In this work, the influence of exposure time in electrolyte during microarc oxidation Mg-Ca-Zn alloy on structural-phase composition and biodegradation is studied. The test results showed that 5 min. not enough to form a uniform coating. coating amorphous consists elements O, P, Mg with F-based inclusions. It has been established formed coatings successfully reduce alloy, as evidenced by signif...

This study synthesized, characterized and determined the electronic optical properties of Zn-TiO2, Zn-TiO2-WO3 Zn-TiO2-SnO2 nano-composite coatings on low carbon steel. It has also effect these corrosion mild steel in saline environment. was with a view to produce an active coating providing alternative hazardous chromium coating. Active multi functional nano crystalline composites were electro...

The respiratory epithelium is vulnerable to noxious substances, resulting in the shedding of cells and decreased protection. Zinc (Zn), an antioxidant and cytoprotectant, can suppress apoptosis in a variety of cells. Here we used the novel Zn-specific fluorophore Zinquin to visualize and quantify labile intracellular Zn in respiratory epithelial cells. Zinquin fluorescence in isolated ciliated ...

Different types of collagen vary in their influence on platelet reactivity. Collagen Types III, IV, and V were obtained from human placental tissue, and Type I collagen was prepared from rat skin. Each collagen type was coated onto a plastic surface. Each collagen-coated surface or appropriate plastic surface control was studied using citrated human 51Cr-labeled platelet-rich plasma in both the...

Indium (In) is commonly hosted in Sn-rich deposits but rarely reported in Sn-poor deposits. However, an In-rich and Sn-poor skarn deposit, the Qibaoshan Cu-Zn-Pb deposit, has been identified in south China. Geochemical analyses were undertaken on 23 samples representing the following mineral assemblages: sphalerite-pyrite, pyrite-chalcopyrite, pyrite-sphalerite-galena-chalcopyrite, pyrite, magn...

By ST u’ iIsLAw SZMIGIELSKI AND JOANNA Ln’w T HE PHYSIOLOGIC and biochemical role of zinc (Zn), as a cofactor of many important enzymes ( carboxypeptidase, dehydrogenases, alkaline phosphate, carboanhydrase) is now well established, but our present knowledge of zinc metabolism and transport in the human body is still incomplete. Vallee1 estimated Zn content in whole blood at 880 gamma/100 ml. H...

Disposal packages containing high heat generating spent nuclear fuels (SNF) require improved heat transfer to keep the peak cladding temperature from going above the tolerance limit. Filling the accessible void spaces between the container and the SNF with a high heat conducting metal is a potential solution. In metal casting, it is well known that a gap forms at the metal-mold interface due to...

This study investigated the corrosion morphology of arc-sprayed Zn and Zn85-Al15 coatings with without sealing treatment under simulated defect conditions. The hole was carried out by Conventional Impregnation Sealing (CIS). performance two assessed employing morphological analysis, chemical composition, electrochemical studies. results showed that treatments better than un-sealing coating. Thr...

A soil profile contaminated as a result of Zn smelting operations from the historic Palmerton, PA smelting facility was characterized using X-ray absorption fine structure spectroscopy (XAFS) and X-ray diffraction (XRD) as bulk techniques, coupled with electron microprobe (EM), and microfocused XAFS as microscopic techniques to determine the chemical forms of Zn and elucidate its geochemical fa...