Abstract:
본 발명은 전기적 특성이 우수한 나노선을 이용하면서 하나의 나노선과 다른 하나의 나노선 사이의 기판 표면에 검출하고자 하는 목표 물질인 글루타메이트, 특히 식품첨가물인 L-글루타민산나트륨에 대한 리셉터를 고정화함으로써 L-글루타민산나트륨의 검출 민감성을 증가시킨 바이오센서 및 이의 제조 방법에 관한 것이다. 본 발명에 따른 글루타메이트 검출용 바이오센서는 나노선이 선택적으로 고체 표면에 행렬로 정렬된 배열로 제조될 수 있다. 이러한 바이오센서는 크기를 매우 작게 만들 수 있으며 나노선의 전기적 특성 저하를 막을 수 있으므로, 소량의 L-글루타민산나트륨 만으로도 매우 민감하게 글루타메이트를 검출할 수 있어, 가공 식품에 존재하는 식품첨가물을 검출하는 휴대용 바이오센서로 효과적으로 사용될 수 있다. 나노선, 탄소나노튜브, 바이오센서, L-글루타민산나트륨, 글루타메이트
Abstract:
A biosensor is provided to prevent the degradation of electrical characteristics of nano wire and sensitively detect glutamate even through a small amount thereof is contained in a food, thereby being able to effectively be used in detecting food additives existing in processed foods. A biosensor for detecting glutamate comprises a solid substrate; at least one signal transducer which is arranged in a matrix and has nano wires of which both ends are adhered to electrodes; and at least one signal sensing part which is disposed between the nano wires on a surface of the solid substrate and to which glutamate oxidase to be bound to glutamate is adhered, wherein the glutamate is monosodium glutamate and L-glutamate, the solid substrate is a silicon substrate or a glass substrate and the nano wire is at least one selected from the group consisting of a carbon nanotube, a silicon nano line, a zinc oxide nano wire and a vanadium oxide nano wire. A method for preparing a biosensor for detecting glutamate comprises the steps of: (a) integrating nano wires on a surface of a solid substrate; (b) coating electrodes with a polymer after forming the electrodes at both ends of each of the nano wires; (c) adhering functional groups between the nano wires which are on the surface of the solid substrate; (d) adhering glutaraldehyde to the functional groups on the surface of the solid substrate; and (e) immobilizing glutamate oxidase which is able to be bound to monosodium glutamate and catalyze the oxidative reaction of glutamate to glutaraldehyde.
Abstract:
PURPOSE: A method for improving dispersibility of a nanostructure and a method for selectively adsorbing the dispersed nanostructure on a solid are provided to arrange nanostructures with improved dispersibility at the desired area of a solid and to adsorb them on the area. CONSTITUTION: A method for selectively adsorbing a nanostructure on a solid comprises the following steps of: adsorbing a functional molecule on the surface of a nanostructure; and dispersing the nanostructure with the functional molecule adsorbed thereon in a solvent and obtaining a nanostructure-containing solution. If the functional molecule is a hydrophilic molecule, the solvent is a hydrophilic solvent. If the functional molecule is a hydrophobic molecule, the solvent is a hydrophobic solvent.
Abstract:
본 발명은 나노 구조체의 배치 방법 및 이를 이용한 나노 소자의 제조 방법에 관한 것으로서, 본 발명의 나노 구조체의 배치 방법은, 소정 방향으로 나노 구조체를 배치하는 방법에 있어서, 기판상에 상기 소정 방향의 면을 갖는 희생 구조물을 형성하는 단계; 적어도 상기 희생 구조물의 상기 소정 방향의 면 상에 상기 나노 구조체를 형성하는 단계; 및 상기 희생 구조물을 제거하는 단계를 포함하고, 상술한 본 발명에 의한 나노 구조체의 배치 방법 및 이를 이용한 나노 소자의 제조 방법은, 희생 구조물을 이용하여 원하는 방향으로 나노 구조체를 배치함으로써 종래 기술에 비하여 공정을 용이하게 할 수 있다. 나노 구조체, 나노 튜브, 나노 와이어, 나노 소자, 희생 구조물
Abstract:
A method for forming an ink, and a patterning method by using the ink forming method are provided to improve resolution and to obtain a pattern having a thickness of nanometer scale. An ink is formed by using a solid part(110) acting as a reservoir; and a thin mobile layer(120) acting as a ink molecule from the bulk part of the inside of the solid part, wherein the molecule of the mobile layer becomes a surface fluid so as to be diffused by the melting of the ink molecule. Preferably the ink molecule has a melting point higher than or equal to the environment temperature. Preferably the ink molecule is a hydrophilic molecule, and the diffusion of the ink molecule is increased by adding impurities particles to the ink molecule.
