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CNT Incorporated Polyacrilonitrile/Polypyrrole Nanofibers as Keratinocytes Scaffold

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Abstract:

Polypyrrole (PPy) is an attractive scaffold material for tissue engineering with its non-toxic and electrically conductive properties. There has not been enough information about PPy usage in skin tissue engineering. The aim of this study is to investigate biocompatibility of polyacrilonitrile (PAN)/PPy nanofibrous scaffold for human keratinocytes. PAN/PPy bicomponent nanofibers were prepared by electrospinning, in various PPy concentrations and with carbon nanotube (CNT) incorporation. The average diameter of electrospun nanofibers decreased with increasing PPy concentration. Further, agglomerated CNTs caused beads and disordered parts on the surface of nanofibers. Biocompatibility of these PAN/PPy and PAN/PPy/CNT scaffolds were analyzed in vitro. Both scaffolds provided adhesion and proliferation of keratinocytes. Nanofiber diameter did not significantly influence the morphology of cells. However, with increasing number of cells, cells stayed among nanofibers and this affected their shape and size. In this study, we demonstrated that PAN/PPy and PAN/PPy/CNT scaffolds enabled the growth of keratinocytes, showing their biocompatibility.

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Journal of Biomimetics, Biomaterials and Biomedical Engineering Vol. 41 View Preview

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Periodical:

Journal of Biomimetics, Biomaterials and Biomedical Engineering (Volume 41)

Pages:

69-81

DOI:

https://doi.org/10.4028/www.scientific.net/JBBBE.41.69

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Online since:

April 2019

Authors:

Atike Ince Yardimci*, Hande Aypek, Ozgur Ozturk, Selahattin Yilmaz, Engin Ozcivici, Gulistan Mese, Yusuf Selamet

Keywords:

Biocompatibility, Carbon Nanotube (CNT), Electrospinning, Keratinocyte, Polypyrrole

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© 2019 Trans Tech Publications Ltd. All Rights Reserved

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