Surface modification of poly(l-lactide) and polycaprolactone bioresorbable polymers using RF plasma discharge with sputter deposition of a hydroxyapatite target

E. N. Bolbasov, M. Rybachuk, A. S. Golovkin, L. V. Antonova, E. V. Shesterikov, A. I. Malchikhina, V. A. Novikov, Y. G. Anissimov, S. I. Tverdokhlebov

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Abstract

Surface modification of poly(l lactide) (l-PLA) and polycaprolactone (PCL) bioresorbable polymers by radio-frequency thermal glow discharge plasma is reported. Improved biocompatibility of l-PLA and PCL materials was obtained by employing hydroxyapatite target sputtering in Ar+ plasma as evidenced by the change of l-PLA and PCL properties from highly hydrophobic to hydrophilic, with absolute wettability obtained for both materials, and enhanced cell line EA-hy 926 attachment to modified surfaces. Surface roughness and surface free energy were found to increase significantly for both polymers under prolonged plasma exposure and, a longer chain aliphatic PCL were found to display a marginally better post plasma-treated biocompatibility compared to l-PLA.

Original languageEnglish
Pages (from-to)281-284
Number of pages4
JournalMaterials Letters
Volume132
DOIs
Publication statusPublished - 1 Oct 2014

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Keywords

  • Biomaterials
  • Calcium-phosphate
  • Magnetron sputter deposition
  • Polymers

ASJC Scopus subject areas

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

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