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Highly Extensible Bio-Nanocomposite Films with Direction-Dependent Properties

机译：具有方向相关特性的高度可扩展的生物纳米复合薄膜

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摘要

The structure and mechanical properties of bio-nanocomposite films made from poly(ethylene oxide) (PEO) that is physically cross-linked with silicate nanoparticles, Laponite, are investigated. Direction-dependent mechanical properties of the films are presented, and the effect of shear orientation during sample preparation on tensile strength and elongation is assessed. Repeated mechanical deformation results in highly extensible materials with preferred orientation and structuring at the nano- and micrometer scales. Additionally, in vitro biocompatibility data are reported, and NIH 3T3 fibroblasts are observed to readily adhere and proliferate on silicate cross-linked PEO while maintaining high cell viability.
机译：研究了由与硅酸盐纳米粒子Laponite物理交联的聚环氧乙烷（PEO）制成的生物纳米复合膜的结构和力学性能。介绍了薄膜的方向相关的机械性能，并评估了样品制备过程中剪切取向对拉伸强度和伸长率的影响。重复的机械变形会产生高度可扩展的材料，并在纳米和微米尺度上具有较好的方向和结构。另外，据报道有体外生物相容性数据，观察到NIH 3T3成纤维细胞易于粘附并在硅酸盐交联的PEO上增殖，同时保持高细胞活力。

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  • 来源
    《Advanced Functional Materials》 |2010年第3期|429-436|共8页
  • 作者

    Akhilesh K. Gaharwar; Patrick Schexnailder; Vikas Kaul; Ozan Akkus; Dmitri Zakharov; Soenke Seifert; Gudrun Schmidt;

  • 作者单位

    Purdue University Weldon School of Biomedical Engineering West Lafayette, IN, 47907 (USA);

    Purdue University Weldon School of Biomedical Engineering West Lafayette, IN, 47907 (USA);

    Purdue University Weldon School of Biomedical Engineering West Lafayette, IN, 47907 (USA);

    Purdue University Weldon School of Biomedical Engineering West Lafayette, IN, 47907 (USA);

    Purdue University Birck Nanotechnology Center West Lafayette, IN, 47907 (USA);

    Advanced Photon Source Argonne National Laboratory Argonne, IL, 60439 (USA);

    Purdue University Weldon School of Biomedical Engineering West Lafayette, IN, 47907 (USA);

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