9 documents found, page 1 of 1
The new silk road: Silk fibroin blends and composites for next generation funct...
Reizabal, A.; Costa, Carlos Miguel Silva; Pérez-Álvarez, L.; Vilas-Vilela, J. L.; Lanceros-Mendez, S.Silk Fibroin (SF), a protein typically extracted from Bombyx mori cocoons, is considered to play an essential role in advancing the development of a more sustainable generation of multifunctional materials. The unique properties of SF have led to its widespread application in various fields, including energy harvesting, electronics, and biomedicine. However, to further expand SF's potential and tailor it for sp...
Silk fibroin and sericin polymer blends for sustainable battery separators
Reizabal, A.; Fidalgo-Marijuan, A.; Gonçalves, R.; Gutiérrez-Pardo, A.; Aguesse, F.; Pérez-Álvarez, L.; Vilas-Vilela. J. L.; Costa, C. M.Natural polymers are a promising alternative for reducing the environmental impact of batteries. For this reason, it is still necessary to study their behavior and implement its use in these devices, especially in separator membranes. This work reports on new separator membranes based on silk fibroin (SF) and silk sericin (SS) prepared by salt leaching method. The effect of the different SS relative content on ...
Processing strategies to obtain highly porous silk fibroin structures with tail...
Reizabal, A.; Costa, Carlos Miguel Silva; Saiz, P. G.; Gonzalez, B.; Pérez-Álvarez, L.; Fernández de Luis, R.; Garcia, A.; Vilas-Vilela, J. L.The present work reports on the control of silk fibroin (SF) porous structures performance through various processing methods. The study includes the analysis of two dissolving techniques (CaCl2/H2O/EtOH ternary and LiBr/H2O binary solutions), three regeneration methods (gelation, lyophilization and gas foaming) and one post-processing (EtOH). In all the cases, followed steps lead to SF structures with porosity...
Broadband dielectric response of silk Fibroin/BaTiO3 composites: Influence of n...
Costa, C. M.; Reizabal, A.; Sabater i Serra, R.; Balado, A. A.; Pérez-Álvarez, L.; Gómez Ribelles, J. L.; Lanceros-Méndez, S.In order to advance towards more sustainable electronics generation, natural polymers with tailored dielectric response are essential. In this search, the combination of bio-based materials with active fillers in composite form, suppose one of the most viable alternatives. To achieve it, this work has explored the ability to control dielectric response of Silk Fibroin, a protein polymer by its combination with ...
Electroactive γ-phase, enhanced thermal and mechanical behaviour and high ionic...
Lizundia, E.; Reizabal, A.; Costa, Carlos Miguel Silva; Maceiras, A.; Lanceros-Méndez, S.Cellulose nanocrystals (CNCs) were incorporated into poly (vinylidene fluoride) (PVDF) to tailor the mechanical and dielectric properties of this electroactive polymer. PVDF/CNC nanocomposites with concentrations up to 15 wt.% were prepared by solvent-casting followed by quick vacuum drying in order to ensure the formation of the electroactive γ-phase. The changes induced by the presence of CNCs on the morpholo...
Tailoring silk fibroin separator membranes pore size for improving performance ...
Reizabal, A.; Gonçalves, R.; Fidalgo-Marijuan, A.; Costa, Carlos Miguel Silva; Pérez, L.; Vilas, J.-L.; Lanceros-Méndez, S.The search of natural materials for their application in energy storage systems in general and batteries in particular is growing due to their promising properties and the need of environmental sustainability. Silk fibroin (SF) is one of those materials due to their mechanical and thermal properties, non-toxicity and biocompatibility. Further, SF exhibits excellent cycling performance as separator for lithium-i...
Lithium-ion battery separator membranes based on poly(L-lactic acid) biopolymer
Barbosa, J. C.; Reizabal, A.; Correia, Daniela Maria Silva; Fidalgo-Marijuan, A.; Gonçalves, R.; Silva, M. M.; Lanceros-Méndez, S.Sustainable materials are increasingly needed in lithium ion batteries in order to reduce their environmental impact and improve their recyclability. This work reports on the production of separators using poly (L-lactic acid) (PLLA) for lithium ion battery applications. PLLA separators were obtained by solvent casting technique, by varying polymer concentration in solution between 8 wt% and 12 wt% in order to ...
Silk fibroin magnetoactive nanocomposite films and membranes for dynamic bone t...
Reizabal, A.; Brito-Pereira, R.; Fernandes, Margarida; Castro, N.; Correia, V.; Ribeiro, C.; Costa, C. M.; Perez, L.; Vilas, J. L.; Lanceros-Méndez, S.Bone-related diseases are one of the most common health conditions that limit the quality of life of elderly. Novel materials for bone tissue engineering that actively assist on the regeneration of bone tissue are thus needed. In this work, magnetoactive scaffolds comprised of silk fibroin (SF) with different content of filler cobalt ferrite nanoparticles were produced by solvent-casting and electrospinning tec...
Optimized silk fibroin piezoresistive nanocomposites for pressure sensing appli...
Reizabal, A.; Gonçalves, Sérgio Abílio Pereira; Brito-Pereira, R.; Costa, P.; Costa, Carlos Miguel Silva; Pérez-Álvarez, L.; Vilas-Vilela, J. L.Environmental issues promote the development of sensors based on natural polymers which are becoming an area of increasing interest. Piezoresistive sensors based on silk fibroin with carbon nanotubes (CNTs) as fillers were produced by solvent-casting in order to tune their electrical conductivity and electromechanical responses. It is shown that the carbonaceous fillers are well dispersed in the polymer matrix ...