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Iranian Polymer Journal

, Volume 23, Issue 3, pp 227–236 | Cite as

Growth of muscle cells on plasma-treated and gold nanoparticles-grafted polytetrafluoroethylene

  • A. ŘezníčkováEmail author
  • Z. Makajová
  • N. Slepičková Kasálková
  • Z. Kolská
  • L. Bačáková
  • V. Švorčík
Original Paper

Abstract

Polytetrafluoroethylene (PTFE) was modified by Ar plasma with different exposure times. The plasma-activated surface was immersed in biphenyldithiol and subsequently in colloidal solution of Au nanoparticles. The changes in the surface wettability contact angle were examined by goniometry. Atomic force microscopy was used to determine the surface roughness and morphology. Changes in the chemical structure of the modified PTFE were studied using X-ray photoelectron spectroscopy (XPS) and electrokinetic analysis. The interaction of plasma-treated and grafted samples with vascular smooth muscle cell derived from the rat aorta was also studied. Specifically, the number and morphology of the adhered and proliferated cells on the PTFE were studied under in vitro conditions. The plasma treatment and the subsequent biphenyldithiol and Au nanoparticles grafting led to changes in the polymer surface chemistry, morphology, roughness and wettability. The polymer grafting with biphenyl-4,4′-dithiol (BFD) and subsequently with Au nanoparticles led to a decrease in the surface polarity. XPS measurements proved the presence of S and Au on the PTFE surface. Grafting with BFD and Au nanoparticles led to the decrease in surface roughness. In comparison with the pristine polymer, the plasma treatment and Au nanoparticles grafting increased the adhesion and proliferation of vascular smooth muscle cell.

Keywords

Polytetrafluoroethylene (PTFE) Modification Nanoparticles Biocompatibility Atomic force microscopy (AFM) 

Notes

Acknowledgments

This work was supported by the GACR under project 108/12/G108.

Conflict of interest

We declare that there is no conflict of interest.

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Copyright information

© Iran Polymer and Petrochemical Institute 2014

Authors and Affiliations

  • A. Řezníčková
    • 1
    Email author
  • Z. Makajová
    • 1
  • N. Slepičková Kasálková
    • 1
  • Z. Kolská
    • 2
  • L. Bačáková
    • 3
  • V. Švorčík
    • 1
  1. 1.Department of Solid State EngineeringInstitute of Chemical Technology, PraguePrague 6Czech Republic
  2. 2.Faculty of ScienceJ.E. Purkyně UniversityUsti nad LabemCzech Republic
  3. 3.Institute of PhysiologyAcademy of Sciences of the Czech RepublicPragueCzech Republic

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