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The influence of surface nanoroughness of electrospun PLGA nanofibrous scaffold on nerve cell adhesion and proliferation

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Abstract

Electrospun nanofibrous scaffolds in neural tissue engineering provide an alternative approach for neural regeneration. Since the topography of a surface affects the microscopic behaviour of material; the creation of nanoscale surface features, which mimic the natural roughness of live tissue, on polymer surfaces can promote an appropriate cell growth and proliferation. In this research, a unique PLGA nanofibrous structure was fabricated without any post-electrospinning treatment. Scaffolds were prepared in two general groups: cylindrical and ribbon-shaped electrospun fibres, with smooth and rough (porous and grooved) surfaces. The experiments about nerve cell culture have demonstrated that the nanoroughness of PLGA electrospun scaffolds can increase the cell growing rate to 50 % in comparison with smooth and conventional electrospun scaffolds. SEM and AFM images and MTT assay results have shown that the roughened cylindrical scaffolds enhance the nerve growth and proliferation compared to smooth and ribbon-shaped nanofibrous scaffolds. A linear interaction has been found between cell proliferation and surface features. This helps to approximate MTT assay results by roughness parameters.

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Authors and Affiliations

  1. Department of Textile Engineering, Textile Research and Excellence Centers, Amirkabir University of Technology, Tehran, Iran

    Fatemeh Zamani, Mohammad Amani-Tehran & Masoud Latifi

  2. National Cell Bank, Pasteur Institute of Iran, Tehran, Iran

    Mohammad Ali Shokrgozar

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  1. Fatemeh Zamani
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  2. Mohammad Amani-Tehran
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  3. Masoud Latifi
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  4. Mohammad Ali Shokrgozar
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Correspondence to Masoud Latifi.

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Zamani, F., Amani-Tehran, M., Latifi, M. et al. The influence of surface nanoroughness of electrospun PLGA nanofibrous scaffold on nerve cell adhesion and proliferation. J Mater Sci: Mater Med 24, 1551–1560 (2013). https://doi.org/10.1007/s10856-013-4905-6

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