摘要:
A microarray including hydrogel and a plurality of probes which are immobilized in discrete regions of the hydrogel, and a method of preparing the same are provided. When using the microarray and method, a solid substrate is not required and many biomolecules can be immobilized in a small volume, thereby obtaining high sensitivity. Since gel can be cut to obtain many pieces, many microarrays can be prepared at once.
摘要:
A micro-fluid reaction vessel includes an upper plate formed of an elastomer, a lower plate adhered to the upper plate, a micro-chamber and a micro-channel formed on an inner surface of the upper plate facing the lower plate and an inlet hole and an outlet hole formed in the upper plate and through which a fluid flows into or out of, respectively. The micro-channel is constructed to be closed by pressure applied to the upper plate and elastically restored when the pressure is not applied. A micro fluid reaction method uses the micro fluid reaction vessel and a method of manufacturing forms the microfluid reaction vessel.
摘要:
A method of sequentially performing concentration and amplification of nucleic acid in a single micro chamber includes: introducing a nucleic acid-containing sample and a solution including a kosmotropic salt to a micro chamber having a hydrophilic interior surface to concentrate the nucleic acid by binding the nucleic acid on the interior surface of the micro chamber; and performing a polymerase chain reaction (PCR) by adding a PCR mixture to the chamber. Since the nucleic acid is reversibly bound to the interior surface of the micro chamber, PCR yield is higher compared with a surface of aluminum oxide in which irreversible binding occurs. In addition, all processes are sequentially performed in a single micro chamber so that the number of samples, consumables, time, and labor for treatment and analysis can be reduced, detection sensitivity can be improved, and risk of sample cross contamination significantly reduced without sample loss by eliminating transporting of the sample. A complete automated system for concentration and amplification of nucleic acid is thus readily provided.
摘要:
Provided herein is a method and apparatus for disrupting cells and purifying nucleic acids in a single chip. The method comprises irradiating a chip with a laser beam, wherein the chip comprises a solid support on which a cell lysis enhancing metal oxide layer, and a cell binding metal oxide layer have been deposited.
摘要:
Provided is a method of purifying nucleic acid, the method including: contacting a nucleic acid-containing sample and a solution containing a kosmotropic salt on a solid support having a hydrophilic functional group on its surface to bind the nucleic acid to the solid support. Since the solid support is used as it is without any surface treatment, manufacture of the apparatus is very easy, and nucleic acid can be bound to the solid support without specific additives in a wide pH range, so that the apparatus can be used for a Lab-On-a-Chip.
摘要:
Provided herein is a method and apparatus for disrupting cells and purifying nucleic acids in a single chip. The method comprises irradiating a chip with a laser beam, wherein the chip comprises a solid support on which a cell lysis enhancing metal oxide layer, and a cell binding metal oxide layer have been deposited.
摘要:
A gas sensor includes a substrate having a plurality of through holes, a pair of electrodes disposed on the substrate, wherein the plurality of through holes are disposed between the pair of electrodes and a plurality of carbon nanotubes covering at least a portion of the plurality of through holes, wherein at least a portion of the plurality of carbon nanotubes is connected with the pair of electrodes.
摘要:
A method of manufacturing a gas sensor includes using a metal ligand and carbon nanotubes (“CNTs”). The method includes forming electrodes on a substrate, coating a paste, in which the metal ligand including a metal having adsorption selectivity with respect to at least one specific gas and carbon nanotubes (“CNTs”) are mixed, on the substrate on which the electrodes are formed, and reducing the metal ligand in the paste.
摘要:
An electrodialysis apparatus includes a sample chamber including first and second dialysis membranes and filled with a sample between the first dialysis membrane and the second dialysis membrane, an anode chamber including an anode and filled with a first chamber solution between the anode and the first dialysis membrane, and a cathode chamber including a cathode and filled with a second chamber solution between the cathode and the second dialysis membrane. In particular, when a voltage is applied to the anode and the cathode, ionic materials of the sample move to the anode and cathode chambers.