The first paper (1) of this series described the action of the chlorides of Na, K, Ca, and Mg on the protoplasm of Ameeba dubia as determined by mlcrurgical technique. A study of the effect of other salts of some of these cations forms the basis of this report. 1 Among those tested were a few which are often employed in preparing buffer solutions and some of general physiological interest, part...

Depolymerization of cellulose offers the prospect of inexpensive sugars from biomass. Breaking the glycosidic bonds of cellulose to liberate glucose has usually been pursued by acid or enzymatic hydrolysis although a purely thermal depolymerization route to sugars is also possible. Fast pyrolysis of pure cellulose yields primarily the anhydrosugar levoglucosan (LG) whereas the presence of natur...

This study analyse the type of release kinetic specific monomers from dental resin composites containing various fluoride-doped calcium phosphates. The behavior urethane dimethacrylate (UDMA), ethoxylated bisphenol-A (bis-EMA) and 1.6-hexanediol ethoxylate diacrylate (HEDA) was evaluated over a period 35 days. Two tailored phosphates doped with different concentrations fluoride salts (VS10% VS2...

The emergence of biological phosphate esters glycerol could have been a crucial step in the origin and evolution life on early Earth as phosphates today play central role biochemistry. We investigate here formation by employing various rock samples, salts, minerals potential catalysts to aid phosphorylation process. report synthesis including glycerol-1-phosphate, glycerol-2-phosphate, cyclic g...

The paper describes our attempt to prove earlier conclusions on the conformation and inter-ionic interactions of protonated Put, Spd and 5pm cations, based initially on the X-ray and IR data of only two types of salts: hydrochlorides and hydrated monohydrogen phosphates. These two sets of salts composed at the beginning only of native polyamines (Put4, Spd3•4 and Spm343) were later on extended ...

background: phosphorus is an indispensable element for the growth of animals and plants. there are several environmental problems related to phosphate; therefore, the technical and economic methods of removing phosphate are of great importance. this study evaluated the efficiency of polyaniline/ni0.5zn0.5fe2o4 magnetic nanocomposite in removing phosphate from aqueous environments. methods: the ...

1. Wright's method for the study of chemotaxis of leucocytes in vitro, slightly modified, has been found to be most satisfactory in the estimation of the degree of chemotaxis of various substances, because it is possible to make an exact quantitative determination of the leucocytes that have migrated from the blood clot and adhere to the surfaces containing the tested substance. 2. The calcium ...

In the synthesis of organic phosphorus compounds by the plant and in their storage in the seed as reserve food the inorganic phosphates play an important part. The phosphorus used in this synthetic process is taken into the plant in inorganic form and used in the building up of complex organic phosphorus compounds such as lecithins, phosphoand nucleo-prot,eins and salts of phytic acid. It is be...