Patent application number | Description | Published |
20090252651 | MICROFLUIDIC DEVICE AND METHOD OF FABRICATING THE SAME - A microfluidic device and a method of fabricating the microfluidic device are provided. The microfluidic device includes: a platform including an upper substrate and a lower substrate that are bonded to face each other; a microfluidic structure obtained by forming grooves in the lower substrate; a lower substrate protrusion pattern including an outline protrusion that protrudes from the lower substrate toward the upper substrate along an outline of the microfluidic structure; and an adhesive layer disposed between the lower substrate protrusion pattern and the upper substrate in order to bond the upper substrate and the lower substrate to each other. The lower substrate protrusion pattern only supports the upper substrate, and remaining portions of the lower substrate except for the lower substrate protrusion pattern do not have structures for supporting the upper substrate. | 10-08-2009 |
20090282681 | VALVE UNIT, MICROFLUIDIC DEVICE INCLUDING THE SAME, AND METHOD OF FABRICATING THE VALVE UNIT - Provided are a valve unit, a microfluidic device including the same, and a method of fabricating the valve unit. The method includes: forming a lower substrate including a channel including a first region and a second region which is deeper than the first region and is adjacent to one side of the first region; forming an upper substrate comprising a valve material chamber which extends only partially through the upper substrate; filling the valve material chamber with a valve material and curing the valve material in the valve material chamber; attaching a surface of the upper substrate in which the valve material chamber is formed to a surface of the lower substrate in which the channel is formed, so that the valve material chamber overlaps an overlapped portion of the first region, and does not overlap a non-overlapped portion of the first region; melting the valve material accommodated in the valve material chamber to flow the valve material into the non-overlapped portion of the first region; and curing the valve material flowed into the non-overlapped portion to close the first region. | 11-19-2009 |
20090286327 | MICROFLUIDIC DEVICE CONTAINING LYOPHILIZED REAGENT THEREIN AND ANALYZING METHOD USING THE SAME - Provided is a microfluidic device suitable for analyzing a liquid sample. The device includes a first chamber to contain a sample; a second chamber to contain a liquid first reagent; a third chamber containing a lyophilized second reagent; a plurality of channels connecting the first, second, and third chambers. | 11-19-2009 |
20090308746 | ANALYZING APPARATUS USING ROTATABLE MICROFLUIDIC DISK - Provided is an analyzing apparatus which can improve an efficiency of detecting light generated from reaction chambers in a microfluidic disk and reduce the occurrence of crosstalk between neighboring reaction chambers. The analyzing apparatus includes: a rotatable disk in which a plurality of reaction chambers where samples and reagents react with each other are formed; a rotation driver rotating the disk; and a photodetector unit detecting light generated from the reaction chambers, and the photodetector unit comprises: a photodetecting device receiving the light to generate electrical signals; and a light transmitting element receiving the light generated from the reaction chambers and transferring the received light to the photodetecting device. | 12-17-2009 |
20100015715 | MICROFLUIDIC DEVICE INCLUDING STRUCTURE THAT INCLUDES AIR VENT AND VALVE, AND METHOD OF TRANSFERRING FLUID USING THE SAME - A microfluidic device and a method of transferring a liquid material using the microfluidic device are provided. The microfluidic device includes a chamber storing a sealed liquid material, and a structure that flows air to the chamber, when the structure is rotated to generate centrifugal force, so that the liquid material may be transferred from the chamber. | 01-21-2010 |
20100044918 | METHOD OF PREPARING SOLID REAGENT AND MICROFLUIDIC DEVICE EMPLOYING THE SOLID REAGENT - In a method of preparing a solid reagent, a liquid reagent is loaded into a plurality of reagent cavities formed in a mold, the loaded liquid reagent is frozen, the frozen reagent is separated from the mold, and the separated frozen reagent is dried to remove humidity therein. | 02-25-2010 |
20100057376 | OPTICAL DETECTING METHOD AND APPARATUS - Provided is an optical detecting method including setting an amplification time for amplifying an electrical signal converted from light generated in reaction chambers, changing the amplification time if a value obtained by amplifying the electrical signal for the amplification time does is not within a predetermined range of values, and amplifying for the changed amplification time and outputting the amplified electrical signal. | 03-04-2010 |
20100060886 | TESTER FOR TESTING OPTICAL DETECTOR - Provided is a tester for testing an optical detector. The tester includes a plurality of light emitting units which emit light beams to the optical detector, wherein the light beams have light intensities different from each other, and a power supply unit which supplies electric power to the plurality of light emitting units. | 03-11-2010 |
20100086441 | BEAM RADIATING DEVICE, BIO-CHEMICAL ANALYZER INCLUDING THE BEAM RADIATING DEVICE, AND BIO-CHEMICAL ANALYZING SYSTEM INCLUDING THE BIO-CHEMICAL ANALYZER - Provided are a beam radiating device that is used to operate elements, such as valves, included in a microfluidic device, a bio-chemical analyzer which includes the beam radiating device and is configured to perform various tests by using a bio-sample, and a bio-chemical analyzing system including the bio-chemical analyzer and the microfluidic device. The beam radiating device includes: an energy source which is spaced apart from a target and emits an electromagnetic wave beam; a first pivot unit which pivots the energy source by a first angle on a first pivot axis that does not pass the target; and a second pivot unit which pivots the energy source by a second angle on a second pivot axis that perpendicularly crosses the first pivot axis and does not pass the target. | 04-08-2010 |