Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/58896
Título: | Development of bio-hybrid piezoresistive nanocomposites using silk-elastin protein copolymers |
Autor(es): | Correia, Daniela M. Ribeiro, S. Costa, André da Ribeiro, Clarisse Casal, Margarida Lanceros-Méndez, S. Machado, Raul |
Palavras-chave: | CNTs Electromechanical Gauge factor Nanocomposites Piezoresistive Protein-based SELP Silk-elastin-like protein |
Data: | Mar-2019 |
Editora: | Elsevier |
Revista: | Composites Science and Technology |
Citação: | Correia, Daniela M.; Ribeiro, S.; Costa, André da; Ribeiro, Clarisse; Casal, Margarida; Lanceros-Mendez, Senentxu; Machado, Raul, Development of bio-hybrid piezoresistive nanocomposites using silk-elastin protein copolymers. Composites Science and Technology, 172, 134-142, 2019 |
Resumo(s): | Recombinant silk-elastin-like protein (SELP)/carbon nanotubes (CNTs) nanocomposite films with different amounts of CNTs (1, 3 and 6wt%) were prepared by solvent casting. The produced films were stabilized by exposure to methanol that induces an increase of the -structure content. The CNTs were homogeneously distributed into the SELP matrix and did not induce significant alterations into its chemical structure. The incorporation of CNTs also increased the thermal stability of the films. Further, the incorporation of 1wt% of CNTs greatly improved the mechanical properties of the SELP matrix leading to a 6-fold increase in strain-to-failure and to increase the ultimate tensile strength with minor differences in modulus of elasticity. The nanocomposites exhibited a good linearity between deformation and electrical resistance variation with electrical conductivity increasing with the nanofiller content up to 0.8Sm1. Finally, the produced nanocomposites were non-cytotoxic indicating their suitability for biomedical applications. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/58896 |
DOI: | 10.1016/j.compscitech.2019.01.017 |
ISSN: | 0266-3538 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series DBio - Artigos/Papers |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
document_50503_1.pdf | 2,41 MB | Adobe PDF | Ver/Abrir |