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Ion beam analysis of a-C:H films on alloy steel substrate
An a-C:H thin film deposited by plasma immersion ion implantation and deposition on alloy steel (16MnCr5) was analyzed using a self-consistent ion beam analysis technique.In the self-consistent analysis, the results of ...
Calcium hydroxide root canal sealers: Evaluation of pH, calcium ion concentration and conductivity
The calcium hydroxide ionization of four root canal sealers (Sealapex, CRCS, Sealer 26, and Apexit) was studied by measuring conductivity and pH and by conducting atomic absorption spectrophotometry. Samples 6 mm in diameter ...
SIMPLE AND ACCURATE EVALUATION OF HYDROGEN-ION CONCENTRATIONS IN AQUEOUS-SOLUTIONS OF FIXED IONIC-STRENGTH
(Elsevier B.V., 1979-01-01)
pH and calcium ion release evaluation of pure and calcium hydroxide-containing Epiphany for use in retrograde filling
(Universidade de São Paulo (USP), Faculdade de Odontologia de Bauru, 2011-01-01)
Objective: Hydroxyl (OH(-)) and calcium (Ca(++)) ion release was evaluated in six materials: G1) Sealer 26, G2) White mineral trioxide aggregate (MTA), G3) Epiphany, G4) Epiphany + 10% calcium hydroxide (CH), G5) Epiphany ...
Apocynin: Chemical and biophysical properties of a NADPH oxidase inhibitor
Apocynin is the most employed inhibitor of NADPH oxidase (NOX), a multienzymatic complex capable of catalyzing the one-electron reduction of molecular oxygen to the superoxide anion. Despite controversies about its ...
Evaluation of the combined solar TiO2/photo-Fenton process using multivariate analysis
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 ...
pH-changes during intracoronal bleaching: An in vivo study
Objectives: This study aimed to measure pH changes during 14 days intracoronal bleaching with hydrogen peroxide/sodium perborate and carbamide peroxide/sodium perborate. Materials and methods: Twenty patients presenting ...
Production, characterization and properties of polysaccharide depolymerizing enzymes from a strain of Curvularia inaequalis
Xylanase, β-glucosidase, β-xylosidase, endoglucanase and polygalacturonase production from Curvularia inaequalis was carried out by means of solid-state and submerged fermentation using different carbon sources. β-Glucosidase, ...
Occurrence of killer yeasts in leaf-cutting ant nests
Killer activity was screened in 99 yeast strains isolated from the nests of the leaf-cutting ant Atta sexdens against 6 standard sensitive strains, as well as against each other. Among this yeast community killer activity ...