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Novel membranes and surface modification able to activate specific cellular responses.

机译:新型膜和表面修饰能够激活特定的细胞反应。

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摘要

The design of new polymeric biomaterials together with new strategies to modify membrane surface are crucial to optimise cell-biomaterial interactions in vivo and in vitro biohybrid systems. In this study we report on the novel semipermeable membranes synthesised from a polymeric blend of modified polyetheretherketone and polyurethane able to support the long-term maintenance and differentiation of human liver cells and on the surface modification of polyethersulfone membranes by plasma polymerisation of acrylic acid monomers and by immobilization of arginine-glycine-aspartic acid (RGD) peptide through a hydrophilic "spacer arm" molecule. The performance of the modified and unmodified membranes was tested by evaluation of the liver function expression of primary human hepatocytes in terms of albumin production, protein secretion and drug biotransformation.
机译:新的聚合生物材料的设计以及修饰膜表面的新策略对于优化体内和体外生物杂交系统中的细胞生物材料相互作用至关重要。在这项研究中,我们报道了由改性聚醚醚酮和聚氨酯的聚合物共混物合成的新型半透膜,能够支持人类肝细胞的长期维持和分化,并报道了通过丙烯酸单体的等离子聚合对聚醚砜膜进行表面改性。通过亲水性“间隔臂”分子固定精氨酸-甘氨酸-天冬氨酸(RGD)肽。通过评估白蛋白产生,蛋白质分泌和药物生物转化方面原代人肝细胞的肝功能表达来测试修饰膜和未修饰膜的性能。

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