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    • 1. 发明专利
    • METHOD FOR PRODUCING COMPOSITE NANOPARTICLE HAVING FePt CORE/Fe SHELL STRUCTURE
    • 用于生产具有FePt核/ Fe壳结构的复合纳米颗粒的方法
    • JP2008248364A
    • 2008-10-16
    • JP2007094700
    • 2007-03-30
    • Kyoto UnivToyota Central R&D Labs IncToyota Motor Corpトヨタ自動車株式会社国立大学法人京都大学株式会社豊田中央研究所
    • YAMAMOTO SHINPEISATO TAKESHISAKUMA NORITSUGUSHOJI TETSUYAKATO AKIRA
    • B22F1/02B22F1/00B82B3/00
    • PROBLEM TO BE SOLVED: To provide a method for producing composite nanoparticles having an FePt core/Fe shell structure exhibiting excellent characteristics.
      SOLUTION: In the method for producing composite nanoparticles having an FePt core/Fe shell structure where FePt core particles of nanosizes are coated with an Fe shell, a polar solvent is added to a first solution in which FePt core particles previously subjected to heat treatment for forming a crystal structure exhibiting required characteristics are dispersed into a first organic solvent with a first dispersant, thus the first dispersant is peeled away from the FePt core particles, and the FePt core particles are flocculated and recovered, the precursor of a shell is added to a second solution obtained by dispersing the recovered core particles into a second organic solvent with a second dispersant so as to form Fe shell on the surface of the FePt core particles, and the FePt core/Fe shell particles are subjected to heat treatment at a temperature of the boiling point of the second dispersant or above to
    • 要解决的问题:提供一种具有表现出优异特性的FePt核/ Fe壳结构的复合纳米颗粒的制造方法。 解决方案:在具有FePt核/ Fe壳结构的复合纳米颗粒的制备方法中,其中FePt纳米颗粒的核心颗粒被Fe壳涂覆,将极性溶剂加入到先前经受过FePt核心颗粒的第一溶液中 形成具有所需特性的晶体结构的热处理用第一分散剂分散在第一有机溶剂中,因此第一分散剂从FePt芯颗粒上剥离,并且FePt核颗粒被絮凝和回收,壳的前体 加入到通过第二分散剂将回收的芯颗粒分散到第二有机溶剂中以在FePt芯颗粒的表面上形成Fe壳而获得的第二溶液中,并对FePt核/ Fe壳颗粒进行热处理 在还原气氛中在第二分散剂的沸点或高于<400℃的温度下进行。 版权所有(C)2009,JPO&INPIT
    • 4. 发明专利
    • Method of manufacturing core/shell conjugated nanoparticle
    • 制造芯/壳共纳米复合物的方法
    • JP2007118147A
    • 2007-05-17
    • JP2005315132
    • 2005-10-28
    • Kyoto UnivToyota Motor Corpトヨタ自動車株式会社国立大学法人京都大学
    • SHOJI TETSUYANAKAMURA NAOKIKATO AKIRAYAMAMOTO SHINPEITAKANO MIKIOONO TERUO
    • B82B1/00B22F1/02B22F9/00B22F9/24C22C33/02
    • PROBLEM TO BE SOLVED: To provide a method of manufacturing core/shell conjugated nanoparticles exhibiting excellent characteristic by eliminating obstruction against shell forming reaction by a strong adhesive dispersant such as a phase-transfer catalyst in a method of forming a shell on a surface of a core of nanoparticles of specified crystal structure formed by previously heating, while preventing sintering.
