Bismuth&d platinum electrodes were investigated as pH indicating electrodes in strong KOH solutions (pH 14-16). The E-pH curve of freshly prepared bismuth electrodes is linear, but the E-pH slope altered with time. It is shown that the slope is constant if the bismuth electrode has been aged via immersion in a concentrated KOH solution. The value of the E-pH slope depends on the KOH concentrati...

Biomimetic coatings constituted of gelatin and nanocrystalline apatite were deposited on titanium substrates from a slightly supersaturated calcium phosphate (CaP) solution enriched with different amounts of gelatin. Although the biopolymer inhibits the crystallization of the inorganic phase, as shown by the reduction of the mean dimensions of the spherical aggregates and of the degree of cryst...

Alkaline phosphatase, which occurs in very high concentration in the mtestinal mucosa (1) and is excreted (2) in the intestine in large quantities during digestion, has been found also in increased concentration in the plasma (3) and especially in the intestinal lymph (4) of the rat after it has been fed a meal containing fat. This increase in the alkaline phosphatase activity of intestinal lym...

" Scire est nescire, nisi id me Scire alius sciret." october, 1923. A large body of evidence has accumulated in support of the electrolytic dissociation theory originally put forward by Arrhenius in 1887, and at the present time the conception of the reaction of a solution, whether acid, alkaline or neutral, is to be regarded either from the point of view of the absolute quantity of neutralisab...

A procedure involving alkaline extraction and solution 31P nuclear magnetic resonance (NMR) spectroscopy was developed and optimized for the characterization of P in animal manures (broiler, swine, beef cattle). Inclusion of ethylenediaminetetraacetic acid (EDTA) in the alkaline extraction solution recovered between 82 and 97% of the total P from the three manures, which represented a significa...

A great challenge in wastewater bioremediation is the sustained activity of viable microorganisms, which can contribute to the breakdown of waste contaminants, especially in alkaline pH conditions. Identification of extremophiles with bioremediation capability can improve the efficiency of wastewater treatment. Here, we report the discovery of an electrochemically active alkaliphilic halotolera...

Carboxymethyl Cellulose (CMC) a compound made from starch of tubers ganyong flour with added methanol, propanol and water. Four process involving alkalization process, karboksimetilasi, neutralization in the making CMC. Carboxymethylization alkazation proess Alkazation is reaction between cellulose soda solution (alkaline) to become alkaline (cellulose soluble solution). rection sodium chloro a...

High pH values have been found necessary for optimum activity of alkaline phosphatase in vitro. The pH values in the living cell structures, on the other hand, are near neutrality: cytoplasm 6.9, nucleus 7.6 (l-3). This definite difference between the pH required for optimum activity and the pH of the living cell indicates that alkaline phosphatase is not optimally active in viva. However, the ...

Denture hygiene is essential because denture biofilm is involved in oral infections and systemic diseases. Although there are chemical agents available on the market, none of them have ideal properties and research on such products is still necessary. The aim of this study was to evaluate the efficacy of a castor bean (Ricinus communis)-based solution for removing denture biofilm, compared to t...