Formation of bone-like apatite on polymeric surfaces modified with -SO 3H groups

I. B. Leonor, H. M. Kim, F. Balas, M. Kawashita, R. L. Reis, T. Kokubo, T. Nakamura

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

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.

Original languageEnglish
Title of host publicationFast Software Encryption - 14th International Workshop, FSE 2007, Revised Selected Papers
PublisherTrans Tech Publications Ltd
Pages966-969
Number of pages4
EditionPART 2
ISBN (Print)9780878494026
Publication statusPublished - 2006 Jan 1
Event3rd International Materials Symposium and 12th Portuguese Materials Society Meeting 2005 - Aveiro, Portugal
Duration: 2005 Mar 202005 Mar 23

Publication series

NameMaterials Science Forum
NumberPART 2
Volume514-516
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752

Other

Other3rd International Materials Symposium and 12th Portuguese Materials Society Meeting 2005
CountryPortugal
CityAveiro
Period05/3/2005/3/23

Keywords

  • Apatite
  • Bioactivity
  • Polymer
  • Simulated body fluid (SBF)
  • Sulfonic groups (-SOh)
  • Surface modification

ASJC Scopus subject areas

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

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