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The effect of phosphoethanolamine intake on mortality and macrophage activity in mice with solid ehrlich tumors
(Brazilian Archives of Biology and Technology, 2011-12-01)
The aim of the present study was to examine the effect of a diet rich in synthetic PEtn on the metabolism macrophages of tumor-bearing mice. The results demonstrated that PEtn increased the animals' survival time. In ...
Peróxido de hidrogênio: importância e determinação
(Sociedade Brasileira de Química, 2003-05-01)
A brief discussion about the hydrogen peroxide importance and its determination is presented. It was emphasized some consideration of the H2O2 as reagent (separated or combined), uses and methods of analysis (techniques, ...
Intermediate reactive oxygen and nitrogen from macrophages induced by Brazilian lichens
(Elsevier B.V., 2004-07-01)
The activity of ten compounds isolated from Brazilian lichen over the release of hydrogen peroxide and nitric oxide was evaluated in the culture of peritoneal macrophage cells from mice. Salazinic, secalonic A and ...
Effective pair potentials and structure of water
(1999-05-01)
Classical Monte Carlo calculations have been performed in order to investigate the ability of the TIP4P, SPC, and SPCE water models to reproduce the structural features of liquid water. The simulations were carried out in ...
Evaluation of the combined solar TiO2/photo-Fenton process using multivariate analysis
(2004-04-21)
The effect of combining the photocatalytic processes using TiO 2 and the photo-Fenton reaction with Fe3+ or ferrioxalate as a source of Fe2+ was investigated in the degradation of 4-chlorophenol (4CP) and dichloroacetic ...
Influence of endogenous and synthetic female sex hormones on human blood cells in vitro studied with comet assay
(2007-08-01)
The comet assay has been conducted with numerous cell lines to assess in vitro genotoxicity. In order to use the comet assay as part of an in vitro test for evaluating genotoxicity, however, there are cell-specific factors ...
Antioxidant enzyme activity and hydrogen peroxide content during the drying of Arabica coffee beans
(2013-03-04)
The development of the germination process and drought stress during the drying of coffee can generate reactive oxygen species, which can be neutralized by way of antioxidant mechanisms. No studies related to antioxidant ...
Toward pH-controllable bioelectrocatalysis for hydrogen peroxide based on polymer brushes
(2013-04-01)
In the present work, a biosensor was built with smart material based on polymer brushes. The biosensor demonstrated a pH-sensitive on-off property, and it was further used to control or modulate the electrochemical responses ...
A Chloro-Bridged Linear Chain Imine-Copper(II) Complex and Its Application as an Enzyme-Free Amperometric Biosensor for Hydrogen Peroxide
(Wiley-v C H Verlag Gmbh, 2009-05-01)
The synthesis, structural characterisation and magnetic properties of a new chloro-bridged linear chain imine-copper(II) compound are reported. The results indicate that uniform chains are formed by stacking of parallel ...