SILK FIBROIN-BASED MICRONEEDLES AND METHODS OF MAKING THE SAME
    12.
    发明申请
    SILK FIBROIN-BASED MICRONEEDLES AND METHODS OF MAKING THE SAME 审中-公开
    基于丝基纤维素的麦克风及其制备方法

    公开(公告)号:US20130338632A1

    公开(公告)日:2013-12-19

    申请号:US13880592

    申请日:2011-10-19

    IPC分类号: A61L31/12 A61M37/00

    摘要: A microneedle or microneedle device includes a microneedle body extending from a base to a penetrating tip formed from a silk fibroin based material, which is easy to fabricate and highly biocompatible. The microneedle device can include one or more microneedles mounted to a substrate. The silk fibroin can include active agents to be transported into or across biological barriers such as skin, tissue and cell membranes. The silk fibroin microneedles can be fully or partially biodegradable and/or bioerodible. The silk fibroin is highly stable, affords room temperature storage and is implantable. The silk fibroin structure can be modulated to control the rate of active agent delivery.

    摘要翻译: 微针或微针装置包括从基部延伸到由丝素蛋白基材料形成的穿透尖端的微针体,其易于制造和高度生物相容性。 微针装置可以包括安装到基底的一个或多个微针。 丝素蛋白可以包括被运送到生物屏障如皮肤,组织和细胞膜之中或之上的活性剂。 丝素蛋白微针可以全部或部分生物降解和/或生物侵蚀。 丝素蛋白高度稳定,提供室温储存并可植入。 可以调节丝素蛋白结构以控制活性剂递送的速率。

    Biopolymer sensor and method of manufacturing the same
    13.
    发明授权
    Biopolymer sensor and method of manufacturing the same 有权
    生物聚合物传感器及其制造方法

    公开(公告)号:US08529835B2

    公开(公告)日:2013-09-10

    申请号:US12513441

    申请日:2007-11-05

    IPC分类号: C12Q1/68

    CPC分类号: B29D11/0074 B29C41/02

    摘要: A method of manufacturing a biopolymer sensor including providing a biopolymer, processing the biopolymer to yield a biopolymer matrix solution, adding a biological material in the biopolymer matrix, providing a substrate, casting the matrix solution on the substrate, and drying the biopolymer matrix solution to form a solidified biopolymer sensor on the substrate. A biopolymer sensor is also provided that includes a solidified biopolymer film with an embedded biological material.

    摘要翻译: 一种制备生物聚合物传感器的方法,包括提供生物聚合物,处理生物聚合物以产生生物聚合物基质溶液,在生物聚合物基质中添加生物材料,提供基材,将基质溶液浇铸在基材上,并将生物聚合物基质溶液干燥 在基材上形成凝固的生物聚合物传感器。 还提供了一种生物聚合物传感器,其包括具有嵌入的生物材料的固化的生物聚合物膜。

    pH-induced silk gels and uses thereof
    14.
    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。

    VORTEX-INDUCED SILK FIBROIN GELATION FOR ENCAPSULATION AND DELIVERY
    16.
    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。

    pH INDUCED SILK GELS AND USES THEREOF
    20.
    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。