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https://hdl.handle.net/1822/3866
Título: | Effect of crosslinking, thermal treatment and UV irradiation on the mechanical properties and in vitro degradation behavior of several natural proteins aimed to be used in the biomedical field |
Autor(es): | Vaz, Cláudia M. Graaf, L. A. de Reis, R. L. Cunha, A. M. |
Data: | 2003 |
Editora: | Springer Science |
Revista: | Journal of Materials Science: Materials in Medicine |
Citação: | “Journal Materials Science : Materials in Medicine”. ISSN 0957-4530. 14:9 (Sept. 2003) 789-796. |
Resumo(s): | Gelatine (GEL), soy (SI), casein (CAS) and sodium-caseinate (NaCAS) solutions were cast to produce protein films. All the proteins were chemically modified by adding glyoxal to the film-forming solutions in amounts varying from 0 to 0.9% (w/w based on the protein content). After casting, the same films were also submitted to a heat treatment performed at 80 °C or UV irradiation. The effect of those chemical/physical modifications on the mechanical properties and on the hydrolytic stability of the protein films was evaluated. As a result, a large variety of protein films with different mechanical properties and degradation profiles were developed. CAS and NaCAS even when chemically/physically modified do not resist to hydrolysis longer than 2 weeks. GEL, only when chemically modified with glyoxal, become water resistant. Due to its hydrolytic stability, SI become a very attractive material for biomedical applications where long term treatments are a requisite. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/3866 |
DOI: | 10.1023/A:1025040522513 |
ISSN: | 0957-4530 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | 3B’s - Artigos em revistas/Papers in scientific journals |