کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5439691 | 1509880 | 2017 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrospun PCL/GO-g-PEG structures: Processing-morphology-properties relationships
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Polycaprolactone (PCL) biocomposite nanofiber scaffolds with different concentrations of graphene oxide (GO) and GO surface grafted with poly(ethylene glycol) (GO-g-PEG) were prepared by electrospinning. Morphological, mechanical as well as wettability characterizations of electrospun nanofibers were carried out. Results showed that the average diameter of PLA/GO electrospun nanofibers decreased upon increasing the filler content. Differently, the diameter increased while using GO-g-PEG. Both nanofillers enhanced the electrospun PCL hydrophilicity even if PCL/GO-g-PEG samples exhibited improved wettability. The Young moduli of the composite nanofiber mats were improved by adding GO, and it was further enhanced when GO was surface grafted with PEG, in particular at low concentrations. This suggests the improved dispersion of GO-g-PEG due to the surface grafting with PEG. Furthermore, in order to assess the potential applications of the electrospun nanofibers in tissue engineering, MC3T3-E1 cells were cultured on PCL and PCL/GO-g-PEG scaffolds, thus providing preliminary and comparative proliferation rate assays.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part A: Applied Science and Manufacturing - Volume 92, January 2017, Pages 97-107
Journal: Composites Part A: Applied Science and Manufacturing - Volume 92, January 2017, Pages 97-107
نویسندگان
Roberto Scaffaro, Francesco Lopresti, Andrea Maio, Luigi Botta, Salvatrice Rigogliuso, Giulio Ghersi,