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Nanofibrillated cellulose offers new technological solutions for the development of paper products. Here, composites of nanofibrillated cellulose (NFC) and Ag nanoparticles (NP) were prepared for the first time via the electrostatic assembly of Ag NP (aqueous colloids) onto NFC. Distinct polyelectrolytes have been investigated as macromolecular linkers in order to evaluate their effects on the building-up...
BACKGROUND: Orthorexia nervosa (ON) is described as an obsessive pathological behavior characterized by a strong preoccupation with healthy eating and the avoidance of foods or ingredients considered unhealthy by the subject. Although it is still not officially recognized as an eating disorder, previous studies have discussed its frequency in some groups and a fifteen-question test (ORTO-15) was...
Solutions of lysozyme in mixtures of tetramethylurea, TMU, and water, W, undergo "gelation" above a certain critical composition, at room temperature; the threshold composition for gelation shows some dependence on temperature. Lysozyme gelation in TMU/W has been explained by solvent-induced protein unfolding, due to the protein exposure to a more hydrophobic microenvironment. This preferential...
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