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Preparation and characterization of polysaccharides/PVA blend nanofibrous membr...
Santos, Carla; Silva, Carla J.; Büttel, Zsófia; Guimarães, Rodrigo; Pereira, Sara B.; Tamagnini, Paula; Zille, AndreaA series of polyvinyl alcohol (PVA), PVA/chitosan (CS) and PVA/cyanobacterial extracellular polymeric substances (EPS) blended nanofibrous membranes were produced by electrospinning using a microfiltration poly(vinylidene fluoride) (PVDF) basal membrane, for potential applications in water filtration. Nanofibres were obtained from solutions of 20% (w/w) PVA with 1% (w/w) CS or EPS, using a weight ratio of 60/40...
Thin-layer nanofiltration membranes using engineered biopolymers for seawater d...
Büttel, Zsófia; Guimarães, Rodrigo; Santos, Carla; Silva, Carla J.; Pereira, Sara B.; Mota, Rita; Tamagnini, Paula; Zille, AndreaNowadays water demand already exceeds supply and water scarcity is a global problem. So it is necessary to develop novel technologies to be able to use poorer quality source waters for drinking water production. Once considered as an expensive, ultimate solution for water supply, desalination is becoming affordable. The two most commonly used seawater desalination methods are Multi-stage Flash Distillation (MSF...
Production and characterization of extracellular carbohydrate polymer from Cyan...
Mota, Rita; Guimarães, Rodrigo; Büttel, Zsófia; Rossi, Federico; Colica, Giovanni; Silva, Carla J.; Santos, Carla; Gales, Luís; Zille, AndreaCyanobacterial extracellular polymeric substances (EPS) are heteropolysaccharides that possess characteristics suitable for industrial applications, notably a high number of different monomers, strong anionic nature and high hydrophobicity. However, systematic studies that unveil the conditions influencing EPS synthesis and/or its characteristics are mandatory. In this work, Cyanothece sp. CCY 0110 was used as ...
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