The dielectric constant impacts on oriented attachment as well solubility and morphology.

a simple hydrothermal method was designed for the synthesis of the nanostructure barium phosphonate in presence of cetyltrimethylammonium bromide (ctab) or sodium dodecyl sulfate (sds) as surfactant. ft-ir, edax, xrf, xrd, sem were used to characterize this material. effect of solvent on morphology complex was discussed. thermogr avimetric analysis (tga) shows the existence of porosity and stab...

The 3.49 Ga Dresser Formation has been considered to host evidence of the earliest microbes metabolising sulfur species on Earth. However, previous bulk analyses and in situ measurements conclude disparate metabolisms based opposite ΔS. This study first established generations pyrite growth, then measured multiple isotopes using Sensitive High Resolution Ion MicroProbe-Stable Isotope analyses. ...

Introduction. In addition to good biological properties, biomaterials should also possess appropriate physical properties in order provide stability and longevity at the place of application. The aim this work was evaluate an experimental nanostructured material based on calcium aluminate (CAL) silicate (CS). Material method. research used synthesized by hydrothermal solgel method from individu...

In this work, the solubility dependence of radioactive baric samples under influence of microwave radiation (MWR) has been investigated at various concentrations of HCl after irradiation of BaO target at a flux of thermal neutrons. It is established that the use of MWR for dissolution of a sparingly-soluble barium oxide will accelerate a dissolution process at almost an order of magnitude in co...

A turbidimetric method for inorganic sulfates in urine, based on the precipitation of barium sulfate, is adapted to the AutoAnalyzer. Coating of the flowcell with BaSO4is avoided by an inter-sample air rinsing. Sampling rate is 40/h. Inorganic urinary sulfate determinations are of interest for the evaluation of endogenous acid production (1) and in experimental evaluation of the acid-excreting ...