The different physical properties of proteins, such as osmotic pressure, swelling, and viscosity, vary in a similar way under the influence of changes in the concentration of hydrogen ions or under the influence of neutral salts or under the influence of the valency of the ion in combination ~th the protein. This fact suggests that the variations of these three physical properties may have a co...

The purpose of this study was to evaluate the incompatibility of ceftriaxone sodium with calcium-containing products using the ionic product of precipitation, and the measurement of insoluble microparticles using a light obscuration particle counter. Appropriate volumes of 2% (w/v) calcium chloride solution were added to 0.4-2 mg/ml ceftriaxone isotonic sodium chloride solution, to make solutio...

Nickel based alloys have been developed as materials offering superior corrosion fatigue. The fatigue performance of IN600, IN601 and C22 was examined in increasing saline solution severity of 3.5% sodium chloride at pH = 6.8. Results of fatigue and corrosion fatigue tests indicate that the fatigue lives of IN600, IN601 and C22 tested in 3.5 % sodium chloride solution (NaCl) are essentially the...

A pure sodium chloride solution, at the concentration in which this salt exists in sea-water, may be poisonous to marine organisms, as was first proven by Loeb,’ who found that the young of a marine fish (Fundulus) soon die in y to F solution of sodium chloride. That death is due to the poisonous action of the sodium chloride, and not merely to the absence of other constituents of the sea-water...

Preparation of Tissue-Studies were performed on the isolated urinary bladder of the toad, Bujo marinus. Animals were pithed and the two halves of the bladder rapidly removed through a ventral incision. The tissue was rinsed in Ringer’s solution before use. For the study of the oxygen consumption of various toad tissues, small intestine, stomach, heart, ventral abdominal skin, and skeletal muscl...

A pure sodium chloride solution, at the concentration in which this salt exists in sea-water, may be poisonous to marine organisms, as was first proven by Loeb,’ who found that the young of a marine fish (Fundulus) soon die in y to F solution of sodium chloride. That death is due to the poisonous action of the sodium chloride, and not merely to the absence of other constituents of the sea-water...

Preparation and crystallization G6-amylase from alkalophilic Bacillus sp.707 was expressed by Bacillus subtilis 207-25. The enzyme was crystallized by the hanging drop vapor diffusion method using the reservoir solution containing 50% (v/v) 2methylpentane-2, 4-diol, 100 mM Tris-HCl (pH 8.5) and 200 mM ammonium phosphate. Calcium chloride and sodium chloride were added to final 1 mM in the drop ...

Background: Mineral trioxide aggregate (MTA) exhibits several properties of an ideal root-end filling. It, however, has certain disadvantages such as long setting time, difficult handling characteristics, and limited antimicrobial activity. In order to improve its properties, several commonly used reagents have been used instead of sterile water. Hence the objective of this study was to evaluat...