Porous biomaterials
    12.
    发明授权
    Porous biomaterials 有权
    多孔生物材料

    公开(公告)号:US07972628B2

    公开(公告)日:2011-07-05

    申请号:US10595233

    申请日:2004-10-01

    IPC分类号: A61K9/50

    摘要: The invention provides porous biomaterials and methods for forming porous biomaterials. The porous biomaterials of the invention comprise a biocompatible polymer scaffold defining an array of pores, wherein substantially all the pores have a similar diameter, wherein the mean diameter of the pores is between about 20 and about 90 micrometers, wherein substantially all the pores are each connected to at least 4 other pores, and wherein the diameter of substantially all the connections between the pores is between about 15% and about 40% of the mean diameter of the pores. The invention also provides implantable devices comprising a layer of a biomaterial, and methods for promoting angiogenesis in and around an implantable biomaterial.

    摘要翻译: 本发明提供用于形成多孔生物材料的多孔生物材料和方法。 本发明的多孔生物材料包括限定孔阵列的生物相容性聚合物支架,其中基本上所有的孔具有相似的直径,其中孔的平均直径在约20和约90微米之间,其中基本上所有的孔各自 连接到至少4个其它孔,并且其中孔之间的基本上所有连接的直径在孔的平均直径的约15%至约40%之间。 本发明还提供了包括生物材料层的可植入装置,以及用于在可植入生物材料内和周围促进血管生成的方法。

    Hydrogels formed by non-covalent linkages
    14.
    发明授权
    Hydrogels formed by non-covalent linkages 失效
    由非共价键形成的水凝胶

    公开(公告)号:US07300962B2

    公开(公告)日:2007-11-27

    申请号:US11199613

    申请日:2005-08-09

    IPC分类号: C08J3/03

    摘要: In one aspect, the present invention provides hydrogels comprising polymer molecules and bridging molecules, wherein substantially all the polymer molecules are cross-linked by hydrogen bonds between polymer molecules and bridging molecules, wherein each bridging molecule is linked to at least two polymer molecules, and wherein there are substantially no covalent linkages between the polymer molecules. In some embodiments, the polymer molecules are poly(vinyl alcohol) (PVA) and the bridging molecules are amino acids. Some embodiments of the invention provide devices comprising hydrogels, and pharmaceutical compositions comprising biologically active molecules within hydrogels. Another aspect provides methods for forming hydrogels of the invention.

    摘要翻译: 在一个方面,本发明提供了包含聚合物分子和桥接分子的水凝胶,其中基本上所有的聚合物分子通过聚合物分子和桥连分子之间的氢键交联,其中每个桥连分子与至少两个聚合物分子连接,以及 其中聚合物分子之间基本上没有共价键。 在一些实施方案中,聚合物分子是聚(乙烯醇)(PVA),桥连分子是氨基酸。 本发明的一些实施方案提供了包含水凝胶的装置和包含水凝胶内的生物活性分子的药物组合物。 另一方面提供了用于形成本发明的水凝胶的方法。

    Methods for photopatterning hydrogels
    15.
    发明授权
    Methods for photopatterning hydrogels 失效
    光图案化水凝胶的方法

    公开(公告)号:US07192693B2

    公开(公告)日:2007-03-20

    申请号:US11067480

    申请日:2005-02-24

    摘要: In one aspect, the invention provides methods for forming a photopatterned hydrogel. In some embodiments, the methods comprise the step of exposing a solution comprising a monomer, a crosslinking agent, and a photoinitiator to a pattern of light comprising a first and a second light intensity for a period of time and under suitable conditions for the first light intensity to induce essentially complete conversion of polymerizable groups on the monomer and the crosslinking agent to form a patterned hydrogel, and for the second light intensity to induce partial conversion of the polymerizable groups on the monomer and the crosslinking agent to form partially polymerized polymers that remain soluble. In some embodiments, the first light intensity is lower than the second light intensity. In another aspect, the invention provides methods for forming porous, photopatterned hydrogels.

