Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/18311
Título: | Formation 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-chave: | Polymer Sulfonic groups (-SO3H) Surface modification Apatite Simulated body fluid (SBF) Bioactivity Sulfonic groups (-SO h) 3 |
Data: | 2006 |
Editora: | Trans Tech Publications |
Revista: | Materials Science Forum |
Citação: | Leonor, I. B., Kim, H. M., Balas, F., Masakazu, K., Reis, R. L., Kokubo, T., & Nakamura, T. (2006, May 15). Formation of Bone-Like Apatite on Polymeric Surfaces Modified with -SO3H Groups. Materials Science Forum. Trans Tech Publications, Ltd. http://doi.org/10.4028/www.scientific.net/msf.514-516.966 |
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. |
Tipo: | Artigo em ata de conferência |
URI: | https://hdl.handle.net/1822/18311 |
ISBN: | 978-0-87849-402-6 |
DOI: | 10.4028/www.scientific.net/msf.514-516.966 |
ISSN: | 0255-5476 |
Versão da editora: | http://doi.org/10.4028/www.scientific.net/msf.514-516.966 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: |