摘要:
There are provided a method and apparatus for detecting nucleic acid using bead and nanopore, and more specifically, a method and apparatus capable of detecting nucleic acid fragments of 70 bps to 300 bps in length by a nanopore detection unit with nanopores of 20 to 120 nm in diameter by attaching a bead to a nucleic acid probe and then detecting the bead attached to nucleic acid not nucleic acid itself. Accordingly, the present invention can detect the nucleic acid fragments using the nanopore detection unit with nanopores of 20 to 120 nm in diameter, even in case where Polymerase Chain Reaction (PCR) products are given as the sample, particularly the PCR products are the nucleic acid fragments of 70 to 300 bps in length.
摘要:
Provided is a microfluidic apparatus including: a microfluidic structure for providing spaces for receiving a fluid and for forming channels, through which the fluid flows; and valves for controlling the flow of fluid through the channels in the microfluidic apparatus. The microfluidic structure includes: a sample chamber; a sample separation unit receiving the sample from the sample chamber and separating a supernatant from the sample by using a centrifugal force; a testing unit receiving the supernatant from the sample separation unit for detecting a specimen from the supernatant using an antigen-antibody reaction, and a quality control chamber for identifying reliability of the test.
摘要:
Provided is a biochemical analyzer in which a microfluidic biochemical assay may be performed. The analyzer includes: a microfluidic device loading space including a microfluidic device supporting unit detachably supporting a microfluidic device including an energy application region in which an energy is applied; an energy source loading space including an energy source applying the energy to the radiation application region; and an isolation wall isolating the microfluidic device loading space and the energy source loading space to prevent heat transfer between the microfluidic device loading space and the energy source loading space and including a window through which the energy can be transmitted. A method of controlling an internal temperature of the biochemical analyzer is also provided.
摘要:
Provided are a sensing switch and a sensing method using the same. The sensing switch includes: a substrate; a supporter on the substrate; a sensing plate that is connected to a side of the supporter and is in parallel with the substrate by a predetermined distance; a receptor binding region on an upper surface of an end portion of the sensing plate; an electric or magnetic field generation device that induces deflection of the sensing plate when a receptor bound to the receptor binding region is selectively bound to an electrically or magnetically active ligand; and a pair of switching electrodes that are separated by a predetermined distance and is connected when the sensing plate contacts the substrate due to the deflection of the sensing plate. A target material need not be labelled, a signal processing of a fluorescent or electrical detection signal using an analysis apparatus is not required, and a signal can be directly decoded by confirming whether a current flows through the switch.
摘要:
An apparatus and method which print a biomolecular droplet onto a solid substrate using an electric charge concentration effect comprises: a needle shaped electric field forming electrode which is made of a conductive material, is disposed vertically, and comprises an accommodating area and a nozzle formed on a bottom end of the accommodating area; a solid substrate which is electrically grounded, is disposed below the electric field forming electrode, and comprises a moisture thin film and a target surface onto which the biomolecular droplet is discharged from the nozzle of the electric field forming electrode; and an open circuit type voltage applying unit which is electrically connected to the electric field forming electrode, applies a charge to the electric field forming electrode, and causes the biomolecular droplet to be ejected onto the target surface.
摘要:
Provided is a microfluidic apparatus including: a microfluidic structure for providing spaces for receiving a fluid and for forming channels, through which the fluid flows; and valves for controlling the flow of fluid through the channels in the microfluidic apparatus. The microfluidic structure includes: a sample chamber; a sample separation unit receiving the sample from the sample chamber and separating a supernatant from the sample by using a centrifugal force; a testing unit receiving the supernatant from the sample separation unit for detecting a specimen from the supernatant using an antigen-antibody reaction, and a quality control chamber for identifying reliability of the test.
摘要:
Disclosed herein are a cell culture chip for monitoring a cell culture in real time and a method of monitoring the cell culture using the cell culture chip. The cell culture chip includes a cell culture chamber formed by side walls of a non-conductive material and a bottom layer of an insulating material and capable of accommodating a cell culture media. The cell culture chip also includes a semiconductor layer disposed under the bottom layer, a metal layer disposed under the semiconductor layer, and an electrode disposed in the cell culture chamber. The cell culture chip monitors both the states of cells attached to walls of the cell culture chamber and the states of cells floating in the cell culture media.
摘要:
An apparatus for printing a biomolecular droplet onto a substrate using an electric charge concentration effect includes; an electric field forming electrode including an accommodating area in which the biomolecular droplet including micro magnetic beads is accommodated and a nozzle formed on an end of the accommodating area through which the biomolecular droplet is discharged, a substrate disposed below the electric field forming electrode, including a grounded target surface onto which the biomolecular droplet discharged from the nozzle of the electric field forming electrode is deposited, a magnet disposed below the substrate which applies a magnetic force on the micro magnetic beads, and an open circuit type voltage applying unit electrically connected to the electric field forming electrode which applies a charge to the electric field forming electrode which generates an electrical force which causes the biomolecular droplet to be ejected onto the target surface of the substrate.
摘要:
Disclosed herein is a method for detecting DNA using a nanopore including treating the surface of a nanopore formed in a solid substrate with a substance carrying positive charges; introducing a DNA-containing sample into the surface-treated nanopore; and detecting electrical signals generated during translocation of the sample through the nanopore. Also disclosed herein is device for detecting DNA using a nanopore including a solid substrate including a nanopore, treated with a substance which carries positive charges to change a surface property of the nanopore so that the nanopore surface carries positive charges; an electrode applying voltage to the nanopore of the solid substrate; and a measurement unit measuring an electrical signal generated during translocation of a DNA-containing sample through the nanopore.
摘要:
Provided is a linker functional group patterning method for biomolecule immobilization. The patterning method includes preparing a coating composition including a hydrophobic group-containing silane compound and a hydrophilic group-containing silane compound; forming a surface tension control layer by coating the coating composition on a substrate for biomoleucle immobilization; and forming a linker functional group pattern on the surface tension control layer using a coating composition including a linker functional group-containing compound followed by thermal treatment. The linker functional group pattern is formed in a uniform size and distribution and contains high-density linker functional groups.