    摘要翻译: 一方面,本发明提供了形成光图案化水凝胶的方法。 在一些实施方案中,所述方法包括以下步骤:将包含单体,交联剂和光引发剂的溶液暴露于包含第一和第二光强度的光图案持续一段时间并在适合第一光照条件下 强度以诱导单体和交联剂上的可聚合基团的基本上完全转化以形成图案化的水凝胶,并且为了使第二光强度诱导单体和交联剂上的可聚合基团的部分转化以形成部分聚合的聚合物,其保留 易溶。 在一些实施例中,第一光强度低于第二光强度。 另一方面,本发明提供了形成多孔,光图案化水凝胶的方法。

    Porous structures useful for growing living tissue, and methods of manufacture
    16.
    发明授权
    Porous structures useful for growing living tissue, and methods of manufacture 失效
    用于生长生物体组织的多孔结构及其制造方法

    公开(公告)号:US07105580B2

    公开(公告)日:2006-09-12

    申请号:US10314453

    申请日:2002-12-05

    IPC分类号: B01J13/00 C12N5/00 C12N5/02

    CPC分类号: A61L27/38 A61L27/56 A61L27/58

    摘要: In one aspect the present invention provides biodegradable, porous structures that each include a structural framework, wherein the structural framework includes: (a) a solidified mixture of polymer molecules and amino acid molecules, wherein at least some of the amino acid molecules are linked to other amino acid molecules within the framework; and (b) a multiplicity of interconnected spaces defined by the structural framework. In some embodiments, the porous structures of the invention are adapted to physically support the growth of living cells in vitro or in vivo, and can be used to grow living tissue and/or living organs. The present invention also provide methods for making the biodegradable, porous structures of the invention.

    摘要翻译: 在一个方面,本发明提供了可生物降解的多孔结构,其各自包括结构框架,其中所述结构框架包括:(a)聚合物分子和氨基酸分子的固化混合物,其中至少一些所述氨基酸分子连接到 框架内的其他氨基酸分子; 和(b)由结构框架定义的多个互连空间。 在一些实施方案中,本发明的多孔结构适于在体外或体内物理支持活细胞的生长,并且可用于生长活组织和/或活体器官。 本发明还提供了制造本发明的可生物降解的多孔结构的方法。

    Polymeric intraocular lens material having improved surface properties
and intraocular lens construction
    17.
    发明授权
    Polymeric intraocular lens material having improved surface properties and intraocular lens construction 失效
    具有改善的表面性能和眼内透镜结构的聚合物眼内透镜材料

    公开(公告)号:US6143027A

    公开(公告)日:2000-11-07

    申请号:US41796

    申请日:1987-04-23

    摘要: An intraocular lens is described that includes an optic portion formed of an optically suitable polymer or glass material that has been coated by a fluorocarbon polymer. A haptic portion of the IOL is attached to the optic. The resulting low-energy IOL surface induces significantly reduced cell damage when contacted with corneal endothelial tissues. The fluorocarbon polymer coating is preferably applied by exposing IOL surfaces to a plasma formed from a gaseous fluorocarbon monomer. The resulting IOL causes substantially less damage to corneal endothelial cells during implantation.

    摘要翻译: 描述了一种眼内透镜,其包括由已经被氟碳聚合物涂覆的光学上合适的聚合物或玻璃材料形成的光学部分。 IOL的触觉部分连接到光学元件。 当与角膜内皮组织接触时,所得的低能量IOL表面诱导显着降低的细胞损伤。 氟碳聚合物涂层优选通过将IOL表面暴露于由气态氟碳单体形成的等离子体来施加。 所产生的IOL在植入期间对角膜内皮细胞的损伤明显更小。

    Method and device for hydrogen storage and delivery
    19.
    发明授权
    Method and device for hydrogen storage and delivery 有权
    氢气储存和输送的方法和装置

    公开(公告)号:US08459032B2

    公开(公告)日:2013-06-11

    申请号:US11403484

    申请日:2006-04-12

    IPC分类号: B01J7/00 H01M8/06 F03G7/00

    摘要: The present invention relates to hydrogen production for the generation of energy. The invention describes methods, devices and assemblies involving hydrogen production including reacting hydrogen producing compounds, such as organothiol compounds, with a reactive metal substrate to produce hydrogen gas and utilizing the hydrogen gas to generate energy. The present invention further describes regenerating spent compound to a form suitable for hydrogen production by reacting the spent compound with hydrogen. Hydrogen storage and production, as described herein, is useful for producing hydrogen for energy production in hydrogen consuming devices, such as combustible engines and fuel cells, for example, as located on a hydrogen powered vehicle.

    摘要翻译: 本发明涉及用于产生能量的氢气生产。 本发明描述了涉及氢生产的方法,装置和组件,包括使产生氢的化合物如有机硫醇化合物与活性金属底物反应以产生氢气并利用氢气产生能量。 本发明进一步描述了通过使废化合物与氢反应而将废化合物再生成适于氢生产的形式。 如本文所述,氢储存和生产可用于在氢消耗装置(例如可燃发动机和燃料电池)中产生用于能量产生的氢,例如位于氢动力车辆上。