The influence of gamma-ray irradiation on the optical properties 50P2O5–30CaO–20Na2O glass and quaternary ones prepared with [CuO]/[Na2O] molar ratios 0.1, 0.7 1.5 at fixed [P2O5]/[CaO] is reported. glasses by melting were subjected to 100 kGy Co-60 gamma ray studied transmission photoluminescence (PL) spectroscopy. gamma-irradiated ternary developed a ruby-red color showed absorption features ...

A new forcefield model was developed for the computer simulation of phosphate materials that have many important applications in the electronics and biomedical industries. The model provides a fundamental basis for the evaluation of phosphate glass structure and thermodynamics. Molecular dynamics simulations of a series of lithium phosphate glass compositions were performed using the forcefield...

Periodontal disease is characterized by the destruction of periodontal tissues. Various methods of regenerative periodontal therapy, including the use of barrier membranes, bone replacement grafts, growth factors and the combination of these procedures have been investigated. The development of biomaterials for tissue engineering has considerably improved the available treatment options above. ...

conclusions: in the current study, quality of life was correlated with serum calcium level, calcium-phosphate product, and serum pth level, while hospitalization was correlated only with serum phosphorus level. however, quality of life was inversely correlated with hospitalization. background: significant impairment in health-related quality of life (hrqol) among dialysis patients could be part...

the paper is focused on the formation of calcium phosphate nanoparticles (cp) in polyelectrolyte-modified microemulsions, in a microemulsion template phase consisting of cyclohexane, water, anionic surfactantant and cosurfactant, in the presence of anionic and cationic polyelectrolyte. it is shown that polyelectrolyte, can be incorporated into the individual inverse microemulsion droplets. the ...

Silica refractory bricks are used especially in the metallurgical industries, due to desirable properties such as particularly their high melting point and their rigidity and strength at high temperatures. In this research, different amount of SiC were added to Silica refractory containing different binders such as Borax, Boric acid, Calcium nitride, Sodium tri poly phosphate, Sodium hexametaph...

The present paper describes the application of a solid phase extraction system in order to separate traces of calcium from glass and ceramics for its spectrophotometric determination. The method is based on the extraction of calcium from sodium hydroxide solution by tri-n-butyl phosphate (TBP) loaded polyurethane foam (PUF), followed by its elution in hydrochloric acid. The spectrophotometric m...

OBJECTIVES We studied the effect of preparing donor human milk (DHM) with commonly used nutritional additives on the dialyzability of calcium and phosphate. We hypothesized that the additives to DHM would decrease the dialyzability of calcium and phosphate when prepared according to hospital protocols. METHODS An in vitro system simulating premature infant digestion was developed to measure d...

Sir, Dr Yuan recently reported the interesting case of a 23year-old dialysis patient with extensive calcifications, including lung calcifications [1]. We similarly encountered a young patient who had developed severe lung calcifications, which proved reversible after intensifying the dialysis regimen and optimization of the calcium–phosphate regulation. This patient is a 29-year-old woman with ...