NOVEL BACTERIOSTATIC AND ANTI-COLLAGENOLYTIC DENTAL MATERIALS THROUGH THE INCORPORATION OF POLYACRYLIC ACID MODIFIED CuQ NANOPARTICLES
    95.
    发明申请
    NOVEL BACTERIOSTATIC AND ANTI-COLLAGENOLYTIC DENTAL MATERIALS THROUGH THE INCORPORATION OF POLYACRYLIC ACID MODIFIED CuQ NANOPARTICLES 有权
    通过加入聚丙烯酸改性的CuQ纳米粒子制备新型的生物和抗菌胶原物质

    公开(公告)号:US20140037705A1

    公开(公告)日:2014-02-06

    申请号:US13900942

    申请日:2013-05-23

    Abstract: Provided are antibacterial and antimicrobial surface coatings and dental materials by utilizing the antimicrobial properties of copper chalcogenide and/or copper halide (CuQ, where Q=chalcogens including oxygen, or halogens, or nothing). An antimicrobial barrier is created by incorporation of CuQ nanoparticles of an appropriate size and at a concentration necessary and sufficient to create a unique bioelectrical environment. The unique bioelectrical environment results in biocidal effectiveness through a multi-factorial mechanism comprising a combination of the intrinsic quantum flux of copper (Cu0, Cu1+, Cu2+) ions and the high surface-to-volume electron sink facilitated by the nanoparticle. The result is the constant quantum flux of copper which manifests and establishes the antimicrobial environment preventing or inhibiting the growth of bacteria. The presence of CuQ results in inhibiting or delaying bacterial destruction and endogenous enzymatic breakdown of the zone of resin inter-diffusion, the integrity of which is essential for dental restoration longevity.

    Abstract translation: 通过利用铜硫属化物和/或铜卤化物(CuQ,其中Q =包括氧或卤素的硫属元素,或任何物质)的抗微生物性质,提供抗菌和抗微生物表面涂层和牙科材料。 通过掺入适当尺寸的CuQ纳米颗粒并以必要和足够的浓度产生独特的生物电气环境来产生抗微生物屏障。 独特的生物电气环境通过包含铜(CuO,Cu1 +,Cu2 +)的固有量子通量和由纳米颗粒促进的高表面 - 体积电子吸收的组合的多因素机制产生杀生物效果。 结果是铜的恒定量子通量显示并建立了防止或抑制细菌生长的抗微生物环境。 CuQ的存在导致抑制或延迟细菌破坏和树脂互扩散区域的内源性酶分解,其完整性对于牙齿修复寿命至关重要。

    SELF-ASSEMBLING CELL AGGREGATES AND METHODS OF MAKING ENGINEERED TISSUE USING THE SAME
    100.
    发明申请
    SELF-ASSEMBLING CELL AGGREGATES AND METHODS OF MAKING ENGINEERED TISSUE USING THE SAME 有权
    自组装细胞聚集体及使用该方法制备工程组织的方法

    公开(公告)号:US20120288938A1

    公开(公告)日:2012-11-15

    申请号:US13529172

    申请日:2012-06-21

    Abstract: A composition comprising a plurality of cell aggregates for use in producing engineered organotypic tissue by organ printing. A method of making a plurality of cell aggregates comprises centrifuging a cell suspension, extruding the resulting pellet through an orifice, and cutting the extruded pellet into pieces. Apparatus for making cell aggregates comprises an extrusion system and a cutting system. In a method of organ printing, a plurality of cell aggregates are embedded in a polymeric or gel matrix and allowed to fuse to form a desired three-dimensional tissue structure. An intermediate product comprises at least one layer of matrix and a plurality of cell aggregates embedded therein in a predetermined pattern. Modeling methods predict the structural evolution of fusing cell aggregates for combinations of cell type, matrix, and embedding patterns to enable selection of organ printing process parameters for use in producing an engineered tissue having a desired three-dimensional structure.

    Abstract translation: 一种组合物,其包含用于通过器官印刷生产工程化器官组织的多个细胞聚集体。 制备多个细胞聚集体的方法包括离心细胞悬浮液,通过孔口挤出所得颗粒,并将挤出的颗粒切割成块。 用于制造细胞聚集体的装置包括挤出系统和切割系统。 在器官印刷的方法中,将多个细胞聚集体嵌入聚合物或凝胶基质中并使其融合以形成所需的三维组织结构。 中间产品包含至少一层矩阵和以预定图案嵌入其中的多个细胞聚集体。 建模方法预测用于细胞类型,基质和嵌入图案组合的融合细胞聚集体的结构演变,以便能够选择用于生产具有所需三维结构的工程组织的器官印刷工艺参数。

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