Abstract:
PURPOSE: A producing method of a fluorescent polymer nanoparticle with the photo-stability is provided to offer hydrophobic fluorescent organic molecules to the nanoparticle. CONSTITUTION: A producing method of a fluorescent polymer nanoparticle with the photo-stability comprises the following steps: dissolving fluorescent organic polymers in a monomer, and obtaining the fluorescent polymer nanoparticle through the emulsion polymerization; surface-processing the surface of the fluorescent polymer nanoparticle using a surfactant; and coating the surface of the fluorescent polymer nanoparticle with silica. The monomer is selected from styrene, methyl methacrylate, methyl acrylate, ethyl acrylate, ethyl methacrylate, vinyl acetate, or acrylic acid.
Abstract:
PURPOSE: A producing method of a titanium oxide nanostructure is provided to grow the titanium oxide nanostructure with the excellent electric conductivity on a transparent electrode substrate. CONSTITUTION: A producing method of a titanium oxide nanostructure comprises the following steps: synthesizing a titanium oxide precursor; coating a substrate with the titanium oxide precursor for forming a thin film layer(S150); and etching the thin film layer for producing the titanium oxide nanostructure on the substrate. The titanium oxide precursor is synthesized by a step of dissolving titanium oxide into alcohol before mixing with amine(S110), a step of heating and stirring the mixture while injecting inert gas into the mixture(S120), and a step of secondly stirring and heating the mixture(S130).
Abstract:
PURPOSE: A magnetic bead sensing array device of cross form which is useful as a magnetic biosensor is provided to measure output voltage of vertical direction and to manufacture magnetic biosensor of high density and high sensitivity. CONSTITUTION: A magnetic bead sensing array device of cross form comprises: a substrate(1); plural magnetic resistance devices(20) of cross form which is formed using thin film for detecting bio molecules; an electrode pad(26a, 26b, 26c) which is connected with plural magnetic devices and is formed on the substrate; a bio molecule fixing layer(33) for fixing bio molecules; a protection layer(30) formed on the upper portion of the magnetic resistance device and electrode pad; and a magnetic bead container layer(34) which surrounds the bio molecule fixing layer. The magnetic bead container layer is formed using photosensitive thin film.
Abstract:
A detection method of signal of multiple biomolecules is provided to obtain the effects of test sample safety, high reliability of data and signal amplification of sample having minute amount using a photodegradable oligomer. A method for detecting a signal of multiple biomolecule comprises: a step of catching a target biomolecule as a probe in a sample; a step of binding photodegradable oligomer for detecting target biomolecule and nano particle with target biomolecule; and a step of lysing the binding site between nano particle and photodegradable oligomer and detecting the signal to the oligomer; The photodegradable oligomer is different from each other in the length and sequence with the target biomolecule.
Abstract:
본 발명은 블록 공중합체의 자기조립체 제조방법 및 크로머포어가 나노 캡슐화(nano-encapsulation)된 블록 공중합체의 자기조립체에 관한 것이다. 본 발명의 크로머포어가 나노 캡슐화된 블록 공중합체의 자기조립체는, 제1 단량체로 이루어진 고분자 사슬 블록과 친용매성의 제2 단량체로 이루어진 고분자 사슬 블록이 서로 연결된 구조를 갖는 복수개의 블록 공중합체로 이루어지되, 상기 친용매성 고분자 사슬 블록은 쉘에 위치하고, 다른 고분자 사슬 블록은 코아에 위치하며, 상기 코아에 크로머포어가 존재하는 형태의 코아-쉘 구조의 입자로 이루어진다. 본 발명의 크로머포어가 나노 캡슐화된 블록 공중합체의 자기조립체는 상분리가 일어나지 않으면서 흡수 효율이 높다.
