摘要:
A gene analysis device including an illumination optical system radiating exciting light onto a sample solution; a microfluidic device for forming a bio-reaction space of the sample solution and including at least one micro-chamber in which a reflection pattern is formed; and a detection optical system for detecting a fluorescence signal generated by a bio-reaction in the micro-chamber and comprising a photodetector.
摘要:
A gene analysis apparatus includes a sample preparation chip in which a polymerase chain reaction (“PCR”) sample is prepared, a PCR chip in which a PCR is performed on the PCR sample, and a package layer on which the sample preparation chip and the PCR chip are mounted. The package layer includes a channel through which a material flows from the sample preparation chip to the PCR chip. The sample preparation chip and the PCR chip are on a same side or on opposing sides of the package layer.
摘要:
A microfluidic device including at least one microvalve which controls a flow of a fluid, where the at least one microvalve includes: a pneumatic layer, a fluidic layer disposed opposite to the pneumatic layer; an elastomer membrane disposed between the pneumatic layer and the fluidic layer; and an asymmetric valve seat protruding from a surface of the fluidic layer toward a surface of the elastomer membrane and asymmetrically dividing a space between the fluidic layer and the elastomer membrane.
摘要:
A microfluidic device including a microvalve includes a first substrate, a second substrate facing the first substrate, an elastic film between the first and second substrates, a microfluidic channel on the second substrate, a valve seat of the second substrate protruding in the microfluidic channel, and a fine structure on a surface of the elastic film, facing the valve seat and which contacts the valve seat when the microvalve is operated.
摘要:
A micro-device for disrupting cells includes a first chamber in which the cells are disrupted, a second chamber which is pressurized and depressurized, a flexible membrane which separates the first chamber and the second chamber and is vibrated by pressuring and depressurizing the second chamber, and a micro-unit confined in the first chamber, where the micro-unit disrupts the cells in the first chamber
摘要:
A method of lysing at least one of a cell and a virus, the method including: contacting a sample, which includes at least one of a cell and a virus, with a plurality of beads which are disposed in a first chamber to obtain a combination of the sample and the beads; and agitating the combination of the sample and the beads to lyse the at least one of the cell and the virus, wherein in the first chamber a liquid volume fraction is 0.6 or less, and wherein the liquid volume fraction is a value obtained by dividing a liquid volume of the first chamber by a pure void volume equivalent to a sum of the liquid volume of the first chamber and a void volume of the first chamber.
摘要:
A micro-device for disrupting cells includes a first chamber in which the cells are disrupted, a second chamber which is pressurized and depressurized, a flexible membrane which separates the first chamber and the second chamber and is vibrated by pressuring and depressurizing the second chamber, and a micro-unit confined in the first chamber, where the micro-unit disrupts the cells in the first chamber.
摘要:
A fluorescence detection optical system detects fluorescence beams with two or more different wavelengths and maintains a focal position through an automatic focusing function. A multi-channel fluorescence detection apparatus includes the fluorescence detection optical system. The fluorescence detection optical system includes an automatic focusing unit which receives light reflected off a microfluidic device and determines a focal point by using an astigmatic method or a knife edge method, and an actuator which adjusts a position of an objective lens according to control of the automatic focusing unit. In addition, the fluorescence detection optical system may include a plurality of dual band pass filters, dichroic devices, etc., which provide light beams emitted from at least two light sources and transfer fluorescence generated from the microfluidic device to a photodetector.
摘要:
A polymerase chain reaction (“PCR”) apparatus includes a PCR chip holder which accommodates and supports a PCR chip, a housing which supports ends of the PCR chip holder, a temperature control element which moves perpendicularly with respect to the PCR chip holder in a space between the housing and the PCR chip holder in the housing, and an elastic unit which elastically biases the temperature control element toward the PCR chip holder, between the temperature control element and the housing. The temperature control element includes a top surface which is selectively contacted to a bottom surface of the PCR chip.
摘要:
A fluorescence detecting optical system, and a multi-channel fluorescence detection apparatus comprising same, comprising a light source that emits excitation light, a polarizer that transmits light having a predetermined polarization component, a polarizing beam splitter that transmits light having a predetermined polarization component and reflects light having a different polarization component than the predetermined polarization component, and a quarter-wave plate converting linearly polarized to circularly polarized light or vice versa.