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    • 4. 发明授权
    • Nanocomposites
    • 纳米复合材料
    • US08632884B2
    • 2014-01-21
    • US13057395
    • 2008-08-06
    • Jackie Y. YingJun Yang
    • Jackie Y. YingJun Yang
    • B32B5/16
    • B22F1/0022B22F1/02B22F1/025B82Y30/00C30B7/14C30B29/02C30B29/46C30B29/60
    • The invention describes a nanocomposite particle comprising a nanoparticle having a surface comprising a silver salt, and at least one region of metallic gold on said surface. The invention also provides a nanocomposite material comprising said particles and processes for making the nanocomposite material, either by allowing gold in nanoparticles having a silver salt on the surface thereof to at least partially diffuse through the silver salt so as to form at least one region of metallic gold on said surface, or else by depositing metallic gold on the surfaces of nanoparticles having the silver salt on the surface thereof.
    • 本发明描述了一种纳米复合材料颗粒,其包含具有包含银盐的表面的纳米颗粒和在所述表面上的金属金的至少一个区域。 本发明还提供了一种包含所述颗粒的纳米复合材料和用于制备纳米复合材料的方法,方法是使其表面上具有银盐的纳米颗粒中的金至少部分地通过银盐扩散,以形成至少一个 或者通过在其表面上具有银盐的纳米颗粒的表面上沉积金属金。
    • 7. 发明申请
    • FIBROUS SUBSTRATES FOR CELL PROPAGATION AND DIFFERENTIATION
    • 纤维基质用于细胞传播和分化
    • US20130295637A1
    • 2013-11-07
    • US13814501
    • 2011-08-05
    • Hongfang LuAndrew Chwee Aun WanJackie Y. YingKarthikeyan Narayanan
    • Hongfang LuAndrew Chwee Aun WanJackie Y. YingKarthikeyan Narayanan
    • C12N11/04
    • C12N11/04C12N5/0012C12N5/0606C12N2533/72C12N2533/74
    • The present invention relates to a method of releasably encapsulating pluripotent embryonic stem cells in a degradable continuous polyionic fiber for tissue culture, wherein the encapsulated embryonic stem cells are able to maintain a pluripotent phenotype in tissue culture; the method comprising (a) contacting an aqueous solution of a polyanion with an aqueous solution of a polycation to form an interface between the aqueous solution of polyanion and the aqueous solution of polycation, and wherein the aqueous solution of polyanion or the aqueous solution of polycation or both the aqueous solution of polyanion and the aqueous solution of polycation comprises a suspension of pluripotent embryonic stem cells; (b) drawing a continuous polyionic fiber which comprises encapsulated pluripotent embryonic stem cells from the interface; (c) passing the continuous polyionic fiber comprising encapsulated pluripotent embryonic stem cells in a continuous process through a solution which reduces secondary complexation of the components of the polyionic fiber.
    • 本发明涉及一种将多能胚胎干细胞可释放地包封在用于组织培养的可降解连续聚离子纤维中的方法,其中包封的胚胎干细胞能够在组织培养中保持多能表型; 该方法包括(a)将聚阴离子的水溶液与聚阳离子水溶液接触以形成聚阴离子水溶液与聚阳离子水溶液之间的界面,并且其中聚阴离子水溶液或聚阳离子水溶液 或聚阴离子水溶液和聚阳离子水溶液两者均包含多能胚胎干细胞的悬浮液; (b)从界面绘制包含多能胚胎干细胞的连续聚离子纤维; (c)使包含多能胚胎干细胞的连续聚离子纤维在连续过程中通过减少聚离子纤维组分的次级络合的溶液。