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    • 78. 发明申请
    • INORGANIC NANOWIRES
    • 无机纳米级
    • WO2005067683A3
    • 2005-12-08
    • PCT/US2005000075
    • 2005-01-05
    • UNIV TEXASMASSACHUSETTS INST TECHNOLOGYBELCHER ANGELA MMAO CHUANBINSOLIS DANIEL J
    • BELCHER ANGELA MMAO CHUANBINSOLIS DANIEL J
    • C04B35/64D02G3/00H01L29/06H01L29/22H01L29/745H05B6/00
    • H01B1/10B82Y10/00B82Y30/00C01B19/007C01G9/08C01P2004/04C01P2004/16C04B35/62272C04B2235/3284C04B2235/446H01B1/06H01F1/01H01F1/068H01L29/0665H01L29/0669H01L29/0673H01L29/22Y10T428/249924Y10T428/2913Y10T428/2927Y10T428/298
    • An inorganic nanowire having an organic scaffold substantially removed from the inorganic nanowire, the inorganic nanowire consisting essentially of fused inorganic nanoparticles substantially free of the organic scaffold, and methods of making same. For example, a virus-based scaffold for the synthesis of single crystal ZnS, CdS and free-standing L10 CoPt and FePt nanowires can be used, with the means of modifying substrate specificity through standard biological methods. Peptides can be selected through an evolutionary screening process that exhibit control of composition, size, and phase during nanoparticle nucleation have been expressed on the highly ordered filamentous capsid of the M13 bacteriophage. The incorporation of specific, nucleating peptides into the generic scaffold of the M13 coat structure can provide a viable template for the directed synthesis of a variety of materials including semiconducting and magnetic materials. Removal of the viral template via annealing can promote oriented aggregation-based crystal growth, forming individual crystalline nanowires. The unique ability to interchange substrate specific peptides into the linear self­assembled filamentous construct of the M 13 virus introduces a material tunability not seen in previous synthetic routes. Therefore, this system provides a genetic tool kit for growing and organizing nanowires from various materials including semiconducting and magnetic materials.
    • 具有基本上从无机纳米线除去的有机支架的无机纳米线,基本上不含有机骨架的熔融无机纳米线组成的无机纳米线及其制备方法。 例如,可以使用用于合成单晶ZnS,CdS和独立的L10 CoPt和FePt纳米线的基于病毒的支架,具有通过标准生物学方法修饰底物特异性的方法。 可以通过进化筛选方法选择肽,其在M13噬菌体的高度有序的丝状衣壳上表达纳米颗粒成核期间组合物,大小和相位的控制。 将特定的成核肽并入M13涂层结构的通用支架中可以提供用于定向合成各种材料(包括半导体和磁性材料)的可行模板。 通过退火去除病毒模板可促进取向聚集的晶体生长,形成单独的晶体纳米线。 将底物特异性肽转化为M13病毒的线性自组装丝状构建体的独特能力引入了在以前的合成途径中未见的材料可调性。 因此,该系统提供了一种遗传工具包,用于从包括半导体和磁性材料的各种材料生长和组织纳米线。