pH-induced silk gels and uses thereof
    1.
    发明授权
    pH-induced silk gels and uses thereof 有权
    pH诱导的丝凝胶及其用途

    公开(公告)号:US08501172B2

    公开(公告)日:2013-08-06

    申请号:US12974796

    申请日:2010-12-21

    IPC分类号: A61K39/395

    摘要: This invention provides for compositions, methods and devices for rapidly converting silk fibroin solution into a silk fibroin gel using direct application of voltage, in a process called electrogelation. The silk fibroin gel may be reversibly converted back to liquid form by applying reverse voltage or may be converted further to β-sheet structure by applying shear force or other treatments. The electrogelated silk may be used as an extracted bulk gel, spray or stream of gel for processing into materials or devices, or may be used as silk gel coating to devices. Active agents may be embedded in the silk gel for various medical applications. This invention also provides for methods and compositions for preparing adhesive silk pH-gels. For example, the method comprises reducing pH level of a silk fibroin solution to increase the bulk or local proton concentration of the silk fibroin solution, thereby forming adhesive silk gels.

    摘要翻译: 本发明提供了在称为电凝胶的方法中,使用直接施加电压将丝素蛋白溶液快速转化成丝素蛋白凝胶的组合物,方法和装置。 丝素蛋白凝胶可以通过施加反向电压而可逆地转化为液体形式,或者可以通过施加剪切力或其它处理而进一步转化成β-折叠结构。 电致凝胶丝可以用作提取的体积凝胶,喷雾或凝胶流加工成材料或装置,或者可以用作设备的丝凝胶涂层。 活性剂可以嵌入丝绸凝胶中用于各种医疗应用。 本发明还提供了制备粘性丝pH凝胶的方法和组合物。 例如,该方法包括降低丝素蛋白溶液的pH值以增加丝素蛋白溶液的体积或局部质子浓度,由此形成粘性丝凝胶。

    pH INDUCED SILK GELS AND USES THEREOF
    2.
    发明申请
    pH INDUCED SILK GELS AND USES THEREOF 有权
    pH诱导丝光凝胶及其用途

    公开(公告)号:US20110171239A1

    公开(公告)日:2011-07-14

    申请号:US12974796

    申请日:2010-12-21

    摘要: This invention provides for compositions, methods and devices for rapidly converting silk fibroin solution into a silk fibroin gel using direct application of voltage, in a process called electrogelation. The silk fibroin gel may be reversibly converted back to liquid form by applying reverse voltage or may be converted further to β-sheet structure by applying shear force or other treatments. The electrogelated silk may be used as an extracted bulk gel, spray or stream of gel for processing into materials or devices, or may be used as silk gel coating to devices. Active agents may be embedded in the silk gel for various medical applications. This invention also provides for methods and compositions for preparing adhesive silk pH-gels. For example, the method comprises reducing pH level of a silk fibroin solution to increase the bulk or local proton concentration of the silk fibroin solution, thereby forming adhesive silk gels.

    摘要翻译: 本发明提供了在称为电凝胶的方法中,使用直接施加电压将丝素蛋白溶液快速转化成丝素蛋白凝胶的组合物,方法和装置。 丝素蛋白凝胶可以通过施加反向电压而可逆地转化回液体形式,或者可以通过施加剪切力或其它处理而进一步转化为“薄片”结构。 电致凝胶丝可以用作提取的体积凝胶,喷雾或凝胶流加工成材料或装置,或者可以用作设备的丝凝胶涂层。 活性剂可以嵌入丝绸凝胶中用于各种医疗应用。 本发明还提供了制备粘性丝pH凝胶的方法和组合物。 例如,该方法包括降低丝素蛋白溶液的pH值以增加丝素蛋白溶液的体积或局部质子浓度,由此形成粘性丝凝胶。

    Methods of making drawn silk fibers
    3.
    发明授权
    Methods of making drawn silk fibers 有权
    制作拉丝丝纤维的方法

    公开(公告)号:US09074302B2

    公开(公告)日:2015-07-07

    申请号:US13498722

    申请日:2010-09-28

    摘要: The present invention relates to compositions and method for drawing egel silk fibroin fibers. The resulting fibers can transmit light and hence can be used as optical fiber. Silk fibroin fiber is produced by a method comprising applying an electric field to a solubilized silk fibroin solution to create a silk fibroin gel; converting the silk fibroin gel to a viscous silk liquid; and drawing a silk fiber from the viscous silk liquid. The silk fiber of the invention can be used in materials such as textile, medical sutures, and tissue materials, as well as conferring optical properties into these materials.

