Journal
COMPOSITES PART B-ENGINEERING
Volume 153, Issue -, Pages 413-419Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.compositesb.2018.09.019
Keywords
Genetically engineered protein-based composites; silk-elastin-like protein; Magnetic properties; Physical properties
Funding
- national funds through FCT I.P. (Fundacao para a Ciencia e Tecnologia, Portugal)
- European Regional Development Fund (ERDF) through COMPETE2020 - Programa Operacional Competitividade e Internacionalizacao (POCI, Portugal) [UID/BIA/04050/2013 (POCI-01-0145-FEDER-007569), UID/FIS/04650/2013]
- FCT I.P. (Portugal) within the ERA NET -2 project FunBioPlas [ERA-IB-15-089]
- FCT [ERA-IB-2-6/0004/2014]
- EuroNanoMed 2016
- project LungChek [ENMed/0049/2016]
- FCT I.P. [SFRH/BPD/121526/2016, SFRH/BPD/121464/2016, SFRH/BD/111478/2015]
- Norte Portugal Regional Operational Programme (NORTE 2020), under the PORTUGAL 2020 Partnership Agreement, through the European Regional Development Fund (ERDF) [NORTE-01-0145-FEDER-000009]
- Spanish Ministry of Economy and Competitiveness (MINECO) [MAT2016-76039-C4-3-R]
- Basque Government Industry Department (Spain)
- Fundação para a Ciência e a Tecnologia [ERA-IB-2-6/0004/2014] Funding Source: FCT
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Magnetic nanocomposite films, comprised of a genetically engineered silk-elastin-like protein (SELP) and CoFe2O4 nanoparticles (CFO NPs) with concentrations varying between 5 and 20 wt%, were produced by solvent casting. The obtained materials were analysed regarding their morphology, physical-chemical, thermal, mechanical and magnetic properties. It was found that the magnetic NPs are homogenously distributed among the film and do not induce any significant alterations in their physical-chemical properties. Regarding the thermal properties, the onset degradation temperature of the SELP-59-A films was also not significantly altered by the inclusion of the NPs. Further, strongly bound water is present in the material, which decreases with increasing NPs concentration. Likewise, the mechanical properties of the films were affected by the presence of NPs. Finally, it was demonstrated that the magnetization saturation increases with increasing CFO NPs content, showing the magnetic responsivity of the materials and opening new perspectives in the development of a new generation of multifunctional biocomposites suitable for a wide range of applications, from sensors to tissue engineering.
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