Samsung Electronics Co., Ltd.

University of Minnesota

Kyu-tae Yoo

Jeo-young Shim

Sung-ouk Jung

Kyu-sang Lee

Ji-na Namgoong

Yeon-ja Cho

Won-seok Chung

Kak Namkoong

Joon-Ho Kim

Jun-Hong Min

Kui-hyun Kim

Seong-jin Kim

Jin-tae Kim

Jang-seok Ma

Kwang-Hyeon Lee

Eui-sik Yoon

Chang-eun Yoo

Su-hyeon Kim

Soo-suk Lee

Geun-Bae Lim

Soo-hyung Choi

Kwang-hyeon Lee

Joon-shik Park

Jin-na Namgoong

Byung-soo Gim

An apparatus and method of providing blood glucose management information includes a determination unit that determines a similarity of a blood glucose change pattern of a user by comparing blood glucose information obtained from the user and stored blood glucose information, an extraction unit that extracts at least one piece of blood glucose information from the stored blood glucose information according to the similarity and generates extracted blood glucose information, and an interface unit which provides the blood glucose management information, which corresponds to the extracted blood glucose information, to the user.

Method and apparatus for providing blood glucose management information

Provided is a field effect transistor (FET) type biosensor including a source electrode, a gate, and a drain electrode. A ligand that can bind to a side of a nucleic acid is added to the surface of the gate. In a conventional FET type biosensor, it is difficult to detect a signal within the debye length because a target nucleic acid is directly fixed to the surface of a gate of the conventional FET. However, in the present invention, this problem can be overcome and the debye length can be increased by treating the surface of a gate of an FET sensor with a ligand that can bind to a side of a nucleic acid. The ligand can be adsorbed onto the surface of the gate. In this case, the nucleic acid is adsorbed parallel to the surface of the gate, not perpendicular to the surface of the gate, thus generating an effective depletion region. In addition, hybridization efficiency can be increased because a hybridized sample can be injected into an FET sensor at high ionic strength.

FET-type biosensor with surface modification

A method of displaying health information of a user, the method including: monitoring if a sharing request for a health information of a user is made by an external device, which provides a web page representing the health information of the user in the form of an image; downloading a captured image of the web page from the external device if the sharing request for the health information of the user is made; and displaying the downloaded captured image.

System and method of sharing web page that represents health information

A method of logging in a health information tele-monitoring device by using a personal portable device. The method includes issuing a security key embedded in a health information tele-monitoring device to a personal portable device, storing the security key issued by the health information tele-monitoring device in the user's personal portable device; requesting the user's personal portable device to authenticate the health information tele-monitoring device in order to connect the health information tele-monitoring device to a healthcare server; and authorizing access of the health information tele-monitoring device to the healthcare server.

Method and apparatus for logging in a health information tele-monitoring device by using a personal portable device

An apparatus and method for detecting ionic materials includes a sensing electrode which contacts a liquid sample and detects a sensing voltage corresponding to a surface potential which is changed by a concentration of ionic materials in the liquid sample, a first switching transistor having a first terminal connected to the sensing electrode and a second terminal connected to a first node, a second switching transistor having a first terminal connected to a reset voltage and a second terminal connected to the first node, and a sensing transistor having a gate connected to the first node.

Apparatus having reduced noise and method of using the apparatus for detecting ionic materials

Provided are a FET-based sensor for detecting an ionic material, an ionic material detecting device including the FET-based sensor, and a method of detecting an ionic material using the FET-based sensor. The FET-based sensor includes: a sensing chamber including a reference electrode and a plurality of sensing FETs; and a reference chamber including a reference electrode and a plurality of reference FETs. The method includes: flowing a first solution into and out of the sensing chamber and the reference chamber of the FET-based sensor; flowing a second solution expected to contain an ionic material into and out of the sensing chamber while continuously flowing the first solution into and out of the reference chamber; measuring a current in a channel region between the source and drain of each of the sensing and reference FETs; and correcting the current of the sensing FETs.

