Comparative of fibroblast and osteoblast cells adhesion on surface modified nanofibrous substrates based on polycaprolactone

Progress in Biomaterials - Tập 5 - Trang 213-222 - 2016
Fereshteh Sharifi1, Shiva Irani1, Mojgan Zandi2, Masoud Soleimani3, Seyed Mohammad Atyabi4
1Department of Biology, School of Basic Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran
2Department of Biomaterials, Iran Polymer and Petrochemical Institute, Tehran, Iran
3Department of Hematology, Faculty of Medical Science, Tarbiat Moddares University, Tehran, Iran
4Department of Pilot Biotechnology, Pasteur Institute of Iran, Tehran, Iran

Tóm tắt

One of the determinant factors for successful bioengineering is to achieve appropriate nano-topography and three-dimensional substrate. In this research, polycaprolactone (PCL) nano-fibrous mat with different roughness modified with O2 plasma was fabricated via electrospinning. The purpose of this study was to evaluate the effect of plasma modification along with surface nano-topography of mats on the quality of human fibroblast (HDFs) and osteoblast cells (OSTs)-substrate interaction. Surface properties were studied using scanning electron microscopy (SEM), atomic force microscopy (AFM), contact angle, Fourier-transformation infrared spectroscopy. We evaluated mechanical properties of fabricated mats by tensile test. The viability and proliferation of HDFs and OSTs on the substrates were followed by 3-[4, 5-dimethylthiazol-2-yl]-2, 5-diphenyltetrazolium bromide (MTT). Mineralization of the substrate was determined by alizarin red staining method and calcium content of OSTs was determined by calcium content kit. Cells morphology was studied by SEM analysis. The results revealed that the plasma-treated electrospun nano-fibrous substrate with higher roughness was an excellent designed substrate. A bioactive topography for stimulating proliferation of HDFs and OSTs is to accelerate the latter’s differentiation time. Therefore, the PCL substrate with high density and major nano-topography were considered as a bio-functional and elegant bio-substrate for tissue regeneration applications.

Tài liệu tham khảo

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