9 documents found, page 1 of 1
Au-sensitised TiO<inf>2</inf> and ZnO nanoparticles for broadband pharmaceutica...
Zheng, Fangyuan; Queirós, Joana M.; Martins, Pedro M.; Fernández de Luis, Roberto; Fidalgo-Marijuan, Arkaitz; Vilas-Vilela, José L.; Lanceros-Mendez, S.A large number of contaminants of emerging concerns, such as most pharmaceuticals, exhibit high persistency in water bodies due to the difficulty of their removal by conventional treatment methods, causing severe environmental issues. Semiconductor-based photocatalysis has become an exciting solution to remove these pollutants through photocatalytic degradation. However, the high diversity of chemical compositi...
On the multiscale structure and morphology of PVDF-HFP@MOF membranes in the sco...
Valverde, Ainara; de Fernandez-de Luis, Roberto; Salazar, Hugo; Gonçalves, Bruna F.; King, Stephen; Almásy, László; Kriechbaum, Manfred; Laza, José M.Poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) is a highly versatile polymer used for water remediation due to its chemical robustness and processability. By incorporating metal-organic frameworks (MOFs) into PVDF-HFP membranes, the material can gain metal-adsorption properties. It is well known that the effectiveness of these composites removing heavy metals depends on the MOF's chemical encoding ...
Tuning magnetic response and ionic conductivity of electrospun hybrid membranes...
Hermenegildo, Bruno Filipe Costa; Correia, Daniela Maria Silva; Ribeiro, Clarisse Marta Oliveira; Serra, J. P.; Pérez, L.; Vilas-Vilela, José L.Electrospun membranes play an increasing role in tissue regeneration base on their suitable morphological features. The implementation of active response, such as magnetically responsiveness or piezo-ionic features can further improve tissue regeneration by better resembling varying microenvironment during cell culture. In this context, this work reports on the development of poly(vinylidene fluoride) (PVDF) or...
Environmentally friendly carrageenan-based ionic-liquid driven soft actuators
Serra, João P.; Fernandes, Liliana C.; Correia, Daniela Maria Silva; Tubio, Carmen R.; Vilas-Vilela, José L.; Tariq, Mohammad; Esperança, José M. S. S.Naturally derived polymer based on iota carrageenan and different ammonium and imidazolium based ionic liquids (ILs) are used for the development of environmentally friendly soft actuators. The influence of IL content and type and solvent evaporation temperature on the morphological and physico-chemical properties of the materials was evaluated, together with the effect on actuator functional response. Independ...
Ionic liquid modified electroactive polymer-based microenvironments for tissue ...
Hermenegildo, B.; Meira, R. M.; Díez, A. G.; Correia, Daniela Maria Silva; Ribeiro, S.; Serra, J. P.; Ribeiro, Clarisse; Pérez-Álvarez, L.The combination of electroactive polymers and ionic liquids (ILs) has been gaining much attention for tissue engineering. Thus, this work reports on the development of oriented electrospun fibers and films based on poly(vinylidene fluoride) (PVDF) and polyhydroxybutyrate-co-hydroxyvalerate (PHBV) blended with the IL choline acetate ([Chol][Ac]). The inclusion of IL into the polymer matrix induces a decrease in ...
Poly(lactic-co-glycolide) based biodegradable electrically and magnetically act...
Hermenegildo, B.; Meira, Rafaela Marques; Correia, Daniela Maria Silva; Díez, A. G.; Ribeiro, Sylvie Oliveira; Serra, J. P.; Ribeiro C.Polymer scaffolds are playing an increasing role in tissue engineering (TE), although there is still a need to improve their biomimicry of cellular microenvironments, by having smart scaffolds with an active response, which can improve tissue regeneration. This work reports on the novel combination of poly(lactic-co-glycolide) (PLGA) with the ionic liquid (IL) choline bis(trifluoromethylsulfonyl)imide ([Chol][T...
Metal organic framework based PVDF separators for high rate cycling lithium-ion...
Valverde, Ainara; Gonçalves, Renato Ferreira; Silva, María M.; Wuttke, Stefan; Fidalgo, Arkaitz; Costa, Carlos M.; Vilas-Vilela, José L.; Laza, José M.Poly(vinylidene fluoride) (PVDF) and MOF-808-based separators for lithium-ion batteries (LIBs) have been prepared and fully characterized in terms of morphological and thermal properties, electrolyte uptake, and retention, and surface hydrophilic characteristics. The effect of PVDF/MOF-808 separators on the electrochemical performance of LIBs has been evaluated. The PVDF/MOF-808 membranes exhibit a well-defined...
Optically transparent silk fibroin/silver nanowire composites for piezoresistiv...
Reizabal, Ander; Gonçalves, Sérgio Abílio Pereira; Pereira, Nelson; Costa, Carlos Miguel Silva; Pérez, Leyre; Vilas-Vilela, José L.; Lanceros-Méndez, S.This work focuses on the development of a novel generation of bio-based advanced multifunctional materials, able to replace the synthetic ones and thus contributing to sustaibanility. Silk Fibroin (SF), a protein obtained from Bombyx mori cocoons, has been selected due to its natural accessibility, physico-chemical properties and facile processability. In order to extend its functionality, SF was combined with ...
Photocatalytic and antimicrobial multifunctional nanocomposite membranes for em...
Salazar, H.; Martins, P. M.; Santos, Bruno; Fernandes, Margarida; Reizabal, Ander; Sebastián, Víctor; Botelho, Gabriela; Tavares, Carlos J.Emerging pollutants represent a new global problem for water quality. As these compounds get into the environment, they cause severe threats to aquatic environments and human health and are typically resistant to conventional wastewater treatments. In this work, TiO2 nanoparticles surface was functionalized with silver (Ag) nanoparticles, and solvent cast and electrospun membranes of poly (vinylidene fluoride-c...