Biomed Mater:通过单/多官能化GO制备电纺PCL基支架以促进成骨

2019-05-11 不详 网络

在本研究中,研究人员将合成的可生物降解的聚合物聚(ε-己内酯)(PCL)和氧化石墨烯(GO)组合在一起,通过使用静电纺丝技术制备3D复合组织支架(PCL/GO支架)。此外,研究还探究了Gly-Arg-Gly-Asp-Ser-Pro(GRGDSP)和/或噻吩(Th)修饰的GO对复合PCL/GO垫(PCL / GO,PCL / GO-GRGDSP,PCL / GO--Th,PCL/GO-GRGDSP-

在本研究中,研究人员将合成的可生物降解的聚合物聚(ε-己内酯)(PCL)和氧化石墨烯(GO)组合在一起,通过使用静电纺丝技术制备3D复合组织支架(PCL/GO支架)。此外,研究还探究了Gly-Arg-Gly-Asp-Ser-Pro(GRGDSP)和/或噻吩(Th)修饰的GO对复合PCL/GO垫(PCL / GO,PCL / GO-GRGDSP,PCL / GO--Th,PCL/GO-GRGDSP-Th)的影响。

通过SEM,接触角测量,XPS,TGA,电导率测试,PBS吸收和收缩测试以及机械测试进行支架的特征检查。根据SEM图像,所有支架均显示出合适的无珠和均匀形态。通过添加GO,观察到PCL / GO支架具有更好的亲水性和轻微的CA降低(~5°)。通过将GO添加和良好分散到PCL基质中,机械性能得到了极大的增强。PCL和GO的掺入表现出增强的电导率,并且发现PCL / GO-GRGDSP-Th(2%)的最高值为15.06μS.cm-1。MG-63成骨细胞培养研究(MTT测定,ALP活性,茜素红染色,荧光和SEM分析)显示,由于GO和生物界面的性质,PCL / GO-GRGDSP-Th(1%)支架表现出最高的生物相容性(与纯PCL相比,MTT吸光度值为1.87倍)。

原始出处:

Basar AO, Sadhu V, Turkoglu Sasmazel H. Preparation of electrospun PCL-based scaffolds by mono/multi-functionalized GO. Biomed Mater. 2019 May 8. doi: 10.1088/1748-605X/ab2035.

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    2020-03-29 sunylz
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    2019-05-12 zhaojie88
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    2019-05-11 医者仁心5538

    学习了

    0

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    2019-05-11 龙胆草

    学习谢谢分享

    0

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    2019-05-11 1ddf0692m34(暂无匿称)

    学习了,长知识

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