      SOLUTION: In this method of manufacturing core/shell conjugated nanoparticles formed by coating core particles in nanosize with a shell, a polar solvent is added to a first solution obtained by dispersing core particles, which is previously heated to have crystal structure for realizing necessary characteristic, in a first organic solvent by a first dispersant to peel the first dispersant from the core particles for elimination and to coagulate the nanoparticles for recovery, and a precursor of the shell is added to a second solution obtained by dispersing the recovered core particles in a second organic solvent by a second dispersant to form the shell on the surface of the core particles.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 待解决的问题:提供一种制造核/壳共轭纳米颗粒的方法,其通过在形成壳的方法中通过强粘合剂分散剂如相转移催化剂消除对壳形成反应的阻碍而显示出优异的特性 通过预先加热形成的特定晶体结构的纳米颗粒的表面,同时防止烧结。 解决方案:在这种通过用壳涂覆纳米尺寸核心颗粒形成的核/壳共轭纳米颗粒的方法中,将极性溶剂加入到通过分散预先加热以具有晶体结构的核心颗粒获得的第一溶液 通过第一分散剂在第一有机溶剂中实现必要的特性,将第一分散剂从芯颗粒中剥离,以消除并使纳米颗粒凝结以进行回收,并将壳的前体加入通过分散回收的芯获得的第二溶液 颗粒在第二有机溶剂中通过第二分散剂在芯颗粒的表面上形成壳。 版权所有(C)2007,JPO&INPIT
    • 5. 发明专利
    • METHOD FOR PRODUCING COMPOSITE NANOPARTICLE HAVING FePt CORE/Co SHELL STRUCTURE
    • 生产具有FePt核/ Co壳结构的复合纳米材料的方法
    • JP2008248367A
    • 2008-10-16
    • JP2007094769
    • 2007-03-30
    • Kyoto UnivToyota Motor Corpトヨタ自動車株式会社国立大学法人京都大学
    • YAMAMOTO SHINPEISATO TAKESHISHOJI TETSUYAKATO AKIRASAKUMA NORITSUGU
    • B22F1/02B82B3/00C23C18/04C23C18/08
    • PROBLEM TO BE SOLVED: To provide a method for producing composite nanoparticles having an FePt core/Co shell structure exhibiting excellent characteristics.
      SOLUTION: In the method for producing composite nanoparticles having an FePt core/Co shell structure where FePt core particles of nanosizes are coated with a Co shell, a polar solvent is added to a first solution in which FePt core particles previously subjected to heat treatment for forming a crystal structure exhibiting required characteristics are dispersed into a first organic solvent with a first dispersant, thus the first dispersant is peeled away from the FePt core particles, and the FePt core particles are flocculated and recovered, a zero-valent Co-containing compound as the precursor of a shell is added to a second solution obtained by dispersing the recovered core particles into a second organic solvent with a second dispersant, so as to form a Co shell on the surface of each FePt core particle.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 解决问题的方法:提供具有优异特性的FePt核/ Co壳结构的复合纳米粒子的制造方法。 解决方案:在具有FePt核/ Co壳结构的复合纳米颗粒的制造方法中,其中纳米尺度的FePt核心颗粒被Co壳涂覆,将极性溶剂加入到先前经受过FePt核心颗粒的第一溶液中 形成具有所需特性的晶体结构的热处理用第一分散剂分散在第一有机溶剂中,第一分散剂从FePt芯颗粒上剥离,FePt芯颗粒絮凝和回收,零价Co 加入到通过用第二分散剂将回收的芯颗粒分散到第二有机溶剂中而获得的第二溶液中,以在每个FePt核心颗粒的表面上形成Co壳。 版权所有(C)2009,JPO&INPIT
    • 6. 发明专利
    • Composite magnetic particulate powder, and dispersion
    • 复合磁性颗粒粉末和分散体
    • JP2014156411A
    • 2014-08-28
    • JP2013027166
    • 2013-02-14
    • Toda Kogyo Corp戸田工業株式会社Kyoto Univ国立大学法人京都大学
    • OHARA KAORIKOBAYASHI NARIYARUWAN GALLAGE POLWATTAYAMAMOTO SHINPEITAKANO MIKIO
    • A61K9/16A61K9/10A61K33/26A61K41/00A61K47/02A61K49/00A61P43/00
    • PROBLEM TO BE SOLVED: To provide a magnetic particle-containing water dispersion capable of exhibiting homogeneous functionality by easy modification and of producing a magnetic particle-containing medicine for diagnosis, therapy and the like, being highly dispersive in an aqueous solution.SOLUTION: In a composite magnetic particulate powder, the particle surface of a magnetic nanoparticle having a primary particle diameter of 10 to 100 nm is coated with a first layer, a second layer and a third layer in this order, where the first layer is a silicon oxide, the second layer is a silane coupling agent, amino acid or polysaccharide having a functional group selected from the group consisting of amino group, carboxyl group, hydroxyl group, azides and alkynes, and the third layer is an amino acid, polysaccharide or imine having a functional group selected from the group consisting of amino group, carboxyl group, hydroxyl group, azides and alkynes, which can be modified by amide bond, ester linkage or click reaction with the functional group on the surface of the second layer.
