Vital Dyes
Mostrando 1-12 de 20 artigos, teses e dissertações.
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1. Existe algum risco no uso de tinturas (henna) nas sombrancelhas das gestantes?
Segundo a Agência Nacional de Vigilância Sanitária (ANVISA), a maioria das informações necessárias na avaliação do risco potencial de um produto cosmético (henna) depende dos ingredientes que compõem sua fórmula
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Podendo se apresentar em pó e creme, e há algumas formulações onde a composição pode apresentar blends (misturas)
Núcleo de Telessaúde Sergipe. Publicado em: 12/06/2023
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2. Estudo da atividade citotóxica do poliacetileno 5-octa-2, 4, 6-triinil-furan-2(5H)-ona / Study of the cytotoxic activity of polyacetylene 5-octa-2,4,6-triinil-furan-2 (5H)-one
Skin cancers are the most common types of cancer in Brazil, and correspond to around 25% of all malignant tumors recorded. Of these, melanoma represents at least 5% and is characterized by its high metastatic power. The development of anticancer agents from natural products is considered critical to pharmacology, and interest in the development of more effec
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/06/2012
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3. Role of brown-rot fungi in the bioremoval of azo dyes under different conditions
The present study is vital to the understanding of bioremediation of structurally different azo dyes by some unusual Brown-rot fungi. Bioremoval of each dye (20 mg l-1) was tested in two different culture media under static and shaking conditions by taking inocula from different fungi. Fungal strains showed varying dyes removal abilities, though considerable
Brazilian Journal of Microbiology. Publicado em: 2010-12
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4. Classificação de ovocitos imaturos de bovinos pela utilização do azul cresil brilhante / Immature bovine oocytes classification by the use of Brilliant Cresyl Blue
The competency of the cumulus-oocyte complex (COC) selected to the in vitro maturation systems (MIV) is directly related to the biotechnical success of embryo in vitro production. Because of that, associated to the morphological selection, the oocyte selection method of Brilliant Cresyl Blue (ACB) has been widely testes and appears as an additional tool to o
Publicado em: 2008
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5. Comparison between morphological and staining characteristics of live and dead eggs of Schistosoma mansoni
Schistosoma mansoni eggs are classified, according to morphological characteristics, as follows: viable mature and immature eggs; dead mature and immature eggs, shells and granulomas. The scope of this study was to compare the staining characteristics of different morphological types of eggs in the presence of fluorescent labels and vital dyes, aiming at dif
Memórias do Instituto Oswaldo Cruz. Publicado em: 2006-10
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6. Cytochemical Mechanisms of Penicillin Action: II. Changes in Reactions of Staphylococcus aureus to Vital Dyes 1
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7. Viability of Cryptosporidium parvum oocysts: correlation of in vitro excystation with inclusion or exclusion of fluorogenic vital dyes.
A viability assay for oocysts of Cryptosporidium parvum based on the inclusion or exclusion of two fluorogenic vital dyes, 4',6-diamidino-2-phenylindole (DAPI) and propidium iodide, was developed by using several different isolates of oocysts. Correlation of this assay with viability measured by in vitro excystation was highly statistically significant, with
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8. Virulent Shigella flexneri Causes Damage to Mitochondria and Triggers Necrosis in Infected Human Monocyte-Derived Macrophages
Shigella flexneri is a gram-negative bacterium that causes bacillary dysentery in humans that is characterized by an acute inflammatory response of the colon. The fate of phagocytes that are infected in vitro with virulent Shigella has been the subject of some investigation and debate. In this study we found that virulent Shigella caused a rapid increase in
American Society for Microbiology.
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9. Isolation of yeast mutants defective for localization of vacuolar vital dyes
An application of flow cytometric sorting is used for isolation of Saccharomyces cerevisiae mutants that mislocalize vacuolar vital dyes. This screen is based on the ability of a lipophilic styryl compound, N-(3-triethylammoniumpropyl)-4-(6-(4-(diethylamino)phenyl)hexatrienyl)pyridinium dibromide (FM4–64), to label endocytic intermediates from the plasma m
The National Academy of Sciences.
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10. A Novel Engineered Peptide, a Narrow-Spectrum Antibiotic, is Effective against Vancomycin-Resistant Enterococcus faecalis
A novel antienterococcal peptide was prepared by fusing the enterococcal cCF10 pheromone to the channel-forming domain of colicin Ia, forming Enterococcus faecalis pheromonicin (PMC-EF). This peptide was bactericidal against vancomycin-resistant Enterococcus faecalis (VRE) organisms. Electron microscopy and vital dyes confirmed increased membrane permeabilit
American Society for Microbiology.
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11. Dual staining of corneal endothelium with trypan blue and alizarin red S: importance of pH for the dye-lake reaction.
Evaluation of corneal endothelial integrity by combined staining with the vital stain trypan blue and the intercellular stain alizarin red S provides a simple, quick technique for visualisation of both damaged and normal cells, thereby permitting the quantification of endothelial cell damage. Adjustment of the pH of the alizarin red S reagent to 4.2 is impor
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12. Techniques for examining Pneumocystis carinii in fresh specimens.
Pneumocystis carinii was examined in fresh preparations of infected rat lung homogenates and tissue culture supernatants by a variety of light microscope techniques, vital dyes, and histologic stains. Phase-contrast microscopy, Nomarski interference-contrast microscopy, and bright-field microscopy with oblique illumination provided excellent views of P. cari