Sequential coupling of biomolecule layers to polymers
    1.
    发明申请
    Sequential coupling of biomolecule layers to polymers 审中-公开
    生物分子层与聚合物的顺序耦合

    公开(公告)号:US20090117166A1

    公开(公告)日:2009-05-07

    申请号:US12228884

    申请日:2008-08-15

    摘要: A bio-mimetic or bio-implantable material based on a sequential process of coupling biomolecule layers to a polymer layer is provided. In general, the material could be based on two or more biomolecule layers starting with one of the layers covalently linked to the polymer layer via cross-linkers and the other layers sequentially and covalently linked using cross-linkers to the previously added layer. The polymer layer could be a hydrogel or an interpenetrating polymer network hydrogel. The first layer of biomolecules could be a collagen type, fibronectin, laminin, extracellular matrix protein, or any combinations thereof. The second layer of biomolecules typically is a growth factor, protein or stimulant. The cross-linkers are either water soluble or insoluble bifunctional cross-linkers or azide-active-ester crosslinkers. The material and process as taught in this invention are useful in the field of tissue engineering and wound healing.

    摘要翻译: 提供了基于将生物分子层耦合到聚合物层的顺序方法的生物模拟或生物可植入材料。 通常,该材料可以基于两个或更多个生物分子层,其起始于通过交联剂共价连接到聚合物层的层之一,并且其它层使用交联剂顺序并共价连接到先前添加的层。 聚合物层可以是水凝胶或互穿聚合物网络水凝胶。 第一层生物分子可以是胶原型,纤连蛋白,层粘连蛋白,细胞外基质蛋白或其任何组合。 第二层生物分子通常是生长因子,蛋白质或兴奋剂。 交联剂是水溶性或不溶性双功能交联剂或叠氮化物 - 活性酯交联剂。 本发明教导的材料和方法可用于组织工程和伤口愈合领域。

    Artificial corneal implant
    2.
    发明申请
    Artificial corneal implant 审中-公开
    人造角膜植入物

    公开(公告)号:US20110184513A1

    公开(公告)日:2011-07-28

    申请号:US12928819

    申请日:2010-12-20

    IPC分类号: A61F2/14

    摘要: A material that can be applied as implants designed to artificially replace or augment the cornea, such as an artificial cornea, corneal onlay, or corneal inlay (intrastromal lens) is provided. The artificial corneal implant has a double network hydrogel with a first network interpenetrated with a second network. The first network and the second network are based on biocompatible polymers. At least one of the network polymers is based on a hydrophilic polymer. The artificial cornea or implant has epithelialization promoting biomolecules that are covalently linked to the surface of the double network hydrogel using an azide-active-ester chemical linker. Corneal epithelial cells or cornea-derived cells are adhered to the biomolecules. The double network has a physiologic diffusion coefficient to allow passage of nutrients to the adhered cells.

    摘要翻译: 提供了可以作为植入物被应用于人造地替代或增加角膜的材料,例如人造角膜,角膜镶嵌物或角膜嵌体(体内镜片)。 人造角膜植入物具有双网络水凝胶,其中第一网络与第二网络互穿。 第一个网络和第二个网络是基于生物相容的聚合物。 至少一种网状聚合物是基于亲水性聚合物。 人造角膜或植入物具有上皮促进生物分子,其使用叠氮化物 - 活性酯化学接头共价连接到双网络水凝胶的表面。 角膜上皮细胞或角膜衍生细胞粘附于生物分子。 双网络具有生理扩散系数,以允许营养物质通过粘附细胞。

    Interpenetrating polymer network hydrogel contact lenses
    3.
    发明申请
    Interpenetrating polymer network hydrogel contact lenses 审中-公开
    互穿聚合物网络水凝胶隐形眼镜

    公开(公告)号:US20110166247A1

    公开(公告)日:2011-07-07

    申请号:US12928820

    申请日:2010-12-20

    IPC分类号: G02C7/04 C08L33/02 C08L77/00

    摘要: The present invention provides interpenetrating polymer network hydrogels that have high oxygen permeability, strength, water content, and resistance to protein adsorption. The hydrogels include two interpenetrating polymer networks. The first polymer network is based on a hydrophilic telechelic macromonomer. The second polymer network is based on a hydrophilic monomer. The hydrophilic monomer is polymerized and cross-linked to form the second polymer network in the presence of the first polymer network. The telechelic macromonomer preferably has a molecular weight of between about 575 Da and about 20,000 Da. Mixtures of molecular weights may also be used. In a preferred embodiment, the hydrophilic telechelic macromonomer is PEG-diacrylamide and the hydrophilic monomer is an acrylic-based monomer. The material is designed to serve as a contact lens.

