7 documents found, page 1 of 1
Tuning the properties of gelatin films through crosslinking and addition of ion...
Etxabide, Alaitz; Carvalho, Estela; Pereira, Nelson; Correia, Daniela; Guerrero, Pedro; Costa, Carlos M.; Caba, Koro de la; Lanceros-Mendez, S.The exploration into biopolymer applications has experienced fast growth in recent years due to the ever-growing environmental and societal demand for a greener and safer environment. In this study, fish gelatin-based films with fructose and different choline-based ionic liquids, such as choline dihydrogen phosphate, choline acetate, and choline serinate, were prepared to assess the effect of Maillard reaction ...
Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) blends with poly(caprolactone) and...
Tubio, Carmen R.; Valle, Xabier; Carvalho, Estela; Moreira, Joana; Costa, Pedro Filipe Ribeiro; Correia, Daniela M.; Lanceros-Mendez, S.Poly(hydroxybutyrate-co-hidroxyvalerate) (PHBV) is a biodegradable polymer, which is a potential substitute for plastics made from fossil resources. Due to its practical interest in the field of tissue engineering, packaging, sensors, and electronic devices, the demand for PHBV with specific thermal, electrical, as well as mechanical requirements is growing. In order to improve these properties, we have develop...
Multifunctional touch sensing and antibacterial polymer-based core-shell metall...
Costa, Pedro; Polícia, Rita; Perinka, Nikola; Alesanco, Yolanda; Viñuales, Ana; Carvalho, Estela; Pereira, Nelson; Fernandes, Margarida Maria MacedoThe transmission of bacterial infections through contaminated surfaces is nowadays an increasing source of concern, also related to the current pandemic situation. Functional materials that prevent the adhesion of microorganisms and/or induce their eradication thus avoiding fomite transmission are highly needed. In this work, a highly antimicrobial hybrid with sensorial capability is developed to be further app...
Magnetoelectric polymer-based nanocomposites with magnetically controlled antim...
Fernandes, Margarida; Martins, Pedro Libânio Abreu; Correia, Daniela M.; Carvalho, Estela; Gama, F. M.; Vazquez, Manuel; Bran, CristinaThe emergence of antimicrobial resistance is considered a public health problem due to the overuse and misuse of antibiotics which are losing efficacy toward an increasing number of microorganisms. Advanced antimicrobial strategies via development of alternative drugs and materials able to control microbial infections, especially in clinical settings, are urgently needed. In this work, nanocomposite films were ...
Biodegradable hydrogels loaded with magnetically responsive microspheres as 2D ...
Carvalho, Estela; Ribeiro, Clarisse; Correia, Daniela M.; Botelho, Gabriela; Lanceros-Méndez, S.Scaffolds play an essential role in the success of tissue engineering approaches. Their intrinsic properties are known to influence cellular processes such as adhesion, proliferation and differentiation. Hydrogel-based matrices are attractive scaffolds due to their high-water content resembling the native extracellular matrix. In addition, polymer-based magnetoelectric materials have demonstrated suitable bioac...
Tailoring electroactive poly(vinylidene fluorideco-trifluoroethylene) microsphe...
Macedo, A. S.; Carvalho, Estela; Cardoso, V. F.; Correia, Daniela Maria Silva; Tubio, C. R.; Fidalgo-Marijuan, A.; Botelho, GabrielaPoly(vinylidene fluorideco-trifluoroethylene) (P(VDF-TrFE)) microspheres were obtained by a nanoprecipitation method based on the deposition of a polymeric solution over a non-solvent (NS) solution. The effect of several parameters on sphere formation was evaluated, including copolymer concentration, NS content (methanol/water ratio) and surfactant type. Morphological and physico-chemical characterizations were...
Electroactive smart materials: novel tools for tailoring bacteria behavior and ...
Fernandes, Margarida Maria Macedo Francesko; Carvalho, Estela; Lanceros-Méndez, S.Despite being very simple organisms, bacteria possess an outstanding ability to adapt to different environments. Their long evolutionary history, being exposed to vastly different physicochemical surroundings, allowed them to detect and respond to a wide range of signals including biochemical, mechanical, electrical, and magnetic ones. Taking into consideration their adapting mechanisms, it is expected that nov...