COMPOSITIONS AND METHODS FOR TEMPLATING THREE-DIMENSIONAL MINERALIZATION
    4.
    发明申请
    COMPOSITIONS AND METHODS FOR TEMPLATING THREE-DIMENSIONAL MINERALIZATION 审中-公开
    用于三维矿化的组合物和方法

    公开(公告)号:US20150335790A1

    公开(公告)日:2015-11-26

    申请号:US14652636

    申请日:2013-12-13

    IPC分类号: A61L27/46 A61L27/58 A61L27/38

    摘要: The invention provides novel compositions and methods for three-dimensional mineralization templated by synthetic scaffolds having zwitterionic mediators. The invention enables 3-D mineralization nucleation and growth of minerals in a well-controlled and defined manner. The composite materials prepared by the disclosed methods are cytocompatible and/or biodegradable and are suitable for use as medical implants in a variety of applications in skeletal tissue repair and regeneration. For example, cytocompatible zwitterionic sulfobetaine ligands are employed to facilitate 3-D mineralization of HA across covalently crosslinked hydrogels. The overall charge-neutral zwitterionic hydrogel effectively recruited oppositely charged precursor ions while overcame excessive swelling exhibited by anionic and cationic hydrogels under physiological conditions, resulting in denser and structurally well-integrated mineralized composite materials.

    摘要翻译: 本发明提供了由具有两性离子介体的合成支架模板化的三维矿化的新型组合物和方法。 本发明能够以良好控制和限定的方式实现三维矿化成核和矿物生长。 通过公开的方法制备的复合材料是细胞相容性和/或可生物降解的,并且适合用作骨骼组织修复和再生中各种应用中的医学植入物。 例如,使用细胞相容的两性离子磺基甜菜碱配体来促进HA通过共价交联的水凝胶的3-D矿化。 总体电荷中性两性离子水凝胶在生理条件下有效地引入相反电荷的前体离子,同时克服了阴离子和阳离子水凝胶表现出的过度溶胀,导致更致密和结构完全一体化的矿化复合材料。

    THERMAL RESPONSIVE POLYMER SILOXANES, COMPOSITIONS, AND METHOD AND APPLICATIONS RELATED THERETO
    5.
    发明申请
    THERMAL RESPONSIVE POLYMER SILOXANES, COMPOSITIONS, AND METHOD AND APPLICATIONS RELATED THERETO 审中-公开
    热反应性聚合物硅氧烷,组合物及其相关方法及应用

    公开(公告)号:US20140255333A1

    公开(公告)日:2014-09-11

    申请号:US14286834

    申请日:2014-05-23

    发明人: Jie Song Jianwen Xu

    IPC分类号: A61L27/18 A61L27/50

    摘要: The invention relates to materials comprising siloxanes, preferably the materials have thermal-responsive properties. In some embodiments, the invention relates to silsesquioxane groups functionalized with polymers. In another embodiment, silsequioxane-polymer conjugates comprise polylactone segments. The silsequioxane-polymer conjugates may be crosslinked together to form a material, and these materials may be functionalized with bioactive compounds so that the materials have desirable biocompatibility or bioactivity when used in medical devices. In further embodiments, the invention relates to composite materials that contain a polymer matrix and aggregates, and in some embodiments, methods of making, and methods of using these materials. Preferably, the aggregates are calcium phosphate aggregates. Preferably, the material is resistant to fracture. In further embodiments, the materials are used in surgical procedures of bone replacement. In further embodiments, the materials contain polyhedral silsesquioxanes and/or biodegradable segments.

    摘要翻译: 本发明涉及包含硅氧烷的材料,优选该材料具有热响应特性。 在一些实施方案中,本发明涉及用聚合物官能化的倍半硅氧烷基团。 在另一个实施方案中,硅二恶烷 - 聚合物共轭物包含聚内酯片段。 硅氧烷 - 聚合物共轭物可以一起交联以形成材料,并且这些材料可以用生物活性化合物官能化,使得当用于医疗装置时,这些材料具有期望的生物相容性或生物活性。 在另外的实施方案中,本发明涉及包含聚合物基质和聚集体的复合材料,并且在一些实施方案中涉及制备方法和使用这些材料的方法。 优选地,聚集体是磷酸钙聚集体。 优选地,该材料耐断裂。 在另外的实施方案中,所述材料用于骨置换的外科手术中。 在另外的实施方案中,材料含有多面体倍半硅氧烷和/或可生物降解的片段。

    THERMAL-RESPONSIVE POLYMER NETWORKS, COMPOSITIONS, AND METHODS AND APPLICATIONS RELATED THERETO
    8.
    发明申请
    THERMAL-RESPONSIVE POLYMER NETWORKS, COMPOSITIONS, AND METHODS AND APPLICATIONS RELATED THERETO 审中-公开
    热响应聚合物网络,组合物及其相关方法和应用

    公开(公告)号:US20140357806A1

    公开(公告)日:2014-12-04

    申请号:US14058336

    申请日:2013-10-21

    发明人: Jie Song Jianwen Xu

    IPC分类号: C08G63/91

    摘要: The invention relates to materials comprising polymer network containing siloxanes or organic-based core structures, preferably the materials have thermal-responsive properties. In some embodiments, the invention relates to an organic core functionalized with polymers. In another embodiment, organic core-polymer conjugates comprise polylactone segments. The organic core-polymer conjugates may be crosslinked together to form a material, and these materials may be functionalized with bioactive compounds so that the materials have desirable biocompatibility or bioactivity when used in medical devices.

    摘要翻译: 本发明涉及包含含有硅氧烷或有机基核心结构的聚合物网络的材料,优选该材料具有热响应特性。 在一些实施方案中,本发明涉及用聚合物官能化的有机核。 在另一个实施方案中,有机核 - 聚合物缀合物包含聚内酯片段。 有机核 - 聚合物共轭物可以一起交联以形成材料,并且这些材料可以用生物活性化合物官能化,使得当用于医疗装置时,这些材料具有期望的生物相容性或生物活性。