利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

698 条记录 (耗时 0.027 秒)

    Carbon coated magnetic nanoparticles and their use in separation processes
    34.
    发明授权
    Carbon coated magnetic nanoparticles and their use in separation processes 有权
    碳涂层磁性纳米粒子及其在分离过程中的应用

    公开(公告)号：US08801936B2

    公开(公告)日：2014-08-12

    申请号：US12513823

    申请日：2007-11-02

    申请人： Robert N. Grass ,  Wendelin Jan Stark

    发明人： Robert N. Grass ,  Wendelin Jan Stark

    IPC分类号： C02F1/48 ,  B32B1/00 ,  H01F1/00

    CPC分类号： B03C1/015 ,  B82Y25/00 ,  H01F1/0054 ,  Y10T428/2984 ,  Y10T428/2998

    摘要： The invention relates to a process for separating a dispersed phase from a continuous phase comprising the steps of i) contacting said phases with an effective amount of nanoparticles; ii) applying a magnetic field gradient to the obtained system; iii) separating the obtained phases wherein said nanoparticles are of the core shell type, said core consists of a metal or alloy having soft magnetic properties and said shell contains a graphene layers which are optionally functionalized; to new nanoparticles and method of manufacturing such nanoparticles.

    摘要翻译： 本发明涉及从连续相分离分散相的方法，包括以下步骤：i）使所述相与有效量的纳米颗粒接触; ii）对所获得的系统施加磁场梯度; iii）分离其中所述纳米颗粒是核壳型的所得相，所述芯由具有软磁性质的金属或合金组成，并且所述壳包含任选被官能化的石墨烯层; 新纳米颗粒和制造这种纳米颗粒的方法。

    Polymer coated microparticles
    36.
    发明授权
    Polymer coated microparticles 有权
    聚合物涂层微粒

    公开(公告)号：US08715739B2

    公开(公告)日：2014-05-06

    申请号：US11552324

    申请日：2006-10-24

    申请人： Gil U. Lee ,  Hao Shang ,  Won-Suk Chang

    发明人： Gil U. Lee ,  Hao Shang ,  Won-Suk Chang

    IPC分类号： A61K9/50

    CPC分类号： B01J2/06 ,  A61K41/0028 ,  A61K41/0052 ,  A61K49/1887 ,  B01J13/12 ,  B01J13/14 ,  B82Y5/00 ,  B82Y25/00 ,  H01F1/0054

    摘要： Methods for preparing uniformly sized micropanicles, with an optional polymeric coating generally include: 1) providing nanoparticles, preferably having a size of between 1 nm and 100 nm; 2) adding a hydrophobic surface layer to the nanoparticles; 3) making a suspension of the hydrophobic nanoparticles and a polymerization initiator in an hydrophobic solvent; 4) dissolving a monomer in the hydrophobic solvent; 5) making an emulsion by dispersing droplets of the hydrophobic solvent in a continuous aqueous phase with an emulsifier; 6) sizing the first emulsion to provide a second emulsion of the same components in which the droplets are substantially uniform and between 2 and 20 um in size; 7) evaporating at least a substantial portion of the dispersed hydrophobic droplets to assemble nanoparticles to form micropanicles suspended now in the aqueous phase; 8) replacing the first surfactant with a second surfactant, which is preferably a polymerizable surfactant; 9) adding a polymerizable monomer to the aqueous phase and allowing it to adsorb into the microparticle; 10) polymerizing the monomer(s) to provide a polymer layer on the micropanicles; and 11) functionalizing the polymer surface layer erf the micropanicles with one or more polymer, nanoparticle or biological macromolecular layers.

    摘要翻译： 用任选的聚合物涂层制备均匀尺寸的微粒子的方法通常包括：1）提供优选具有1nm至100nm尺寸的纳米颗粒; 2）向纳米颗粒中加入疏水表面层; 3）使疏水性纳米粒子和聚合引发剂在疏水性溶剂中的悬浮液; 4）将单体溶解在疏水溶剂中; 5）通过将疏水性溶剂的液滴与乳化剂分散在连续的水相中来制备乳液; 6）调整第一乳液的尺寸以提供相同组分的第二乳液，其中液滴基本上均匀且尺寸在2-20μm之间; 7）蒸发至少大部分分散的疏水液滴以组装纳米颗粒以形成现在悬浮于水相中的微球; 8）用优选可聚合表面活性剂的第二表面活性剂代替第一表面活性剂; 9）向水相中加入可聚合单体并使其吸附到微粒中; 10）聚合单体以在微粒上提供聚合物层; 和11）使用一种或多种聚合物，纳米颗粒或生物大分子层对聚合物表面层进行功能化。

    Reprogrammable parallel nanomanufacturing
    37.
    发明授权
    Reprogrammable parallel nanomanufacturing 有权
    可编程并行纳米制造

    公开(公告)号：US08617643B2

    公开(公告)日：2013-12-31

    申请号：US12376646

    申请日：2007-10-01

    申请人： Thomas M. Crawford

    发明人： Thomas M. Crawford

    IPC分类号： B05D5/12

    CPC分类号： H01F1/0063 ,  B82Y25/00 ,  B82Y30/00 ,  H01F1/0054 ,  H01F1/111

    摘要： A method of producing a nanoscale structure having substantially immobilized nanoparticles arranged at a predetermined patterned is generally disclosed. First, a curable polymeric solution is placed within a well defined by a wafer. The curable polymeric solution includes a curable polymeric material and a magnetically coated nanoparticle. The well is positioned adjacent to an atomically-smooth medium. A recording head is moved in a predetermined manner to produce a magnetic field profile that substantially immobilizes the magnetically coated nanoparticle within the curable polymeric solution in the well. The curable polymeric solution is cured such that the magnetically coated nanoparticle remains substantially immobilized after the magnetic field profile is removed.

    摘要翻译： 通常公开了一种制备具有以预定图案化布置的基本上固定的纳米级纳米尺度结构的方法。 首先，将可固化的聚合物溶液放置在由晶片限定的阱内。 可固化的聚合物溶液包括可固化的聚合物材料和磁性涂覆的纳米颗粒。 井与原子光滑介质相邻。 记录头以预定的方式移动以产生磁场分布，其基本上将磁性涂覆的纳米颗粒固定在井中的可固化聚合物溶液中。 固化的聚合物溶液被固化，使得在除去磁场分布之后，磁性涂覆的纳米颗粒保持基本上固定。