Abstract:
A biosensor is provided to be employed for detecting specific protein, diagnosing cancer, measuring blood sugar, detecting harm virus and scanning environmental toxic materials and exhibit excellent electrical properties and high detection sensitivity. A biosensor comprises a solid substrate such as a silicon substrate and a glass substrate; at least one signal transducer which is arranged in a matrix and has nano wires to which electrodes are adhered; and at least one signal sensing part which is disposed in the vicinity of the nano wires. A receptor to be bound to a target material is adhered to the signal sensing part and is selected from the group consisting of enzyme-substrate, ligand, amino acid, peptide, protein, nucleic acid, lipid and carbohydrate, wherein the target material is at least one selected from the group consisting of a protein, a nucleic acid, oligosaccharide, an amino acid, a carbohydrate, a solute gas, a sulfur oxide gas, a nitrogen oxide gas, residual agricultural chemicals, a heavy metal and an environmental toxic material and the nano wire is at least one selected from the group consisting of a carbon nanotube, a silicon nano wire, a zinc oxide nano wire and a vanadium oxide nano wire. A method for manufacturing a biosensor comprising the steps of: (a) integrating nano wires on a surface of a solid substrate; (b) coating electrodes with a polymer after forming the electrodes at both ends of each of the nano wires; (c) adhering functional groups on the surface of the solid substrate between the nano wires; and (d) immobilizing a receptor through the functional groups which catalyzes or is bound to a target substance. A nano platform comprises at least one biosensor.
Abstract:
본 발명은 고체표면에 나노구조를 선택적으로 정렬하는 방법에 관한 것으로서, 보다 상세하게는 고체 표면을 미끄러운 분자막으로 패터닝한 후, 흡착시키고자 하는 나노구조가 미끄러운 분자막에서 고체표면으로 슬라이딩되면서, 고체표면에 직접 흡착되는 방법에 관한 것이다. 본 발명에 의하면, 나노구조를 고체 표면에 선택적으로 위치 및 정렬시킬 수 있다. 또한 나노구조가 고체 표면에 직접 접촉하므로, 나노구조 및 고체 표면의 오염을 방지할 수 있다. 그리고 본 발명에 의한 다중 나노구조를 만들어 센서 등으로 활용할 수 있다. 나아가 DNA, 단백질, 셀 등의 바이오 구조를 원하는 모양으로 배양할 수 있다. 나노구조, 미끄러운 분자막, 슬라이딩, 선택적 정렬, 패터닝
Abstract:
반도체 소자와 그의 제조 및 동작방법에 관해 개시되어 있다. 개시된 반도체 소자는 서로 다른 나노구조체들을 포함할 수 있다. 예컨대, 상기 반도체 소자는 나노와이어(nanowire)로 형성된 제1구성요소와 나노파티클(nanoparticle)로 형성된 제2구성요소를 포함할 수 있다. 여기서, 상기 나노와이어는 양극성(ambipolar)의 탄소나노튜브(carbon nanotube)일 수 있다. 상기 제1구성요소는 채널층일 수 있고, 제2구성요소는 전하트랩층일 수 있는데, 이 경우, 상기 반도체 소자는 트랜지스터나 메모리 소자일 수 있다.
Abstract:
PURPOSE: An adsorption method of a nanostructure and an absorbate using a solid thin film mask is provided to evaporate the nanostructure and the absorbate to the tip of a probe microscope without transforming the tip. CONSTITUTION: An adsorption method of a nanostructure and an absorbate using a solid thin film mask comprises the following steps: evaporating the thin solid film mask(100) on the entire surface of a probe microscope tip(T)(a); rubbing the end of the tip to the solid surface to remove only the thin solid film mask(b); evaporating a linker molecular-film(30) on the entire surface of the tip(c); dipping the probe microscope tip into a nanostructure solution(d); and removing the thin solid film mask(e).
Abstract:
PURPOSE: A method for improving dispersibility of a nanostructure and a method for selectively adsorbing the dispersed nanostructure on a solid are provided to arrange nanostructures with improved dispersibility at the desired area of a solid and to adsorb them on the area. CONSTITUTION: A method for selectively adsorbing a nanostructure on a solid comprises the following steps of: adsorbing a functional molecule on the surface of a nanostructure; and dispersing the nanostructure with the functional molecule adsorbed thereon in a solvent and obtaining a nanostructure-containing solution. If the functional molecule is a hydrophilic molecule, the solvent is a hydrophilic solvent. If the functional molecule is a hydrophobic molecule, the solvent is a hydrophobic solvent.