Electronics and Telecommunications Research Institute

Jin Hwa Ryu

Kang Bok Lee

Hyunseok Kim

Hoe-Sung Yang

Kwang-Soo Cho

Soocheol Kim

Han Young Yu

Kyu Won Han

Sang Gi Hong

So Yung Park

Sun-Hwa Lim

Bong Kuk Lee

JeongKyun Kim

The disclosure relates to a non-dispersive infrared (NDIR) gas sensor which detects the concentration of gas with a simple structure and method by manufacturing an optical waveguide with a gas-permeable polymer material instead of a conventional cavity or chamber type. An optical signal travels through the optical waveguide of gas-permeable polymer by total internal reflection, and the gas naturally penetrates the optical waveguide without the use of separate inlet and outlet openings, so that the optical signal and gas particles come into contact with each other within the optical waveguide. Since the optical signal detected by a photodetector at the other end of the optical waveguide after traveling while contacting the gas particles has properties changed according to the concentration of the gas which they have contacted in the optical waveguide, it is possible to measure the concentration of a specific gas from the detected optical signal.

Non-dispersive infrared gas sensor using gas-permeable polymer optical waveguide and manufacturing method

The present invention relates to a biosensor technique in which multiple types of target substances (biomarkers) contained in saliva or the like are allowed to be simultaneously measured or N samples for one target substance (biomarker) are allowed to be simultaneously measured and reliability of sensed results and high sensitivity are secured. A fluidic channel-based planar biosensor chip, in which a plurality of fluidic channels capable of measuring target substances (biomarkers) are embedded in one flat plate sensor chip and the flat plate sensor chip is measured by a light-emitting element (optical source) and a light-receiving element, and a biomarker measuring apparatus using the same are provided.

Multi-layered biosensor chip and biomarker measuring apparatus using the same

A surface plasmon resonance imaging apparatus is provided. The surface plasmon resonance imaging apparatus includes a light irradiation unit configured to irradiate polarized light onto a metal coating film provided on one surface of a prism, a light modulator configured to spatially pattern-encode light reflected by the metal coating film and the prism, a light detector configured to detect a pattern-encoded light signal, obtained through pattern-encoding by the light modulator, as a spectral signal, a signal processor configured to spatially decode the spectral signal and analyze a decoded spectral signal to generate characteristic data of a sample provided on the metal coating film, and an output unit configured to output the characteristic data of the sample as a two-dimensional (2D) image.

Surface plasmon resonance imaging apparatus and method

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Daejeon, South Korea

Jin Hwa Ryu