    摘要翻译: 本发明提供了具有高透氧性,强度,含水量和耐蛋白质吸附性的互穿聚合物网状水凝胶。 水凝胶包括两个互穿聚合物网络。 第一个聚合物网络是基于亲水的遥爪大分子单体。 第二聚合物网络基于亲水性单体。 在第一聚合物网络的存在下,亲水单体聚合并交联以形成第二聚合物网络。 遥爪大分子单体的分子量优选为约575Da至约20,000Da。 也可以使用分子量的混合物。 在优选的实施方案中,亲水遥爪大分子单体是PEG-二丙烯酰胺,亲水单体是丙烯酸类单体。 该材料被设计成用作隐形眼镜。

    Interpenetrating polymer network hydrogel corneal prosthesis
    5.
    发明授权
    Interpenetrating polymer network hydrogel corneal prosthesis 有权
    互穿聚合物网络水凝胶角膜假体

    公开(公告)号:US07909867B2

    公开(公告)日:2011-03-22

    申请号:US11639049

    申请日:2006-12-13

    IPC分类号: A61F2/14

    摘要: The present invention provides materials that have high glucose and oxygen permeability, strength, water content, and resistance to protein adsorption. The materials include an interpenetrating polymer network (IPN) hydrogel that is coated with biomolecules. The IPN hydrogels include two interpenetrating polymer networks. The first polymer network is based on a hydrophilic telechelic macromonomer. The second polymer network is based on a hydrophilic monomer. The hydrophilic monomer is polymerized and cross-linked to form the second polymer network in the presence of the first polymer network. In a preferred embodiment, the hydrophilic telechelic macromonomer is PEG-diacrylate or PEG-dimethacrylate and the hydrophilic monomer is an acrylic-based monomer. Any biomolecules may be linked to the IPN hydrogels, but are preferably biomolecules that support the growth of cornea-derived cells. The material is designed to serve as a corneal prosthesis.

    摘要翻译: 本发明提供具有高葡萄糖和透氧性,强度,含水量和抗蛋白质吸附性的材料。 这些材料包括涂覆有生物分子的互穿聚合物网络(IPN)水凝胶。 IPN水凝胶包括两个互穿聚合物网络。 第一个聚合物网络是基于亲水的遥爪大分子单体。 第二聚合物网络基于亲水性单体。 在第一聚合物网络的存在下,亲水单体聚合并交联以形成第二聚合物网络。 在优选的实施方案中,亲水遥爪大分子单体是PEG-二丙烯酸酯或PEG-二甲基丙烯酸酯,亲水性单体是丙烯酸类单体。 任何生物分子可以连接到IPN水凝胶,但优选是支持角膜衍生细胞生长的生物分子。 该材料设计用作角膜假体。

    High refractive index interpenetrating networks for ophthalmic applications
    7.
    发明申请
    High refractive index interpenetrating networks for ophthalmic applications 审中-公开
    用于眼科应用的高折射率互穿网络

    公开(公告)号:US20100280147A1

    公开(公告)日:2010-11-04

    申请号:US12800718

    申请日:2010-05-19

    IPC分类号: A61F2/16

    CPC分类号: A61L27/52 A61L2430/16

    摘要: Ophthalmic devices are provided based on an interpenetrating (IPN) double network hydrogel of a first network physically entangled with a second network. The first network is an entangled network of self-linked hydrophilic telechelic macromonomers and hydrophobic moieties. The second network is a hydrophilic network of crosslinked polyacrylic acid. The IPN double network hydrogels including the hydrophobic moieties are characterized by being optically clear and having refractive indices above 1.34.

