Biocompatibility and biofilm inhibition of N,N-hexyl,methyl-polyethylenimine bonded to Boston Keratoprosthesis materials.

Biocompatibility and biofilm inhibition of N,N-hexyl,methyl-polyethylenimine bonded to Boston Keratoprosthesis materials.
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DOI:
10.1016/j.biomaterials.2011.08.010
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发表时间:
2011-12
期刊:
影响因子:
14
通讯作者:
Klibanov, Alexander M.
Klibanov, Alexander M.
中科院分区:
工程技术1区
文献类型:
--
作者:
Behlau, Irmgard;Mukherjee, Koushik;Todani, Amit;Tisdale, Ann S.;Cade, Fabiano;Wang, Liqiang;Leonard, Elizabeth M.;Zakka, Fouad R.;Gilmore, Michael S.;Jakobiec, Frederick A.;Dohlman, Claes H.;Klibanov, Alexander M.

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评价了N,N-己基甲基聚乙烯亚胺(HMPEI)与Boston人工角膜(B-KPro)材料共价连接后的生物相容性和抗菌性能。通过共聚焦显微镜和电子显微镜,我们观察到,HMPEI衍生的材料发挥抑制作用的生物膜形成的金黄色葡萄球菌临床分离株,相比,母体聚(甲基丙烯酸甲酯)(PMMA)和钛。在体外组织培养中,与对照PMMA相比,HMPEI涂层PMMA没有额外的角膜上皮细胞毒性。同样,在家兔体内基质内或前房植入后,与对照材料相比,未检测到HMPEI衍生的PMMA或钛的毒性或不良反应。
The biocompatibility and antibacterial properties of N,N-hexyl,methyl-polyethylenimine (HMPEI) covalently attached to the Boston Keratoprosthesis (B-KPro) materials was evaluated. By means of confocal and electron microscopies, we observed that HMPEI-derivatized materials exert an inhibitory effect on biofilm formation by Staphylococcus aureus clinical isolates, as compared to the parent poly(methyl methacrylate) (PMMA) and titanium. There was no additional corneal epithelial cell cytotoxicity of HMPEI-coated PMMA compared to that of control PMMA in tissue cultures in vitro. Likewise, no toxicity or adverse reactivity was detected with HMPEI-derivatized PMMA or titanium compared to those of the control materials after intrastromal or anterior chamber implantation in rabbits in vivo.
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