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New methodology for pH measurements in fuel ethanol using glass electrode
(2011-01-01)
Studies carried out with glass electrode in anhydrous ethanol and ethanol-water solutions for measuring pH values have shown that this parameter depends on the solution composition, the contact time with the solution, the ...
pH at the micellar interface: Synthesis of pH probes derived from salicylic acid, acid-base dissociation in sodium dodecyl sulfate micelles, and Poisson-Boltzmann simulation
(Elsevier B.V., 2006-05-01)
The study of the H+ concentration at the micellar interface is a convenient system for modeling the distribution of H+ at interfaces. We have synthesized salicylic acid derivatives to analyze the proton dissociation of ...
Modulatory effects of acidic ph and membrane potential on the adsorption of ph-sensitive peptides to anionic lipid membrane
(2021-05-01)
Anionic lipid membrane electrostatic potential and solution pH can influence cationic peptide adsorption to these bilayers, especially those containing simultaneously acid and basic residues. Here, we investigate the effects ...
Effect of calcium chloride on the pH values of several formulations of calcium hydroxide mixed with chlorhexidine digluconate
(2013)
This study evaluated the effect of the addition of 5% calcium chlorite (CaCl2) on pH values in calcium hydroxide pastes (CH), with or without 2% chlorhexidine digluconate (CHX) used as vehicle, in several periods analysis. ...
Layer-by-layer films containing SiO2 nanoparticles as field-effect pH sensors
(American Scientific Publishers - ASPValencia, 2013-02)
Devices for pH monitoring based on separative structures and high input impedance readout circuit were fabricated using silicon dioxide nanoparticles (SiO2-Np). SiO2-Np were self-assembled onto gold substrates via ...
An impedance study about the effect of pH on the electron transport rate at poly(o-aminophenol) film electrodes
(Bentham Science Publishers, 2014-06)
Impedance measurements on poly(o-aminophenol) (POAP) film electrodes in solutions of different pH were carried out. Impedance spectra were interpreted in terms of the modified electron hopping model described in F.J. ...
Comparison among different pH values of Rhodamine B solution impregnated into mesoporous silica
(2013)
We studied the behavior of different pH values of Rhodamine B solution impregnated into pores of mesoporous silica, through structural characterization techniques, such as scanning electron microscopy and porosity measurements, ...
Influence of pH on the effectiveness of hydrogen peroxide whitening
(2014-01-01)
Objective: To evaluate the influence of pH on the bleaching effect of hydrogen peroxide on chromogen agents. Method: Hydrogen peroxide 50% was mixed with red wine or with an alcoholic solution of tobacco in glass cuvettes, ...
Effects of water pH on gamete activation, embryonic development, and larval normality in Prochilodus lineatus
(2015-01-01)
We investigated the effects of breeding water pH on the spermatic motility, artificial fertilization, and initial development of offspring in curimba, Prochilodus lineatus. After hormonal induction, we conducted gamete ...