    摘要翻译: 基于与第二网络物理缠结的第一网络的互穿(IPN)双网络水凝胶提供眼科装置。 第一个网络是自交亲水遥爪大分子单体和疏水部分的缠结网络。 第二个网络是交联聚丙烯酸的亲水网络。 包括疏水部分的IPN双网络水凝胶的特征在于光学透明且折射率高于1.34。

    Interpenetrating polymer network hydrogel corneal prosthesis
    8.
    发明申请
    Interpenetrating polymer network hydrogel corneal prosthesis 有权
    互穿聚合物网络水凝胶角膜假体

    公开(公告)号:US20070179605A1

    公开(公告)日:2007-08-02

    申请号:US11639049

    申请日:2006-12-13

    IPC分类号: A61F2/14 C12N5/08

    摘要: The present invention provides materials that have high glucose and oxygen permeability, strength, water content, and resistance to protein adsorption. The materials include an interpenetrating polymer network (IPN) hydrogel that is coated with biomolecules. The IPN hydrogels include two interpenetrating polymer networks. The first polymer network is based on a hydrophilic telechelic macromonomer. The second polymer network is based on a hydrophilic monomer. The hydrophilic monomer is polymerized and cross-linked to form the second polymer network in the presence of the first polymer network. In a preferred embodiment, the hydrophilic telechelic macromonomer is PEG-diacrylate or PEG-dimethacrylate and the hydrophilic monomer is an acrylic-based monomer. Any biomolecules may be linked to the IPN hydrogels, but are preferably biomolecules that support the growth of cornea-derived cells. The material is designed to serve as a corneal prosthesis.

    摘要翻译: 本发明提供具有高葡萄糖和透氧性,强度,含水量和抗蛋白质吸附性的材料。 这些材料包括涂覆有生物分子的互穿聚合物网络(IPN)水凝胶。 IPN水凝胶包括两个互穿聚合物网络。 第一个聚合物网络是基于亲水的遥爪大分子单体。 第二聚合物网络基于亲水性单体。 在第一聚合物网络的存在下,亲水单体聚合并交联以形成第二聚合物网络。 在优选的实施方案中,亲水遥爪大分子单体是PEG-二丙烯酸酯或PEG-二甲基丙烯酸酯,亲水性单体是丙烯酸类单体。 任何生物分子可以连接到IPN水凝胶,但优选是支持角膜衍生细胞生长的生物分子。 该材料设计用作角膜假体。

    Intraocular lens implant
    10.
    发明申请
    Intraocular lens implant 审中-公开
    人工晶状体植入物

    公开(公告)号:US20070233240A1

    公开(公告)日:2007-10-04

    申请号:US11725190

    申请日:2007-03-16

    IPC分类号: A61F2/16

    摘要: The present invention provides a hydrogel-based intraocular lens (IOL) implant that can covalently attach to a lens capsule on implantation into an eye. The inventive IOL has a high refractive index, high elasticity, and is of a similar size to a naturally occurring lens. In addition, the IOL can be implanted in a smaller, dehydrated state, allowing the IOL to be placed in the lens capsule with a small incision (up to about 1/10 the volume of the IOL). Exposure to fluid can then initiate rapid swelling of the dried polymer to the shape and dimensions of a natural lens, with full occupation of the lens capsule. Upon equilibrium swelling, the IOL can then make contact with the inner aspect of the lens capsule and covalently bind to it. By this attachment process, the IOL may accommodate in a manner identical to that of the natural lens.

    摘要翻译: 本发明提供一种水凝胶型眼内透镜(IOL)植入物,其可以植入眼睛中共价连接到晶状体囊。 本发明的IOL具有高折射率,高弹性,并且具有与天然存在的透镜相似的尺寸。 此外,IOL可以植入较小的脱水状态,允许IOL以小切口(高达IOL体积的约1/10)放置在晶状体囊中。 然后暴露于流体可以引发干燥的聚合物快速膨胀到天然晶状体的形状和尺寸,完全占据晶状体囊。 在平衡肿胀时,IOL然后可以与镜片胶囊的内部部分接触并共价结合。 通过该附接过程,IOL可以以与天然镜片相同的方式容纳。