FET-based sensor for detecting ionic material, ionic material detecting device using the FET-based sensor, and method of detecting ionic material using the FET-based sensor

A field effect transistor for detecting an analyte having a thiol group includes a substrate, a source region and a drain region formed apart from each other on the substrate, the source region and the drain region being doped such that a polarity of the source and drain region is opposite to a polarity of the substrate, a channel region disposed between the source region and the drain region, an insulating layer formed of an electrically insulating material and disposed on the channel region, a gold layer disposed on the insulating layer and a reference electrode disposed apart from the gold layer.

Field effect transistor comprising gold layer, microfluidic device comprising the field effect transistor, and method of detecting analyte having thiol group using the field effect transistor and the microfluidic device

A method of detecting a presence of bio-molecules, or a concentration of the target bio-molecules using a field effect transistor, includes allowing a first sample including a first target bio-molecule to contact a sensing surface of the field effect transistor and measuring a change in an electric signal of the field effect transistor, the field effect transistor including a substrate, a source region and a drain region, the source region and the drain region formed apart from each other on the substrate, the source region and the drain region each doped to having an opposite polarity than a polarity of the substrate, a channel region disposed between the source region and the drain region and an insulating layer including the sensing surface, the insulating layer disposed on the channel region.

Method of detecting bio-molecules using field effect transistor without fixing probe bio-molecules on the gate sensing surface

A field effect transistor for detecting ionic material and a method of detecting ionic material using the field effect transistor. The field effect transistor for detecting ionic material includes a substrate formed of a semiconductor material, a source region and a drain region spaced apart from each other in the substrate and doped with an opposite conductivity type to that of the substrate, a channel region interposed between the source region and the drain region, an insulating layer disposed on the channel region and formed of an electrically insulating material, a first reference electrode disposed at an edge of the upper portion of the insulating layer and a second reference electrode disposed to be spaced apart from the insulating layer.

Field effect transistor for detecting ionic material and method of detecting ionic material using the same

A method of manufacturing a calibration apparatus for an optical scanner. The method includes reacting a substrate coated with a functional group and a molecule capable of forming an activated excimer to immobilize the molecule on the substrate.

Apparatus for calibrating optical scanner, method of manufacturing the same, and method of calibrating optical scanner using the same

Provided are a sensing switch and a sensing method using the same. The sensing switch includes: a substrate; a supporter on the substrate; a sensing plate that is connected to a side of the supporter and is in parallel with the substrate by a predetermined distance; a receptor binding region on an upper surface of an end portion of the sensing plate; an electric or magnetic field generation device that induces deflection of the sensing plate when a receptor bound to the receptor binding region is selectively bound to an electrically or magnetically active ligand; and a pair of switching electrodes that are separated by a predetermined distance and is connected when the sensing plate contacts the substrate due to the deflection of the sensing plate. A target material need not be labelled, a signal processing of a fluorescent or electrical detection signal using an analysis apparatus is not required, and a signal can be directly decoded by confirming whether a current flows through the switch.

Sensing switch and detecting method using the same

Provided is a method of detecting the presence of a target bio-molecule or a concentration of the bio-molecule using a field effect transistor. The method includes: contacting a first sample having a first target bio-molecule with a reference electrode of a field effect transistor; measuring a first electric signal change of the field effect transistor; contacting a second sample with a sensing surface of the same field effect transistor; measuring a second electric signal change of the field effect transistor; and comparing the first electric signal with the second electric signal.

Method of detecting bio-molecules using the same field effect transistor on the gate sensing surface

A method for simultaneously detecting a size and concentration of ionic materials includes measuring voltage drop values of at least three ionic materials of which sizes and concentrations are known using each of at least two FET-based sensors having different electrical characteristics, determining at least three points in a three-dimensional plot from the known sizes, concentrations and the measured voltage drop values, approximating the at least three points into a single plane, measuring a voltage drop value of an ionic material of which size and concentration are unknown using the at least two FET-based sensors, determining equipotential lines existing on the plane using the voltage drop value of the unknown ionic material and determining a cross point between each of the equipotential lines.

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Seoul, South Korea

Kyu-tae Yoo