Utilize este identificador para referenciar este registo: https://hdl.handle.net/1822/18311

TítuloFormation of bone-like apatite on polymeric surfaces modified with -SO3H groups
Autor(es)Leonor, I. B.
Kim, H-M
Balas, F.
Kawashita, M.
Reis, R. L.
Kokubo, T.
Nakamura, T.
Palavras-chavePolymer
Sulfonic groups (-SO3H)
Surface modification
Apatite
Simulated body fluid (SBF)
Bioactivity
Sulfonic groups (-SO h) 3
Data2006
EditoraTrans Tech Publications
RevistaMaterials Science Forum
Resumo(s)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.
TipoArtigo em ata de conferência
URIhttps://hdl.handle.net/1822/18311
ISBN978-0-87849-402-6
ISSN0255-5476
Arbitragem científicayes
AcessoAcesso aberto
Aparece nas coleções:3B’s - Capítulos de Livros/Book Chapters

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