    • 要解决的问题:提供一种能够通过容易地改性显示均匀的官能团并且产生用于诊断,治疗等的含磁性颗粒的药物,在水溶液中高度分散的含磁性颗粒的水分散体。溶液:在 复合磁性颗粒粉末,初级粒径为10〜100nm的磁性纳米粒子的粒子表面依次涂覆有第一层,第二层和第三层,其中第一层为氧化硅, 第二层是硅烷偶联剂,具有选自氨基,羧基,羟基,叠氮化物和炔烃的官能团的氨基酸或多糖,第三层是氨基酸,多糖或亚胺,具有 选自氨基,羧基,羟基,叠氮化物和炔的官能团,其可以通过酰胺键修饰,酯 与第二层表面上的官能团的连接或点击反应。
    • 7. 发明专利
    • Composite magnetic particle powder, and dispersion
    • 复合磁粉和分散粉
    • JP2014156368A
    • 2014-08-28
    • JP2013027165
    • 2013-02-14
    • Toda Kogyo Corp戸田工業株式会社Kyoto Univ国立大学法人京都大学
    • OHARA KAORIKOBAYASHI NARIYARUWAN GALLAGE POLWATTAYAMAMOTO SHINPEITAKANO MIKIO
    • C01G49/08A61B5/055A61K9/00A61K9/08A61K47/02A61K51/00B82Y5/00B82Y25/00C01G49/06H01F1/06H01F1/20H01F1/28
    • PROBLEM TO BE SOLVED: To provide magnetic particles which can exhibit homogeneous functionality by being easily modified, can highly disperse in aqueous solvents, and can provide a magnetic particle-containing medicine for diagnosis, treatment, or the like, and to provide a dispersion containing the magnetic particles.SOLUTION: A composite magnetic particle powder is provided in which a particle surface of a magnetic nanoparticle with a primary particle diameter of 3-150 nm is covered with a first layer, a second layer, and a third layer in this order, the first layer is formed of a polymer having a carboxyl group, the second layer is formed of an amino acid or a polysaccharide, having a functional group selected from the group consisting of amino groups, carboxyl group, and hydroxyl groups, and the third layer is formed of an amino acid, a polysaccharide, and an imine, having a functional group selected from the group consisting of amino groups, carboxyl groups, hydroxyl groups, NOs, fluorescent dyes, a standard proteins, which can be modified with the functional groups of the second layer by an amide bond or an ester bond.
    • 要解决的问题:为了提供通过易于改性而显示均匀官能团的磁性颗粒,可以高度分散在含水溶剂中,并且可以提供用于诊断,处理等的含磁性颗粒的药物,并且提供含有 磁性颗粒。解决方案:提供一种复合磁性颗粒粉末,其中初级粒径为3-150nm的磁性纳米颗粒的颗粒表面以该顺序被第一层,第二层和第三层覆盖 第一层由具有羧基的聚合物形成,第二层由具有选自氨基,羧基和羟基的官能团的氨基酸或多糖形成,第三层由第三层 层由氨基酸,多糖和亚胺形成,具有选自氨基,羧基,羟基,NO, 荧光染料,可以通过酰胺键或酯键用第二层的官能团修饰的标准蛋白质。