摘要:
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.
摘要:
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.
摘要:
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.
摘要:
An antenna includes a dielectric substrate, a radiator disposed on one surface of the dielectric substrate, a feeding conductive pattern having one end connected with the radiator and the other end connected with an external feed line, a first slot disposed in the feeding conductive pattern, a ground plane disposed on the other surface of the dielectric substrate, and a second slot disposed on the ground plane.
摘要:
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.
摘要:
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.
摘要:
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.