This article is cited in 11 papers

Polymers

A comparative study of the structure and cytotoxicity of polytetrafluoroethylene after ion etching and ion implantation

D. V. Shtansky^a, N. A. Glushankova^b, Ph. V. Kiryukhantsev-Korneev^a, A. N. Sheveiko^a, A. A. Sigarev<sup>c

a</sup> National University of Science and Technology «MISIS», Moscow
^b N. N. Blokhin Cancer Research Center, Russian Academy of Medical Sciences, Moscow
^c Moscow Institute of Physics and Technology (State University), Dolgoprudny, Moscow region

Abstract: The ion-plasma treatment has been widely used for modifying the surface structure of polymers in order to improve their properties, but it can lead to destruction of the surface and, as a consequence, to an increase in their toxicity. A comparative study of the structure and cytotoxicity of polytetrafluoroethylene (PTFE) after the ion etching (IE) and ion implantation (II) for 10 min with energy densities of 363 and 226 J/cm$^2$, respectively, has been performed. It has been shown that, unlike the ion implantation, the ion etching results in the destruction of the polymer and in the appearance of the cytotoxicity. The factors responsible for this effect, which are associated with the bulk and surface treatment, as well as with the influence of the temperature, have been discussed.

Received: 31.05.2010
Accepted: 15.07.2010

 English version: Physics of the Solid State, 2011, 53:3, 638–642

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