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https://hdl.handle.net/1822/28587
Título: | Thermal and hydrolytic degradation of electrospun fish gelatin membranes |
Autor(es): | Correia, D. M. Padrão, Jorge Rodrigues, L. R. Dourado, Fernando Lanceros-Méndez, S. Sencadas, Vítor João Gomes Silva |
Palavras-chave: | Fish gelatin Electrospun membranes Thermal degradation Hydrolytic degradation Biomaterials |
Data: | 2013 |
Editora: | Elsevier 1 |
Revista: | Polymer Testing |
Resumo(s): | The thermal and hydrolytic degradation of electrospun gelatin membranes cross-linked with glutaraldehyde in vapor phase has been studied. In vitro degradation of gelatin membranes was evaluated in phosphate buffer saline solution at 37 °C. After 15 days under these conditions, a weight loss of 68% was observed, attributed to solvation and depolymerization of the main polymeric chains. Thermal degradation kinetics of the gelatin raw material and as-spun electrospun membranes showed that the electrospinning processing conditions do not influence polymer degradation. However, for cross-linked samples a decrease in the activation energy was observed, associated with the effect of glutaraldehyde cross-linking reaction in the inter- and intra-molecular hydrogen bonds of the protein. It is also shown that the electrospinning process does not affect the formation of the helical structure of gelatin chains |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/28587 |
DOI: | 10.1016/j.polymertesting.2013.05.004 |
ISSN: | 0142-9418 |
e-ISSN: | 0142-9418 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series CDF - FCD - Artigos/Papers (with refereeing) CDQuim - Artigos (Papers) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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correia_2013.pdf | 865,91 kB | Adobe PDF | Ver/Abrir |