Samsung Electronics Co., Ltd.

Beom-seok Lee

Jeong-gun Lee

Jong-myeon Park

Yoon-kyoung Cho

In-seok Kang

Hye-Jung Cho

Jin-seok Hong

Dustin Moon

Su-hyeon Kim

Nam Huh

Jong-suk Chung

Sung-woo Hong

Jae-suk Moon

Yoon-kyuong Cho

Young-Sun Lee

Jung-Hwan Oh

Jung-nam Lee

Kyung-young Kim

Suhyeon Kim

Jeonggun Lee

Jung-suk Yoo

Bum-keun Kim

Provided is a rotatable microfluidic device for conducting simultaneously two or more assays. The device includes a platform which can be rotated, a first unit which is disposed at one portion of the platform and detects a target material from a sample using surface on which a capture probe selectively binds to the target material is attached, and a second unit which is disposed at another portion of the platform and detects a target material included in the sample by a different reaction from the reaction conducted in the first unit.

Microfluidic device for simultaneously conducting multiple analyses

Provided is a method of mixing fluids including introducing at least two kinds of fluids to a chamber of a substrate including a microchannel structure; and alternately rotating the substrate clockwise and counter-clockwise until the at least two kinds of fluids are mixed, wherein the rotation is changed from one direction to the opposite direction before a vortex created in the mixing chamber by the one direction rotation disappears.

Method of mixing at least two kinds of fluids in centrifugal micro-fluid treating substrate

Provided are a valve unit and a microfluidic device including the valve unit. The valve unit includes: a valve substance container containing a valve substance, the valve substance including a phase change material that is solid at ambient temperature and melts by absorbing energy; a valve connection path connecting the valve substance container to a channel forming a fluid passage; and a pair of drain chambers formed along the channel at both sides of the valve connection path.

Valve unit, microfluidic device with the valve unit, and microfluidic substrate

Provided is a microfluidic device. The microfluidic device includes a sample chamber in which a sample is accommodated. The sample chamber includes: an introduction portion including a loading hole through which the sample is loaded; an accommodation portion including a discharge hole; and a neck portion forming a boundary between the introduction portion and the accommodation portion. The neck portion provides a capillary pressure for controlling flow of the sample between the introduction portion and the accommodation portion.

Microfluidic device and method of loading sample into the microfluidic device

Provided are a valve unit and a reaction apparatus having the valve unit. The valve unit includes a phase transition material, which melts and expands upon an application of the electromagnetic waves to the valve filler, and the valve filler is directed into the channel through the connection passage and closes the channel. The valve unit also includes heat generation particles, which are dispersed in the phase transition material and generate heat upon an application of electromagnetic wave energy.

Valve unit and reaction apparatus having the same

A method of printing droplets using capillary electric charge concentration includes: providing a capillary nozzle comprising a back-end part and a front-end part disposed substantially opposite the back-end part; spacing a target member apart from the front-end part of the capillary nozzle at a predetermined distance; immersing the back-end part in a solution; and supplying a voltage to the solution. The back-end part transmits the solution to the front-end part.

Method of printing droplet using capillary electric charge concentration

A centrifugal force-based microfluidic device for nucleic acid extraction and a microfluidic system are provided. The microfluidic device includes a body of revolution; a microfluidic structure disposed in the body of revolution, the microfluidic structure including a plurality of chambers, channels connecting the chambers, and valves disposed in the channels to control fluid flow, the microfluidic structure transmitting the fluid using centrifugal force due to rotation of the body of revolution; and magnetic beads contained in one of the chambers which collect a target material from a biomaterial sample flowing into the chamber, wherein the microfluidic structure washes the magnetic beads which collect the target material, and separates nucleic acid by electromagnetic wave irradiation from an external energy source to the magnetic beads. The microfluidic system includes the microfluidic device; a rotation operating unit which rotates the body of revolution; and an external energy source which irradiates electromagnetic waves.

Centrifugal force-based microfluidic device for nucleic acid extraction and microfluidic system including the microfluidic device

Disclosed is a microfluidic device including a microfluidic structure formed in a platform in which various examinations, such as an immune serum examination, can be automatically performed using the biomolecule microarray chip. The biomolecule microarray chip-type microfluidic device using a biomolecule microarray chip comprises: a platform which is rotatable; a microfluidic structure disposed in the platform, comprising: a plurality of chambers; a plurality of channels connecting the chambers each other; and a plurality of valves controlling flow of fluids through the channels, wherein the microfluidic structure controls flow of a fluid sample using rotation of the platform and the valves; and a biomolecule microarray chip mounted in the platform such that biomolecule capture probes bound to the biomolecule microarray chip contact the fluid sample in the microfluidic structure.

Microfluidic device using microfluidic chip and microfluidic device using biomolecule microarray chip

Provided are a droplet emitting apparatus and a method of emitting droplets using the same. The apparatus includes a solution tank for containing a solution; a nozzle including an opening through which at least a droplet of the solution is emitted; and a voltage generator including a piezoelectric material for generating a voltage by instantaneous pressure application, wherein the voltage generated by the pressure to the piezoelectric material is applied to the solution in order for the at least a droplet of the solution to be emitted through the nozzle.

Droplet emitting apparatus having piezoelectric voltage generator and method of emitting a droplet using the same

Provided are a valve filler and a valve unit including the valve filler. The valve filler includes: a phase transition material; and a heating fluid comprising a carrier oil and a plurality of micro heating particles suspended in the carrier oil, the heating fluid being mixed with the phase transition material, wherein, when external energy is supplied, the micro heating particles receive the external energy and generate heat to melt the phase transition material into a fluid state, and when no external energy is supplied, the phase transition material hardens into a solid state.

Microfluidic valve filler and valve unit including the same

Provided are a centrifugal force based platform formed to be rotatable and including a home mark having a retro-reflective property of light, and a centrifugal force based microfluidic system including the platform. The method of determining a home position of the centrifugal force based platform includes: rotating the platform formed and including a home mark having a retro-reflective property of light; emitting light from a light-emitting unit to the platform; and detecting the emitted light, which is retro-reflected by the home mark, in a light-receiving unit, and then determining the home position of the platform based on the detected light.

Centrifugal force based platform, microfluidic system including the same, and method of determining home position of the platform

A centrifugal force-based microfluidic device in which a sample including particles and a fluid is centrifugally separated such that the separated fluid is quantitatively distributed, and a microfluidic system including the centrifugal force-based microfluidic device are provided. The centrifugal force-based microfluidic device includes a microfluidic structure in which, within a rotatable disc-shaped platform, a sample, including particles and a fluid, is quickly centrifugally separated into the particles and the fluid using the rotation of the disc-shaped platform and the fluid having a certain volume of the separated fluid is discharged by rotation of the disc-shaped platform.

Centrifugal force-based microfluidic device and microfluidic system including the same

A microfluidic apparatus having a substrate including a channel through which a fluid is conveyed, a fluid container in which at least one kind of fluid is accommodated and which is disposed on the substrate so as to allow the fluid to flow toward the channel, and a fluid flow controller which controls a flow of the fluid toward the channel from the fluid container.

Growing community of inventors

Yongin-si, South Korea

Beom-seok Lee