Abstract:
A microfluidic control device is provided to perform the minute control of fluid sample by bond of natural flow and forced flow, entire change or strong washing. A microfluidic control device(100) comprises a first substrate and a second substrate. The first substrate comprises sensing electrode(212), heaters and temperature sensors. The second substrate has fluid inlet(112), fluid inlet chamber unit(114), flow path unit(116), reaction chamber unit(118), valve unit, pump unit, and waste water chamber unite(130). The reaction chamber unit corresponds to the sensing electrode. The valve unit corresponds to one of heaters and temperature sensors. A method for operating the microfluidic control device comprises: a step of injecting fluid sample; a step of transferring the fluid sample to the sensing electrode; a step of stopping the flow of fluid sample; and a step of discarding the fluid sample.
Abstract:
An ultrasonic welding-based microfluidic device and a manufacturing method thereof are provided to prevent generation of an irregular surface on a channel side while a welding line melts with ultrasonic welding. An ultrasonic welding-based microfluidic device includes a lower plate(110), an upper plate(120), and a channel(113). The lower plate has two melting prevention protrusions(111) formed into constant height and intervals. The upper plate has two welding lines(121). The welding line is formed with intervals wider than the intervals of the melting prevention protrusion. The welding line is welded with the lower plate, and located on an outer side of the melting prevention protrusion. The channel is formed between two melting prevention protrusions.
Abstract:
Titanium dioxide nanoparticles and a method for immobilizing a bio-material to the titanium dioxide are provided to enlarge an optical thickness change value generated in an antibody-antigen reaction by a resonance reflection light biosensor. Titanium dioxide nanoparticles comprise: titanium dioxide whose surface has hydroxyl groups; an aldehyde group layer introduced on the hydroxyl groups of the titanium dioxide by self-assembly; and a bio-material immobilized on the aldehyde group layer. The titanium dioxide reacts to the piranha solution to form the hydroxyl groups. The aldehyde group layer is formed by a reaction between the titanium dioxide and an aldehyde silane solution.
Abstract:
A wavelength tunable semiconductor laser apparatus is provided to change an output wavelength of the semiconductor laser diode by heating the semiconductor laser diode through one or plural heating elements around the semiconductor laser diode. A wavelength variable semiconductor laser apparatus includes a laser diode(203), a first power supply(201), a heating element(202), and a second power supply(204). The semiconductor laser diode emits the light. The power supply supplies the current to the heating element. One or more heating elements are arranged on the same substrate as the semiconductor laser diode as the heating source. The second power supply supplies the current to the semiconductor laser diode.
Abstract:
A gas detection apparatus and method are provided to detect marker gas of lung cancer and to thereby discover lung cancer at its early stage. A gas detection method comprises a step of collecting respiratory gas of a subject(S102), a step of removing the foreign material from the collected respiratory gas(S120), a step of removing the moisture from the respiratory gas from which the foreign material is removed(S130), and a step of detecting the specific components included in the moisture-removed gas(S160). The moisture removal step includes condensing the respiratory gas and removing the remaining moisture from the condensed respiratory gas.
Abstract:
A power generating device array and system, and method for manufacturing the same are provided to generate electricity of broadband frequency and transfer it to a ubiquitous sensor network. The electricity generating element array(100) comprises a substrate(90) and electricity generating elements(100a, 100b, 100c, 100d, 100e, 100f, 100g, 100h). The electricity generating element is arranged in the top of the substrate as the array shape. The electricity generating elements are the electricity of the different frequencies generated by piezoelectricity. One end of electricity generating elements moves freely and the other end is fixed to the substrate. One end of electricity generating elements has the inertial mass. The electricity generating system comprises electricity generating element array and an electric apparatus. The electric apparatus uses the electricity of the electricity generating element array.
Abstract:
A semi-quantitative immunological detection device using differential antibodies or substrates is provided to distinguish with the naked eyes and provide the result based on the result of quantitative detector by semi-qualitatively showing the concentration of test sample. A semi-quantitative immunological detection apparatus using differential antibodies comprises: a sample injection port(10) which supplies sample; and a reaction part(20) which reacts in different sensitivity to each test sample and a plurality of reaction materials(21, 22, 23) is arranged in the same space. A plurality of reaction materials is a plurality of antibodies having different adherence degree. A plurality of reaction materials is a plurality of antibodies which has same adherence degree but is fixed and arranged in each different amount. The detection apparatus further comprises a sample application part(30). The sample application portion is implemented with a filter or a microchannel.
Abstract:
A detection kit of target bio material is provided to make the movement of peak position on the reflection/transmission spectrum enlarge and accurately measure with a small amount of sample. A kit for detecting a target bio material comprises: a grating layer on a substrate, a resonance reflection light filter; and a nanocomposite containing nanoparticle and linker. A method for detecting the target bio material comprises; a step of providing the resonance reflection light filter; a step of contacting a trapping layer of resonance reflection light filter with sample containing target bio material; and a step of contacting the nanocomposite containing a nanoparticle and linker with the target bio material.
Abstract:
A silicon biosensor for detecting a bio material is provided to easily integrate with a silicon element without separate light source and optical system. A silicon biosensor comprises a light source(110); a light detector(120) which generates light current; and a light fiber(140) which transfer light from the light source to the light detector. The light source comprises a hole doping layer(111) which is formed on the surface of upper side of the silicon substrate; a light emitting layer(112) which is formed on the surface of upper side of the hole doping layer; and electron doping layer(113) which is formed on the surface of upper side of the light emitting layer. The light detector comprises a hole doping layer(121); a thin film layer(122); and an electron doping layer(123).
Abstract:
An apparatus for supporting taking medicine includes a medicine storage unit which has a plurality of medicine storage holes to store therein medicines to be taken by a user, a sensor controller which determines whether the medicine storage holes include medicines therein, and a medicine taking service unit which receives a preset schedule by synchronizing with a personal computer, checks whether a user has taken medicine according to a determination of the sensor controller and informs a user to take a medicine according to the preset schedule. Thus, users who should take various medicines on a regular basis for daily life may observe the medicine taking time.