Reactive Red M 2be
Mostrando 1-12 de 13 artigos, teses e dissertações.
-
1. Nanotubos de carbono como nanoadsorventes na remoção de corantes sintéticos de soluções aquosos : um estudo experimental e teórico
Este trabalho teve como objetivo investigar a adsorção de corantes têxteis (Vermelho Reativo 194 e Azul de Prociona MX-R) em nanotubos de carbono (NTC) em meio aquoso. Para tanto, empregou-se nanotubos de carbono de paredes múltiplas (NTCPM) e carvão ativo (CA) em pó, ambos comerciais, na remoção do corante têxtil Vermelho Reativo 194 e nanotubos de
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
-
2. Síntese e caracterização de poliuretano à base de óleo de Mabea fistulifera Mart. e sua utilização para remoção de corantes têxteis / Synthesis and characterization of Mabea fistulifera Mart. oil based polyurethane its use for textile dyes removal
Hard polyurethane polymers (PU-1, PU-2, PU-3 and PU-4) were developed in this study, obtained from polyols derived from Mabea fistulifera Mart oil. The chemical modification of the oil occurred through an in situ hydroxylation reaction employing acetic acid, hydrogen peroxide and sulfuric acid. The reaction conditions were optimized using a factorial composi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/05/2011
-
3. Glycolipids from macroalgae: potential biomolecules for marine biotechnology?
Brown, red and green algae from the Southeastern coast of Brazil were successively extracted with chloroform/methanol 2:1 and 1:2 (v/v). The crude lipid extract was partitioned according to Folch and the lower phase enriched in glycolipids was fractionated on a silica gel column chromatography eluted with chloroform, acetone and methanol. Three major orcinol
Revista Brasileira de Farmacognosia. Publicado em: 01/04/2011
-
4. Fatores geneticos moduladores da gravidade clinica nas Beta-talassemias : o exemplo da proteina AHSP (Alpha Hemoglobin Stabilizing Protein)
Alpha-hemoglobin stabilizing protein (AHSP) is an erythroid-specific molecular chaperone that binds the cx-chains of hemoglobin, preventing their precipitation and deleterious effects. Loss of AHSP exacerbates a-globin precipitation and anemia in a murine model for p-thalassemia. In vitro, recombinant AHSP inhibits the production of reactive oxygen species (
Publicado em: 2006
-
5. Protection of plasmid DNA by a Ginkgo biloba extract from the effects of stannous chloride and the action on the labeling of blood elements with technetium-99m
Ginkgo biloba extract (EGb) is a phytotherapeutic agent used for the treatment of ischemic and neurological disorders. Because the action of this important extract is not fully known, assays using different biological systems need to be performed. Red blood cells (RBC) are labeled with technetium-99m (Tc-99m) and used in nuclear medicine. The labeling depend
Brazilian Journal of Medical and Biological Research. Publicado em: 2004-02
-
6. Effect of Ginkgo biloba on the labeling of blood elements with technetium-99m: in vitro study
Ginkgo biloba is the phytoterapic most used in popular medicine in the treatment of cerebral senescence. Red blood cells (RBC) labeled with technetium-99m (Tc-99m) is used for several evaluations in nuclear medicine. This labeling depends on a reducing agent, usually the stannous ion. Any drug, which alters the labeling of the tracer, could be expected to mo
Revista Brasileira de Farmacognosia. Publicado em: 2002
-
7. Liberação de radicais livres por leucocitos de pacientes com anemia falciforme
Sickle cell anemia is a genetic disorder of red blood cells characterized by chronic hemolysis and episodic vaso-oclusive crisis. The molecular defect is caused by a point mutation at the 6thposition ofthe f3chain ofhemoblobin, which leads erythrocytes to abnormal sickle shape, rigidity, deformability and distortion with consequent blood flow obstruction. A
Publicado em: 2002
-
8. Hemolytic anemia with impaired hexokinase activity
Analyses of key glycolytic intermediates in freshly drawn red cells from six related individuals suggest that decreased hexokinase activity underlies the hemolytic process in the two members with overt hemolysis. Low red cell glucose 6-phosphate (G6P) was observed not only in the anemic patients but in the presumptive heterozygotes as well and served as a us
-
9. Detection of hepatitis C virus by PCR in second-generation enzyme immunoassay-seropositive blood donors by using matched pairs of fresh frozen plasma and pilot tube sera.
Between April 1993 and March 1995, 429 of 334,454 (0.13%) blood donations at the Toronto Centre of the Canadian Red Cross were reactive for hepatitis C virus (HCV) by second-generation enzyme immunoassay (EIA-2). Of the 429 EIA-2-positive donations, 189 (44%), 138 (32%), and 102 (24%) were positive, indeterminate, and negative by Second-Generation Recombinan
-
10. NADPH oxidase is an O2 sensor in airway chemoreceptors: Evidence from K+ current modulation in wild-type and oxidase-deficient mice
Pulmonary neuroepithelial bodies (NEBs) are presumed airway chemoreceptors that express the putative O2 sensor protein NADPH oxidase and O2-sensitive K+ channels K+(O2). Although there is a consensus that redox modulation of K+(O2) may be a common O2-sensing mechanism, the identity of the O2 sensor and related coupling pathways are still controversial. To te
The National Academy of Sciences.
-
11. Manganese Peroxidase-Dependent Oxidation of Glyoxylic and Oxalic Acids Synthesized by Ceriporiopsis subvermispora Produces Extracellular Hydrogen Peroxide
The ligninolytic system of the basidiomycete Ceriporiopsis subvermispora is composed of manganese peroxidase (MnP) and laccase. In this work, the source of extracellular hydrogen peroxide required for MnP activity was investigated. Our attention was focused on the possibility that hydrogen peroxide might be generated by MnP itself through the oxidation of or
American Society for Microbiology.
-
12. The A to G transition at nt 3243 of the mitochondrial tRNALeu(UUR) may cause an MERRF syndrome.
OBJECTIVE--To verify the phenotype to genotype correlations of mitochondrial DNA (mtDNA) related disorders in an atypical maternally inherited encephalomyopathy. METHODS--Neuroradiological, morphological, biochemical, and molecular genetic analyses were performed on the affected members of a pedigree harbouring the heteroplasmic A to G transition at nucleoti