Abstract:
PURPOSE: A method for preparing polymer nanoparticle is provided, wherein the nanoparticle comprises a two-photon absorbing compound in the center and has a variable size controlled depending on the composition. CONSTITUTION: The method comprises the steps of dispersing a monomer for formation of polymer nanoparticle and a two-photon absorbing compound in a solvent; supplying a certain air to the solution to remove the dissolved oxygen contained in the solvent with stirring the solution and maintaining the temperature to be constant; supplying a polymerization initiator to the solution with stirring it and maintaining the temperature to be constant; and polymerizing the monomer with stirring the solution and maintaining the temperature to be constant. Preferably a surfactant is further dispersed in the solvent. Preferably the solvent is water or an alcohol; and the monomer is at least two monomers having different polarity.
Abstract:
PURPOSE: A laser molecular beam epitaxy(MBE) apparatus is provided in which an ion beam generator is set to easily control supply of active oxygen when a metal oxide is fabricated and an ion beam formed from various gases is irradiated on the surface of the metal oxide to change composition and structure thereof. CONSTITUTION: A laser MBE apparatus has a pressure gauge(12) and an external vacuum pump(11) and vaporizes a metal oxide target(1) with a high-power pulse laser beam at a low pressure to deposit a metal oxide on a substrate(2) heated by a heater(3). The laser MBE apparatus includes a gas flow rate adjustment controller(6) for receiving an electrical signal from the pressure gauge to control gas flow rates, a gas flow rate controller(7) for supplying gases such that the laser MBE apparatus has a desired inner vacuum degree when the metal oxide is deposited, an ion beam generation controller(5) attached to the outside of the MBE apparatus to control the speed of an ion beam, and an ion beam generator(4) set inside the MBE apparatus to ionize the gases inserted from the gas flow rate controller, generating the ion beam.
Abstract:
PURPOSE: An optical information storing and searching method by using an optical information storing medium and photon absorption according to the luminescence of semiconductor crystal and a device thereof are provided to restrain the storage and search of optical information to a predetermined position three dimensionally, and simplify the multi-layer search and the luminescent wavelength control. CONSTITUTION: An optical information storing and searching device by using an optical information storing medium and photon absorption according to the luminescence of semiconductor crystal includes a first light source generating and luminescence detecting part(20c) having a first laser generating part(21), a first focusing element(22) positioned at a lower part of the first laser generating part for focusing the laser emitted from the first laser generating part to an optical information recording medium, an optical separation element(26) positioned between the first laser generating part and the focusing part for separating a laser beam from a luminescent beam, and a light detecting part(27) for detecting the luminescent beam, and an optical information medium supporting element positioned below the first light source generating and luminescence detecting part, wherein the optical information medium is formed by repeatedly stacking transparent thin films(11) distributed with semiconductor and transparent interval layers(12).
Abstract:
본 발명은 고분자-유기물 다층 박막 전기 발광 소자에 관한 것이다. 최근에는 발광 효율의 향상을 위하여 고분자 블랜드를 이용하거나, 정공이나 전자 수송층을 이용한 다층 박막 소자에 대한 연구가 활발히 진행되고 있다. 한편 소자의 안정성과 효율의 극대화를 위하여 고분자와 유기물로 구성된 다층 박막 소자에 대한 연구도 많이 이루어지고 있다. 지금까지 보고된 고분자-유기물 다층 박막 소자에서는 고분자나 유기물의 두층 중에서 어느 한층이 발광층으로 작용하고 다른 한 층은 전자나 정공을 수송하는 수송층 역할을 해왔다. 다층 박막 소자를 이용하여 전압이나 전류에 따른 발광 파장 변화를 보고한 논문도 있지만 파장의 변화는 극히 미미하였다. 본 발명에서는 고분자 발광체인 폴리(1,4-페닐렌비닐렌)(PPV)와 폴리(티에닐렌비닐렌)(PTV)의 교대 공중합체인 폴리[2-메톡시-5-(3,7-디메틸)옥틸옥시-1,4-페닐렌비닐렌-알트-2,5-티에닐렌비닐렌](DAPPV-PTV)의 합성 방법과 DAPPV-PTV와 유기물 발광체인 Alq 3 를 이용한 다층 박막 전기 발광 소자를 형성하므로써 가하여준 전압에 따라 상이하게 다른 두가지 색을 발광하는데 약 8V부터 초록색을 18V 이상에서는 적색을 발광한다.