pH INDUCED SILK GELS AND USES THEREOF
    31.
    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。

    3-DIMENSIONAL SILK HYDROXYAPATITE COMPOSITIONS
    34.
    发明申请
    3-DIMENSIONAL SILK HYDROXYAPATITE COMPOSITIONS 有权
    三维丝素羟基磷酸酯组合物

    公开(公告)号:US20110046686A1

    公开(公告)日:2011-02-24

    申请号:US12866256

    申请日:2009-02-06

    摘要: Described herein are methods and compositions comprising a mixture of silk polymer and hydroxyapatite. The methods described herein can be used to prepare a mixture of silk polymer and hydroxyapatite and further provide mixtures that can be molded into a desired shape. Also encompassed herein are compositions comprising a mixture of silk polymer and hydroxyapatite having a desired shape, which can further be implanted, for example, to facilitate bone healing or tooth structure or support. Such compositions can also include agents, such as therapeutic agents, or cells.

    摘要翻译: 本文描述了包含丝聚合物和羟基磷灰石的混合物的方法和组合物。 本文所述的方法可用于制备丝聚合物和羟基磷灰石的混合物,并进一步提供可模塑成所需形状的混合物。 本文还包括包含丝状聚合物和具有所需形状的羟基磷灰石的混合物的组合物,其可以进一步植入,例如以促进骨愈合或牙齿结构或支撑。 这样的组合物还可以包括试剂,例如治疗剂或细胞。

    BIOPOLYMER SENSOR AND METHOD OF MANUFACTURING THE SAME
    38.
    发明申请
    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:US20100070068A1

    公开(公告)日:2010-03-18

    申请号:US12513441

    申请日:2007-11-05

    IPC分类号: G06F19/00

    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。

    Method for Producing Biomaterial Scaffolds
    40.
    发明申请
    Method for Producing Biomaterial Scaffolds 审中-公开
    生物材料支架的生产方法

    公开(公告)号:US20080280360A1

    公开(公告)日:2008-11-13

    申请号:US11664234

    申请日:2005-10-12

    IPC分类号: C12N5/00

    摘要: The present invention provides a multilayer scaffold for tissue engineering. The scaffold comprises at least a first layer comprised of a polymer having a pattern of microchannels therein; and at least a second layer comprised of a polymer having a pattern of microchannels therein. The first and second layers are joined together (preferably by lamination) and the channels are connected for the circulation of fluid through the layers. The scaffold is coated with bacterial cellulose. The scaffold may further include a mammalian cell.

    摘要翻译: 本发明提供了用于组织工程的多层支架。 所述支架至少包括由其中具有微通道图案的聚合物构成的第一层; 以及至少第二层,其中包含其中具有微通道图案的聚合物。 第一层和第二层连接在一起(优选通过层压),并且通道被连接以使流体循环通过层。 支架用细菌纤维素包被。 支架还可包括哺乳动物细胞。