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Effects of PLGA nanofibrous scaffolds structure on nerve cell directional proliferation and morphology

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Abstract

Electrospinning has been recognized as an efficient technique for the fabrication of neural tissue engineering scaffolds. Many approaches have been developed on material optimization, electrospinning techniques, and physical properties of scaffolds to produce a suitable scaffold for tissue engineering aspects. In this study, structural properties of scaffolds were promoted by controlling the speed of fiber collection without any post-processing. PLGA scaffolds, in two significantly different solution concentrations, were fabricated by the electrospinning process to produce scaffolds with the optimum nerve cell growth in a desired direction. The minimum, intermediate and maximum rate of fiber collection (0.4, 2.4, 4.8 m/s) formed Random, Aligned and Drown-aligned fibers, with various porosities and hydrophilicities. The scaffolds were characterized by fiber diameter, porosity, water contact angle and morphology. Human nerve cells were cultured on fiber substrates for seven days to study the effects of different scaffold structures on cell morphology and proliferation, simultaneously. The results of MTT assay, the morphology of cells and scaffold characterization recommend that the best structure to promote cell direction, morphology and proliferation is accessible in an optimized hydrophilicity and porosity of scaffolds, which was obtained at the collector linear speed of 2.4 m/s.

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Authors and Affiliations

  1. Department of Textile Engineering, Textile Research and Excellence Centers, Amirkabir University of Technology, Tehran, 15875-44134, Iran

    Fatemeh Zamani, Masoud Latifi & Mohammad Amani-Tehran

  2. National Cell Bank, Pasteur Institute of Iran, Tehran, 13164, Iran

    Mohammad Ali Shokrgozar

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

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Zamani, F., Latifi, M., Amani-Tehran, M. et al. Effects of PLGA nanofibrous scaffolds structure on nerve cell directional proliferation and morphology. Fibers Polym 14, 698–702 (2013). https://doi.org/10.1007/s12221-013-0698-y

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  • DOI: https://doi.org/10.1007/s12221-013-0698-y

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