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    • 3. 发明申请
    • INORGANIC NANOWIRES
    • 无机纳米材料
    • WO2005067683A2
    • 2005-07-28
    • PCT/US2005/000075
    • 2005-01-05
    • BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM?MASSACHUSETTS INSTITUTE OF TECHNOLOGY, INC.BELCHER, Angela, M.MAO, ChuanbinSOLIS, Daniel, J.
    • BELCHER, Angela, M.MAO, 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去除的有机支架的无机纳米线,所述无机纳米线基本上由基本上不含有机支架的融合无机纳米粒子组成,以及制备所述无机纳米线的方法。 例如,可以使用基于病毒的用于合成单晶ZnS,CdS和独立式L10 CoPt和FePt纳米线的支架,以及通过标准生物学方法改变​​底物特异性的手段。 可以通过进化筛选过程来选择肽,在M13噬菌体的高度有序丝状衣壳上已经表达了纳米颗粒成核过程中组成,大小和相的控制。 将特定的成核肽掺入到M13涂层结构的通用支架中可以为包括半导体和磁性材料在内的各种材料的定向合成提供可行的模板。 通过退火去除病毒模板可以促进基于聚集的定向晶体生长,从而形成单独的晶体纳米线。 将底物特异性肽交换成M13病毒的线性自身和害羞组装丝状构建体的独特能力引入了在先前的合成途径中未见的材料可调性。 因此,这个系统提供了一个基因工具包,用于从各种材料中生长和组织纳米线,包括半导体和磁性材料。