Surface wettability and energy effects on the biological performance of poly-3-hydroxybutyrate films treated with RF plasma

Dina Sergeevna Syromotina, R. A. Surmenev, M. A. Surmeneva, A. N. Boyandin, E. D. Nikolaeva, O. Prymak, M. Epple, M. Ulbricht, C. Oehr, T. G. Volova

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

The surface properties of poly-3-hydroxybutyrate (P3HB) membranes were modified using oxygen and an ammonia radio-frequency (RF, 13.56 MHz) plasma. The plasma treatment procedures used in the study only affected the surface properties, including surface topography, without inducing any significant changes in the crystalline structure of the polymer, with the exception being a power level of 250 W. The wettability of the modified P3HB surfaces was significantly increased after the plasma treatment, irrespective of the treatment procedure used. It was revealed that both surface chemistry and surface roughness changes caused by the plasma treatment affected surface wettability. A treatment-induced surface aging effect was observed and resulted in an increase in the water contact angle and a decrease in the surface free energy. However, the difference in the water contact angle between the polymers that had been treated for 4 weeks and the untreated polymer surfaces was still significant. A dependence between cell adhesion and proliferation and the polar component of the surface energy was revealed. The increase in the polar component after the ammonia plasma modification significantly increased cell adhesion and proliferation on biodegradable polymer surfaces compared to the untreated P3HB and the P3HB modified using an oxygen plasma.

Original languageEnglish
Pages (from-to)450-457
Number of pages8
JournalMaterials Science and Engineering C
Volume62
DOIs
Publication statusPublished - 1 May 2016

Keywords

  • Plasma
  • Polar component
  • poly-3-hydroxybutyrate membranes
  • Surface energy
  • Surface treatment

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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