Paper Title:
Formation of Bone-Like Apatite on Polymeric Surfaces Modified with -SO3H Groups
  Abstract

Sulfonic groups (-SO3H) were covalently attached on different polymeric surfaces enabling them to induce apatite nucleation, for developing bioactive apatite-polymer composites with a bonelike 3-dimensional structure. High molecular weight polyethylene (HMWPE) and ethylene-co-vinyl alcohol co-polymer (EVOH) were used. The polymers were soaked in two types of sulphate-containing solutions with different concentrations, sulphuric acid (H2SO4) and chlorosulfonic acid (ClSO3H). To incorporate calcium ions into to the sulfonated polymers, the samples were soaked in a saturated Ca(OH)2 solution for 24 hours. After soaking of the samples in a simulated body fluid (SBF), formation of an apatite layer on both surfaces was observed. The results obtained prove the validity of the proposed concept and show that the -SO3H groups are effective on inducing apatite nucleation on the surface of these polymers.

  Info
Periodical
Materials Science Forum (Volumes 514-516)
Edited by
Paula Maria Vilarinho
Pages
966-969
DOI
10.4028/www.scientific.net/MSF.514-516.966
Citation
I. B. Leonor, H. M. Kim, F. Balas, M. Kawashita, R. L. Reis, T. Kokubo, T. Nakamura, "Formation of Bone-Like Apatite on Polymeric Surfaces Modified with -SO3H Groups", Materials Science Forum, Vols. 514-516, pp. 966-969, 2006
Online since
May 2006
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