    摘要翻译: 本发明涉及丝绒丝素纤维的组合物和方法。 所得到的纤维可以透射光,因此可以用作光纤。 丝素蛋白纤维通过包括向溶解的丝素蛋白溶液施加电场以产生丝素蛋白凝胶的方法产生; 将丝素蛋白凝胶转化为粘稠的丝液; 并从粘性丝液中抽出丝纤维。 本发明的丝纤维可以用于纺织品,医用缝合线和组织材料等材料,并且可以赋予这些材料光学特性。

    DRAWN SILK EGEL FIBERS AND METHODS OF MAKING SAME
    5.
    发明申请
    DRAWN SILK EGEL FIBERS AND METHODS OF MAKING SAME 有权
    拉丝丝织物及其制造方法

    公开(公告)号:US20120244143A1

    公开(公告)日:2012-09-27

    申请号:US13498722

    申请日:2010-09-28

    摘要: The present invention relates to compositions and method for drawing egel silk fibroin fibers. The resulting fibers can transmit light and hence can be used as optical fiber. Silk fibroin fiber is produced by a method comprising applying an electric field to a solubilized silk fibroin solution to create a silk fibroin gel; converting the silk fibroin gel to a viscous silk liquid; and drawing a silk fiber from the viscous silk liquid. The silk fiber of the invention can be used in materials such as textile, medical sutures, and tissue materials, as well as conferring optical properties into these materials.

    摘要翻译: 本发明涉及丝绒丝素纤维的组合物和方法。 所得到的纤维可以透射光,因此可以用作光纤。 丝素蛋白纤维通过包括向溶解的丝素蛋白溶液施加电场以产生丝素蛋白凝胶的方法产生; 将丝素蛋白凝胶转化为粘稠的丝液; 并从粘性丝液中抽出丝纤维。 本发明的丝纤维可以用于纺织品,医用缝合线和组织材料等材料,并且可以赋予这些材料光学特性。

    VORTEX-INDUCED SILK FIBROIN GELATION FOR ENCAPSULATION AND DELIVERY
    8.
    发明申请
    VORTEX-INDUCED SILK FIBROIN GELATION FOR ENCAPSULATION AND DELIVERY 审中-公开
    VORTEX诱导的丝状纤维素凝胶用于包扎和递送

    公开(公告)号:US20120070427A1

    公开(公告)日:2012-03-22

    申请号:US13320036

    申请日:2010-06-01

    摘要: The present invention provided for a novel process of forming silk fibroin gels, and controlling the rate of β-sheet formation and resulting hydrogelation kinetics, by vortex treatment of silk fibroin solution. In addition, the vortex treatment of the present invention provides a silk fibroin gel that may be reversibly shear-thinned, enabling the use of these approach for precise control of silk self-assembly, both spatially and temporally. Active agents, including biological materials, viable cells or therapeutic agents, can be encapsulated in the hydrogels formed from the processes, and be used as delivery vehicles. Hence, the present invention provide for methods for silk fibroin gelation that are useful for biotechnological applications such as encapsulation and delivery of active agents, cells, and bioactive molecules.

    摘要翻译: 本发明提供了一种形成丝素蛋白凝胶的新方法,并且通过涡旋处理丝素蛋白溶液来控制成型速率和形成的水凝胶化动力学。 此外,本发明的涡流处理提供了可逆地剪切变薄的丝素蛋白凝胶,使得能够在空间和时间上精确地控制丝自组装的这些方法。 包括生物材料,活细胞或治疗剂在内的活性剂可以包封在由该方法形成的水凝胶中,并用作递送载体。 因此,本发明提供丝素蛋白凝胶化方法,其可用于生物技术应用如活性剂,细胞和生物活性分子的包封和递送。