摘要:
The present invention provides a method for production of a single electron semiconductor element (SET) in which a quantum dot is selectively arranged in a nano gap between fine electrodes, whereby the product yield is significantly improved, leading to excellent practical applicability. The method for production of SET of the present invention is characterized in that a solution containing ferritin including a metal or semiconductor particle therein, and a nonionic surfactant is dropped on a substrate having a source electrode and a drain electrode formed by laminating a titanium film and a film of a metal other than titanium, whereby the ferritin is selectively arranged in a nano gap between the source electrode/drain electrode. In the method for production of SET of the present invention, the metal or semiconductor particle can be fixed as a quantum dot at a suitable position in the nano gap between the source electrode/drain electrode following decomposition of ferritin, and in addition, formation of unnecessary quantum dot can be suppressed.
摘要:
The present invention provides a method for production of a single electron semiconductor element (SET) in which a quantum dot is selectively arranged in a nano gap between fine electrodes, whereby the product yield is significantly improved, leading to excellent practical applicability. The method for production of SET of the present invention is characterized in that a solution containing ferritin including a metal or semiconductor particle therein, and a nonionic surfactant is dropped on a substrate having a source electrode and a drain electrode formed by laminating a titanium film and a film of a metal other than titanium, whereby the ferritin is selectively arranged in a nano gap between the source electrode/drain electrode.
摘要:
An object of the present invention is to provide a method of forming fine particles on a substrate in which reoxidization of reduced fine particles is suppressed. Reduced fine particles (FeO fine particles) are formed by embedding metal oxide fine particles (Fe2O3 fine particles) fixed on a p type silicon semiconductor substrate into a silicon oxidized film, and carrying out a heat treatment in a reducing gas atmosphere. Presence of the silicon oxidized film enables suppression of reoxidization of the reduced fine particles (FeO fine particles) due to exposure to the ambient air.
摘要翻译:本发明的目的是提供一种在抑制还原的微粒的再氧化的基板上形成微粒的方法。 通过将固定在p型硅半导体衬底上的金属氧化物微粒(Fe 2 O 3 O 3微粒)嵌入到硅氧化膜中而形成还原的微粒(FeO微粒) ,并在还原气体气氛中进行热处理。 硅氧化膜的存在能够抑制由于暴露于环境空气而导致的还原的微粒(FeO微粒)的再氧化。
摘要:
An object of the present invention is to provide a method of forming fine particles on a substrate in which reoxidization of reduced fine particles is suppressed. Reduced fine particles (FeO fine particles) are formed by embedding metal oxide fine particles (Fe2O3 fine particles) fixed on a p type silicon semiconductor substrate into a silicon oxidized film, and carrying out a heat treatment in a reducing gas atmosphere. Presence of the silicon oxidized film enables suppression of reoxidization of the reduced fine particles (FeO fine particles) due to exposure to the ambient air.
摘要翻译:本发明的目的是提供一种在抑制还原的微粒的再氧化的基板上形成微粒的方法。 通过将固定在p型硅半导体衬底上的金属氧化物微粒(Fe 2 O 3 O 3微粒)嵌入到硅氧化膜中而形成还原的微粒(FeO微粒) ,并在还原气体气氛中进行热处理。 硅氧化膜的存在能够抑制由于暴露于环境空气而导致的还原的微粒(FeO微粒)的再氧化。
摘要:
Provided is a method for detecting an antigen without use of a labeled-antibody. A support having an antibody and a multi-copper oxidase CueO immobilized thereon is brought into contact with a first buffer solution containing the antigen, a current is measured by a potentiostat method using the support and a second buffer solution, and when the measured current is greater than or equal to 1.5×(blank value), it is determined that the antigen exists. The second buffer solution contains a substrate of the CueO and has an ionic strength falling within a range of not less than 0.3 mM and not more than 1.0 mM.
