injection of the fluid. Thus, the sensor has improved sensitivity. | 01-19-2012 |
20120178178 | BIOSENSOR CARTRIDGE - A biosensor cartridge includes a plasma separator, a plasma metering chamber, a mixer, and a biosensor. | 07-12-2012 |
20120208290 | METHOD FOR ENHANCING MASS OF GOLD NANOPARTICLE THROUGH LIGHT-IRRADIATION, METHOD AND SENSOR FOR DETECTING MOLECULAR BINDING USING THE METHOD FOR ENHANCING MASS - Provided are a sensor for detecting molecular binding by increasing the mass of a gold nanoparticle through light-irradiation and a method thereof. In the method, light-irradiation increases the size of gold nanoparticles without using a reducing agent, to enhance the mass. Accordingly, selectivity may be improved, and the sensitivity of detection may be improved due to a change in various properties of a gold nanoparticle. | 08-16-2012 |
20130115632 | HIGHLY SENSITIVE METHOD FOR ASSAYING TROPONIN I - A highly sensitive method of assaying an analyte present in a sample using protamine is provided, as well as an immunoassay reagent and biosensor that reduces non-specific binding by electrostatic interaction of protamine with fibrinogen present in the sample. | 05-09-2013 |
20130344618 | BIOSENSOR USING AGGLOMERATION OF MAGNETIC NANOPARTICLES AND DETECTION METHOD BY THE SAME - A biosensor and method for detecting a target material using an agglomeration of magnetic nanoparticles are provided. | 12-26-2013 |