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Structure and biocompatibility of ion beam modified polyethylene

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Abstract

Structural changes of polyethylene (PE), induced by irradiation with 40 keV Ar+ ions at a fluence of 1×1012–1×1015 cm-2, are characterized by different experimental methods and physical parameters of the modified PE are related to its biocompatibility. Production of oxidized structures and conjugated double bonds in the PE surface layer modified by the ion irradiation was proved using IR, UV-VIS spectroscopies and a Rutherford backscattering technique. The fusion of macrophages onto implants made of as-irradiated and chemically doped PE was studied in vivo. It was found that the free surface energy is not a decisive factor affecting the non-self-recognition of the modified PE by macrophages. The fusion of macrophages, however, was found to be different on the as-irradiated specimens and the specimens additionally doped with acrylic acid.

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Authors and Affiliations

  1. Department of Solid State Engineering, Institute of Chemical Technology, 166 28, Prague 6, Czech Republic

    V SVORCIK

  2. Institute of Nuclear Physics, Academy of Sciences of Czech Republic, 250 68, Rez, Czech Republic

    V RYBKA

  3. Department of Anatomy, First Faculty of Medicine, Charles University, 128 00, Prague 2, Czech Republic

    V HNATOWICZ  & K SMETANA JR

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  1. V SVORCIK
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  2. V RYBKA
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  3. V HNATOWICZ
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  4. K SMETANA JR
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SVORCIK , V., RYBKA , V., HNATOWICZ , V. et al. Structure and biocompatibility of ion beam modified polyethylene. Journal of Materials Science: Materials in Medicine 8, 435–440 (1997). https://doi.org/10.1023/A:1018509722748

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