摘要:
Provided are a biochip and a method of detecting a reaction from the biochip. This method includes preparing a first mixture solution of polyvinylpyrrolidone (PVP) and a sample including target molecules, measuring absorbance or transmittance of the first mixture solution, preparing a second mixture solution including the PVP, the sample, and a receptor of the target molecules, measuring absorbance or transmittance of the second mixture solution, and calculating an absorbance or transmittance difference between the first mixture solution and the second mixture solution. Thus, it is possible to reduce the production cost of the biochip by inducing a reaction of an antigen and an antibody using PVP. Further, it is possible to detect an accurate quantity of the antigen by analyzing a quantity of antigen on the basis of the absorbance or transmittance difference.
摘要:
Provided are a gold-silver alloy nanoparticle chip, a method of fabricating the same and a method of detecting microorganisms using the same. The gold-silver alloy nanoparticle chip includes a hydrophilized glass substrate, a self-assembled monolayer formed on the glass substrate, and gold-silver alloy nanoparticles fixed on the self-assembled monolayer. The gold-silver alloy nanoparticle chip having such a structure enables microorganisms in a water purifier and tap water to be readily detected and enables detection efficiency to be enhanced.
摘要:
A photonic biosensor, a photonic biosensor array, and a method of detecting a bio-material using the same are provided. The photonic biosensor includes a light emitting diode configured to emit light, a photodiode (PD), an optical fiber configured to connect the light emitting diode with the PD, and a micro-fluidic channel disposed on the optical fiber. Bio-antibodies or aptamers are fixed to the surface of the optical fiber, and the micro-fluidic channel includes gold (Au) nanoparticles to which bio-antibodies or aptamers are fixed. The photonic biosensor may be configured using absorption of surface plasmons in Au nanoparticles with respect to light traveling through the surface of the optical fiber configured to connect the light emitting diode with the PD, thus simplifying the manufacture of the biosensor and reducing the manufacturing cost.
摘要:
Provided is a microfluidic injection device and a method for injecting microfluidic. The microfluidic injection device includes a fluid injection chamber, a gas generation chamber applying pressure to the fluid injection chamber, and a channel connecting the fluid injection chamber to the gas generation chamber.
摘要:
Provided is a microfluidic injection device and a method for injecting microfluidic. The microfluidic injection device includes a fluid injection chamber, a gas generation chamber applying pressure to the fluid injection chamber, and a channel connecting the fluid injection chamber to the gas generation chamber.
摘要:
Provided are an apparatus and method for detecting biomaterials. The apparatus for detecting the biomaterials includes a light source unit, a biomaterial reacting unit, and a detection unit detecting. The light source unit provides incident light. The biomaterial reacting unit includes a substrate and metal nanoparticles spaced from the substrate. The surface plasmon resonance phenomenon is induced on surfaces of the metal nanoparticles by the incident light. First detecting molecules specifically binding to target molecules are immobilized to the surfaces of the metal nanoparticles. The detection unit detects a resonance wavelength of emission light emitted from the metal nanoparticles by the surface plasmon resonance phenomenon.
摘要:
A cartridge for measuring a biological sample component and an apparatus for measuring a biological sample component are provided. The cartridge for measuring a biological sample component includes: an upper cartridge having a first chamber storing a biological sample, a first channel connected to the first chamber and delivering air pressure to the first chamber, and a third channel transferring the biological sample; and a lower cartridge having a third chamber storing a first reagent, a fifth chamber storing a second reagent, a fifth channel connecting the third and fifth chambers and transferring the second reagent to the third chamber, an eleventh channel delivering the biological sample delivered through the third channel to the third chamber, and a thirteenth channel delivering air pressure to the fifth chamber, wherein when the upper and lower cartridges are bounded by an external force, the third channel and the eleventh channel are connected.
摘要:
A semiconductor laser apparatus is provided which can vary an output wavelength of a light source. A semiconductor laser diode and one or more heat source devices arranged around the semiconductor laser diode are integrated on one substrate. The semiconductor laser diode is configured to be uniformly heated by the heat source device. An output wavelength of the semiconductor laser diode can be easily and quickly varied.
摘要:
There are provided an apparatus for fixing a plastic sheet which fixes a plastic sheet to fabricate a nano pattern and a method of fabricating a nano pattern on a plastic sheet using the same. The apparatus for fixing a plastic sheet includes: a pair of planar metal guide rings interposingly fixing a plastic sheet from above and below, respectively; and a sheet fixing chuck including: a ring fixer sucking the pair of planar metal guide rings through a vacuum groove to be fixed thereto; and a sheet fixer having a plurality of vacuum pin holes formed therein, the vacuum pin holes sucking a bottom of the plastic sheet fixed by the planar metal guide rings. The apparatus allows fabrication of the nano pattern on the plastic sheet having less roughness than that of a semiconductor substrate or a glass substrate.
摘要:
There is provided a method for immobilizing a bio-material on a surface of titanium dioxide nanoparticles (TiO2) as a highly reflective material to enhance sensitivity of a resonant reflection biosensor. The method for immobilizing a bio-material may be useful to easily immobilize bio-materials such as proteins, DNA, RNA and enzymes on surfaces of titanium dioxide (TiO2) nanoparticles using the chemical reaction, and significantly improve sensitivity of a resonant reflection biosensor by determining the antigen-antibody reaction in the resonant reflection biosensor using the immobilized secondary antien.