NANOSTRUCTURED MATERIAL FORMULATED WITH BONE CEMENT FOR EFFECTIVE ANTIBIOTIC DELIVERY
    1.
    发明申请
    NANOSTRUCTURED MATERIAL FORMULATED WITH BONE CEMENT FOR EFFECTIVE ANTIBIOTIC DELIVERY 有权
    用骨水泥制备的纳米结构材料,用于有效的抗生素递送

    公开(公告)号:US20120308633A1

    公开(公告)日:2012-12-06

    申请号:US13486382

    申请日:2012-06-01

    摘要: This invention uses mesoporous silica nanoparticles and other nanostructured materials to formulate polyacrylate-based bone cement for achieving an enhanced and controlled elution of active ingredients such as antibiotics. This invention overcomes the limitation of low antibiotic release from commercial polyacrylate-based bone cements using for example, PMMA. In certain aspects, the formulation enables a sustained release of antibiotics from the bone cement over a period of 80 days and achieves 70% of total drug release, whereas the commercial antibiotic bone cement (e.g., SmartSet GHV) only releases about 5% of the antibiotics on the first day and subsequently an almost negligible amount. In addition, the mechanical properties of our formulated bone cements are well retained. The inventive bone cement exhibits good antibacterial properties and has very low cytotoxicity to mouse fibroblast cells.

    摘要翻译: 本发明使用介孔二氧化硅纳米粒子和其他纳米结构材料配制基于聚丙烯酸酯的骨水泥,以实现活性成分如抗生素的增强和受控的洗脱。 本发明克服了使用例如PMMA的商业聚丙烯酸酯基骨水泥的低抗生素释放的限制。 在某些方面,该制剂能够在80天的时间内从骨水泥中持续释放抗生素,并达到总药物释放的70%,而商业抗生素骨水泥(例如,SmartSet GHV)仅释放约5% 抗生素在第一天,其后几乎可以忽略不计。 此外,我们配制的骨水泥的机械​​性能得到很好的保留。 本发明的骨水泥具有良好的抗菌性能,对小鼠成纤维细胞具有非常低的细胞毒性。

    Nanostructured material formulated with bone cement for effective antibiotic delivery
    2.
    发明授权
    Nanostructured material formulated with bone cement for effective antibiotic delivery 有权
    用骨水泥配制的纳米结构材料用于有效的抗生素递送

    公开(公告)号:US09155814B2

    公开(公告)日:2015-10-13

    申请号:US13486382

    申请日:2012-06-01

    摘要: This invention uses mesoporous silica nanoparticles and other nanostructured materials to formulate polyacrylate-based bone cement for achieving an enhanced and controlled elution of active ingredients such as antibiotics. This invention overcomes the limitation of low antibiotic release from commercial polyacrylate-based bone cements using for example, PMMA. In certain aspects, the formulation enables a sustained release of antibiotics from the bone cement over a period of 80 days and achieves 70% of total drug release, whereas the commercial antibiotic bone cement (e.g., SmartSet GHV) only releases about 5% of the antibiotics on the first day and subsequently an almost negligible amount. In addition, the mechanical properties of our formulated bone cements are well retained. The inventive bone cement exhibits good antibacterial properties and has very low cytotoxicity to mouse fibroblast cells.

    摘要翻译: 本发明使用介孔二氧化硅纳米粒子和其他纳米结构材料配制基于聚丙烯酸酯的骨水泥,以实现活性成分如抗生素的增强和受控的洗脱。 本发明克服了使用例如PMMA的商业聚丙烯酸酯基骨水泥的低抗生素释放的限制。 在某些方面,该制剂能够在80天的时间内从骨水泥中持续释放抗生素,并达到总药物释放的70%,而商业抗生素骨水泥(例如,SmartSet GHV)仅释放约5% 抗生素在第一天,其后几乎可以忽略不计。 此外,我们配制的骨水泥的机械​​性能得到很好的保留。 本发明的骨水泥具有良好的抗菌性能,对小鼠成纤维细胞具有非常低的细胞毒性。