Luizângela da Silva Reis

TL;DR: The biocompatibility of the derivatives was confirmed by the low hemolytic rate (<5%), non-toxic on Artemia salina (LD50%>3000 ppm), and significant index (1-34%) of antioxidant activity, and the results demonstrated that chitosan and its derivatives are promising biomaterials.

TL;DR: In this paper, a silica was modified with three alcoxysilanes with different quantities of nitrogen, whose the silica obtained from chrysotile acid leaching, obtained the following capacities: 1.41, 0.78 e 0.60 mmol g-1 for the materials containing 3, 1 and 2 nitrogen in organic chains.

TL;DR: Investigation of the healing activity of gastric lesion of the chitosan derivative with acetylacetone modified with ethylenediamine or diethylenetriamine, indicates that derivatives of chitOSan are promising biomaterials for application in the control of lesions on the gastric mucosa.

TL;DR: In this paper, a silica was modified with three alcoxysilanes with different quantities of nitrogen, whose the silica obtained from chrysotile acid leaching, obtained the following capacities: 1.41, 0.78 e 0.60 mmol g -1 for the materials containing 3, 1 and 2 nitrogen in organic chains.

TL;DR: In this paper , a cotidiano de estudantes in rural do distrito do Vale dos Sonhos, no município de Barra do Garças-MT, in Portugal, discusses a discussão, problematizar perspectivas da Educação do Campo, bem como pensar sobre as possibilidades do audiovisual como potencializador na conquista da cidadania.