Hostname: page-component-586b7cd67f-gb8f7 Total loading time: 0 Render date: 2024-11-23T12:22:20.067Z Has data issue: false hasContentIssue false
  • English
  • Français

Anti-bacterial property of Hydrogen-free amorphous carbon coatings on Ar plasma-pretreated polytetrafluoroethylene (PTFE) with a-C:H:F interlayer

Published online by Cambridge University Press:  12 April 2013

Hironari Umemoto ,
Terumitsu Hasebe ,
Rumiko Kasai ,
Yukihiro Yoshimoto ,
So Nagashima ,
Atsushi Hotta  and
Tetsuya Suzuki
Hironari Umemoto
Affiliation:
Center for Science of Environment, Resources and Energy, Graduate School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan.
Terumitsu Hasebe
Affiliation:
Center for Science of Environment, Resources and Energy, Graduate School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan. Department of Radiology, Tokai University Hachioji Hospital, 1838 Ishikawa-machi, Hachioji-shi, Tokyo, 192-0032 Japan.
Rumiko Kasai
Affiliation:
Department of Radiology, Toho University Sakura Medical Center, 564-1 Shimoshizu, Sakura, Chiba 285-8741, Japan.
Yukihiro Yoshimoto
Affiliation:
Center for Science of Environment, Resources and Energy, Graduate School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan.
So Nagashima
Affiliation:
Institute for Multidisciplinary Convergence of Materials, Korea Institute of Science and Technology, Hwarang-no 14-gil 5, Seongbuk-gu, Seoul 136-791, Republic of Korea.
Atsushi Hotta
Affiliation:
Center for Science of Environment, Resources and Energy, Graduate School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan.
Tetsuya Suzuki
Affiliation:
Center for Science of Environment, Resources and Energy, Graduate School of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan.
Get access

Abstract

Amorphous carbon (a-C) films have a growing interest in the biological and medical field, as a coating material, due to their biocompatibility and antibacterial property. However, a-C films deposited directly on polymers often show adhesion failure.

In this paper, two types of a-C films, amorphous hydrogenated carbon (a-C:H) film and hydrogen-free a-C (H-free a-C) film were deposited on polytetrafluoroethylene (PTFE) using a plasma deposition method. Prior to a-C film coating, the PTFE substrates were treated with Ar and O2 plasma and an appropriate interlayer was chosen to enhance the adhesion strength. The effect of the plasma pretreatment on the chemical composition of the PTFE was investigated by X-ray photoelectron spectroscopy (XPS). A T-peel test was carried out to evaluate the adhesion strength of the a-C coated PTFE. In the T-peel test, Ar plasma pretreatment improved the adhesion strength more effectively than that of O2 plasma pretreatment, because of the substantial defluorination and oxygen bonding occurred by Ar plasma pretreatment. Moreover, H-free a-C film reduced the numbers of Escherichia coli (E. coli) colonies dramatically, compared with original PTFE and a-C:H coated PTFE. Consequently, H-free a-C film coating can be a promising method to inhibit the increase of bacteria.

Keywords

adhesionbiomaterialplasma-enhanced CVD (PECVD) (deposition)
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1505: Symposium W – Carbon Nanomaterials , 2013 , mrsf12-1505-w17-06
Copyright
Copyright © Materials Research Society 2013

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Sigler, M., Paul, T., Grabitz, R.G., Zeitschrift Fur Kardiologie 94/6 (2005) 383.CrossRefGoogle Scholar
Lammer, J., Stoffler, G., Petek, W.W., Hofler, H., Investigative Radiology 21/4 (1986) 329.CrossRefGoogle Scholar
Marciano, F.R., Bonetti, L.F., Mangolin, J.F., Da-Silva, N.S., Corat, E.J., Trava-Airoldi, V.J., Vacuum 85/6 (2011) 662.CrossRefGoogle Scholar
Ozeki, K., Hirakuri, K.K., Applied Surface Science 254/6 (2008) 1614.CrossRefGoogle Scholar
Hoshida, T., Tsubone, D., Takada, K., Kodama, H., Hasebe, T., Kamijo, A., Suzuki, T., Hotta, A., Surface & Coatings Technology 202/4–7 (2007) 1089.CrossRefGoogle Scholar
Wilson, D.J., Williams, R.L., Pond, R.C., Surface and Interface Analysis 31/5 (2001) 385.CrossRefGoogle Scholar
Zhou, H., Xu, L., Ogino, A., Nagatsu, M., Diamond and Related Materials 17/7–10 (2008) 1416.CrossRefGoogle Scholar