摘要:
The present invention relates to a method for detecting an antigen with use of an antibody and an enzyme. Specifically, the present invention provides a method for detecting an antigen without use of a labeled-antibody. the method comprises immersing particles in a first buffer solution which is predicted to contain the antigen; wherein an antibody and a multi-copper oxidase CueO are immobilized on each surface of the particles, and the antibody reacts specifically with the antigen. The method further comprises the following steps recovering the obtained particles; mixing the particles recovered, an oxidation-reduction indicator (reductant), and a second buffer solution so as to prepare a reaction solution; measuring an activity degree of the multi-copper oxidase CueO contained in the reaction solution; determining that the first buffer solution contains the antigen based on the above activity degree.
摘要:
Provided is a method for detecting an antigen without use of a labeled-antibody. A support having an antibody and a multi-copper oxidase CueO immobilized thereon is brought into contact with a first buffer solution containing the antigen, a current is measured by a potentiostat method using the support and a second buffer solution, and when the measured current is greater than or equal to 1.5×(blank value), it is determined that the antigen exists. The second buffer solution contains a substrate of the CueO and has an ionic strength falling within a range of not less than 0.3 mM and not more than 1.0 mM.
摘要:
The present invention relates to a method for detecting an antigen with use of an antibody and an enzyme. Specifically, the present invention provides a method for detecting an antigen without use of a labeled-antibody. the method comprises immersing particles in a first buffer solution which is predicted to contain the antigen; wherein an antibody and a multi-copper oxidase CueO are immobilized on each surface of the particles, and the antibody reacts specifically with the antigen. The method further comprises the following steps recovering the obtained particles; mixing the particles recovered, an oxidation-reduction indicator (reductant), and a second buffer solution so as to prepare a reaction solution; measuring an activity degree of the multi-copper oxidase CueO contained in the reaction solution; determining that the first buffer solution contains the antigen based on the above activity degree.
摘要:
A novel method for two-dimensionally arraying ferritin on a substrate is provided which obviates the need for a metal ion that permits linking between adjacent two ferritin particles. In a method of two-dimensionally arraying ferritin on a substrate, the surface of the substrate is hydrophilic, and the method includes the steps of: developing a solution containing a solvent and the ferritin on the substrate; and removing the solvent from the solution developed on the substrate, while the ferritin has an amino acid sequence set out in SEQ ID NO: 1 modified at its N-terminus.
摘要翻译:提供了一种用于在基底上二维排列铁蛋白的新方法,其消除了允许在相邻的两个铁蛋白颗粒之间连接的金属离子的需要。 在基板上二维排列铁蛋白的方法中,基板的表面是亲水性的,该方法包括以下步骤:在基板上显影含有溶剂和铁蛋白的溶液; 并从底物上显影的溶液中除去溶剂,而铁蛋白具有在其N末端修饰的SEQ ID NO:1所示的氨基酸序列。
摘要:
The present invention provides a method for producing a magnetoresistive element including a tunnel insulating layer, and a first magnetic layer and a second magnetic layer that are laminated so as to sandwich the tunnel insulating layer, wherein a resistance value varies depending on a relative angle between magnetization directions of the first magnetic layer and the second magnetic layer. The method includes the steps of: (i) laminating a first magnetic layer, a third magnetic layer and an Al layer successively on a substrate; (ii) forming a tunnel insulating layer containing at least one compound selected from the group consisting of an oxide, nitride and oxynitride of Al by performing at least one reaction selected from the group consisting of oxidation, nitriding and oxynitriding of the Al layer; and (iii) forming a laminate including the first magnetic layer, the tunnel insulating layer and a second magnetic layer by laminating the second magnetic layer in such a manner that the tunnel insulating layer is sandwiched by the first magnetic layer and the second magnetic layer. The third magnetic layer has at least one crystal structure selected from the group consisting of a face-centered cubic crystal structure and a face-centered tetragonal crystal structure and is (111) oriented parallel to a film plane of the third magnetic layer. According to this production method, it is possible to produce a magnetoresistive element with excellent properties and thermal stability.