Samsung Electronics Co., Ltd.

Samung Electronics Co., Ltd

Jung-im Han

Joon-Ho Kim

Kwang-wook Oh

Kak Namkoong

Chin-sung Park

Young-Sun Lee

Jun-hoe Cha

Hun-joo Lee

Young-sun Lee

Shin-i Yoo

Young Im Choi

Geun-bae Lim

Seung-yeon Yang

Yoon-kyoung Cho

Hee-kyun Lim

Geun-Bae Lim

Young-a Kim

Jin-tae Kim

Jung-joo Hwang

Christopher Hansung Ko

Sang-hyo Kim

Hyo-yeon Lee

Mi-kyung Kim

Jun-Hoe Cha

A microfluidic device for electrochemically regulating the pH of a fluid includes: an ion-exchange material; an anode chamber having a surface defined by a surface of the ion-exchange material and an anode electrode disposed along an edge of the surface of the anode chamber; and a cathode chamber having a surface defined by an opposite surface of the ion-exchange material and a cathode electrode disposed along an edge of the surface of the cathode chamber.

Method of regulating pH of fluid using the microfluidic device

Provided is a microfluidic device for electrochemically regulating the pH of a fluid comprising: a cathode substrate; an anode substrate facing the cathode substrate and forming a reaction chamber with the cathode substrate; and a nonconductor which forms a boundary between the portions of the cathode substrate and the anode substrate that are capable of contacting one another, wherein at least one of the cathode substrate and the anode substrate is a semiconductor doped with impurities and the other is a metal electrode.

Microfluidic device for electrochemically regulating the pH of a fluid therein using semiconductor doped with impurity and method of regulating the pH of a fluid in a microfluidic device using the same

Provided is a microfluidic device for electrically regulating the pH of a fluid comprising: a first chamber comprising a first electrode; a second chamber comprising a second electrode; a third chamber comprising a third electrode, a metal ion exchange membrane between the first and second chambers; and a hydrogen ion exchange membrane between the first or second chamber and the third chamber.

Microfluidic device for electrically regulating the pH of a fluid therein and method of regulating the pH of a fluid in a microfluidic device using the same

Microfluidic device for electrochemically regulating pH of fluid

An apparatus for regulating salt concentration, a lab-on-a-chip including the same and a method of regulating salt concentration using the apparatus are provided. The apparatus includes: a reaction chamber that is defined by a cation exchange membrane and an anion exchange membrane and is selected from the group consisting of a biomolecule extraction chamber, an amplification chamber, a hybridization chamber, and a detection chamber; a first electrode chamber that is defined by the anion exchange membrane and a first electrode and includes an ion exchange medium; and a second electrode chamber that is defined by the cation exchange membrane and a second electrode and includes an ion exchange medium. Even without injecting solutions with different salt concentrations into the reaction chamber by operating pumps and valves for each operation stage, the salt concentration can be reversibly regulated in situ by adjusting the polarity, intensity and application time of a voltage.

Apparatus for regulating salt concentration using electrodialysis, lab-on-a-chip including the same, and method of regulating salt concentration using the apparatus

A handheld centrifuge includes an inertia body having an axle and a pair of inertia wheels coupled to the axle. The inertia wheels are coupled to the axle in substantially perpendicular direction to the axle, and spaced apart from each other. A string is connected to the axle. At least one closed vessel is detachably installed on an outer face of the inertia wheel to contain a substance to be centrifuged. The closed vessel is installed in substantially radial direction of the inertia wheel.

Handheld centrifuge

Provided is a method of isolating and purifying biomolecules using a hydrogel, the method including: bring a sample containing charged biomolecules into contact with a hydrogel to bind the biomolecules to the hydrogel; washing the hydrogel bound with the biomolecules; and eluting the bound biomolecules using an elution solvent. According to the method, the use of a hydrogel with a large surface area reduces the isolation time of biomolecules to 5 min or less, an external device such as an electromagnet is not required, and small-sized systems or LOC can be easily implemented due to applicability to microsystems through a polymer patterning technique.

Isolation and purification method of biomolecules using hydrogel

Provided is a method of lysing a cell or a virus using a free radical. The method includes: applying an electric field to a mixture of a metal ion, a peroxide, and a cell or virus solution to increase the free radical generation, thereby lysing a cell or a virus. In the present method, cell lysis may be efficiently performed using a low electrical energy (several mV to several V). When the present method is applied to a microsystem, cell lysis can occur at a desired time and in a desired space by controlling the electrical energy, thus being suitable to realize a lab-on-a-chip (LOC).

Cell lysis method using free radical

A micro PCR device comprising an amplification chamber is provided. The amplification chamber has an inner surface coated with a polycationic polymer or a polyanionic polymer and includes electrodes.

Micro PCR device, method of amplifying nucleic acid and method of measuring concentration of PCR product using the same

Provided is a micro PCR device. The micro PCR device includes a PCR chamber having electrodes. First primers of PCR primer sets are immobilized on the surfaces of the electrodes and second primers labeled with nanoparticles of the PCR primer sets are added to the PCR chamber.

Micro PCR device, method for amplifying nucleic acids using the micro PCR device, and method for measuring concentration of PCR products using the micro PCR device

Provided are a primer set selected from the group consisting of primers having nucleotide sequences as set forth in SEQ ID NOS: 1&#x2013;40, a method for detecting hepatitis B virus by polymerase chain reaction (PCR) using the primer set, and a hepatitis B virus detection kit including the primer set.

PCR primer set for detecting hepatitis B virus, method for detecting hepatitis B using the primer set, and hepatitis B virus detection kit including the primer set

A novel electrically conductive polymer, a sensor using the electrically conductive polymer, and a method for detecting a target molecule that hybridizes to a probe, using the sensor, are provided. The electrically conductive polymer has the following formula: where m is 1, 2, or 3; R is a hydroxysuccinimidyl group, a hydroxyphthalimidyl group, or a pentafluorophenolyl group; and n is zero or an integer.

Electrically conductive polymer, sensor using the same, and method for detecting target molecule using the sensor

A conductive compound of formula (I) below, an electrode coated with the conductive compound, a sensor including the electrode, and a target molecule detection method using the sensor are provided: wherein Y is a carbonyl or &#x2014;NH&#x2014;; R is one of H, OH, a leaving group, and a probe group; l is an integer from 3 to 6; m is an integer from 1 to 4; and n is an integer from 0 to 3.

Conductive compound, electrode and sensor containing the same, and target molecule detection method using the sensor

A novel electrically conductive polymer, a sensor using the electrically conductive polymer, and a method for detecting a target molecule that hybridizes to a probe, using the sensor, are provided. The electrically conductive polymer has the following formula:where m is 1, 2, or 3; R is a hydroxysuccinimidyl group, a hydroxyphthalimidyl group, or a pentafluorophenolyl group; and n is zero or an integer.

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Seoul, South Korea

Jung-im Han