Abstract:
Provided is a method of fabricating a magnetic axis-controlled structure. The method of fabricating a magnetic axis-controlled structure includes providing a composition including magnetic nanoparticles dispersed in a liquid medium, applying a magnetic field to the composition to align the magnetic nanoparticles along the magnetic field and form a magnetic axis, and solidifying the liquid medium to fix the magnetic axis.
Abstract:
Provided is a method of mass-producing high-purity nucleotides including providing a sequencing substrate having a clonal library of oligonucleotides on a solid support, sequencing the clonal library, obtaining measured location data of the solid support on the sequencing substrate, mapping pixel data of a signal generated from the solid support given as a result of the sequencing with the measured location data, extracting the solid support having a desired base sequence from the sequencing substrate using the mapping result, and amplifying an oligonucleotide on the extracted solid support to replicate on a large scale.
Abstract:
An optofluidic lithography system including a membrane, a microfluidic channel, and a pneumatic chamber is provided. The membrane may be positioned between a pneumatic chamber and a microfluidic channel. The microfluidic channel may have a height corresponding to a displacement of the membrane and have a fluid flowing therein, the fluid being cured by light irradiated from the bottom to form a microstructure. The pneumatic chamber may induce the displacement of the membrane depending on an internal atmospheric pressure thereof.
Abstract:
Provided is a light emitting diode (hereinafter, referred to as an LED) coating method, and more particularly, an LED coating method that can be used to coat a phosphor, a molding, etc., on an LED.The LED coating method includes (a) preparing a substrate and a plurality of LEDs arranged on the substrate; (b) applying a photoresist onto the substrate and the plurality of LEDs; and (c) selectively exposing the photoresist to light to form a first coating on surfaces of the plurality of LEDs. Here, the first coating is formed by curing the photoresist.
Abstract:
Provided is a method of forming a microsphere having a structural color, which includes providing a composition for generating a structural color including a curable material and magnetic nanoparticles dispersed in the curable material, forming an emulsion by adding the composition for generating a structural color to an immiscible solvent, arranging the magnetic nanoparticles located in the emulsion droplet of the curable material in a one-dimensional chain structure by applying a magnetic field to the emulsion, and fixing the chain structure by curing the emulsion droplet.
Abstract:
Provided is a composite film used for a light emitting apparatus including a light emitting device. The composite film includes a fluorescent layer including phosphors and an optical plate disposed on the fluorescent layer, and diffusing, reducing or mixing at least one of light emitted by the light emitting device, light emitted by the phosphors and a combination thereof.
Abstract:
A light emitting device is provided. The light emitting device includes a p-type semiconductor, an n-type semiconductor, a semiconductor film connected between the p-type semiconductor and the n-type semiconductor, a first electrode disposed on the semiconductor film and configured to apply an electric field to the semiconductor film, and a second electrode disposed under the semiconductor film and configured to apply an additional electric field to the semiconductor film.
Abstract:
Provided is a light emitting diode (hereinafter, referred to as an LED) coating method, and more particularly, an LED coating method that can be used to coat a phosphor, a molding, etc., on an LED.The LED coating method includes (a) preparing a substrate and a plurality of LEDs arranged on the substrate; (b) applying a photoresist onto the substrate and the plurality of LEDs; and (c) selectively exposing the photoresist to light to form a first coating on surfaces of the plurality of LEDs. Here, the first coating is formed by curing the photoresist.
Abstract:
A method includes aligning nanotubes in a microfluidic channel including supplying nanotubes to the microfluidic channel; forming at least one interface in the channel; and applying a pressure to the microfluidic channel to control orientation of the nanotubes. A microfluidic device includes a silicon chip having a outer surface further including an upper surface and a lower surface; an upper wafer attached to the upper surface of the silicon chip; and a lower wafer attached to the lower surface of the silicon chip; wherein: the silicon chip, upper wafer, and lower wafer form a microfluidic channel; one or more nanotubes are aligned on the silicon chip according to the method; and the outer surface includes probe molecules.
Abstract:
The disclosed methods and apparatus concern Raman spectroscopy using metal coated nanocrystalline porous silicon substrates. Porous silicon substrates may be formed by anodic etching in dilute hydrofluoric acid. A thin coating of a Raman active metal, such as gold or silver, may be coated onto the porous silicon by cathodic electromigration or any known technique. In certain alternatives, the metal coated porous silicon substrate comprises a plasma-oxidized, dip and decomposed porous silicon substrate. The metal-coated substrate provides an extensive, metal rich environment for SERS, SERRS, hyper-Raman and/or CARS Raman spectroscopy. In certain alternatives, metal nanoparticles may be added to the metal-coated substrate to further enhance the Raman signals. Raman spectroscopy may be used to detect, identify and/or quantify a wide variety of analytes, using the disclosed methods and apparatus. In some disclosed methods, Raman spectroscopy may be used to detect nucleotides, purines or pyrimidines at the single molecule level.