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...

The speciation of Mn, Fe, As and Zn in a fast-growing (0.02mm/yr), shallow-marine ferromanganese nodule has been examined by micro X-ray fluorescence, micro X-ray diffraction, and micro X-ray absorption spectroscopy. This nodule exhibits alternating Fe-rich and Mn-rich layers reflecting redox variations in water chemistry. Fe occurs as two-line ferrihydrite. The As is strictly associated with F...

BACKGROUND Histidine-rich glycoprotein (HRG) regulates coagulation through its ability to bind and neutralize heparins. HRG associates with Zn(2+) to stimulate HRG-heparin complex formation. Under normal conditions, the majority of plasma Zn(2+) associates with human serum albumin (HSA). However, free fatty acids (FFAs) allosterically disrupt Zn(2+) binding to HSA. Thus, high levels of circulat...

1. The development, localization and heterogeneity of acid phosphatase and a Zn(2+)-activated acid phosphatase in cellular fractions of developing chick liver were studied. 2. Acid phosphatase is distributed abundantly in the particulate and soluble fractions. The soluble fraction is rich in Zn(2+)-activated acid phosphatase, which attains its peak activity at about 15 days of incubation. 3. Th...

Simultaneous administration of different phenolic compounds might produce a synergistic effect offering greater activity against chronic non-communicable diseases. This has prompted significant interest in developing nanodelivery systems that simultaneously encapsulate bioactives and protect them from gastrointestinal digestion. work aimed at evaluating the suitability zein (ZN) zein/polysaccha...

In automotive technology, the proper use of thermal insulation materials helps improve performance and life internal equipment reduce maintenance cost. this study, plasma spraying flame are used to prepare coat a new MgO-B2O3-SiO2-Zn powder on SUS304 substrate. The resulting coating as layer formed networked microstructure between substrates material. By validation radiation experiments, effect...

Alkaline cleaning of Zn–Al–Mg coated hot-dip galvanized steel is a central process in the industrial production. This removes carbonaceous contaminants from surface and modifies chemistry profoundly. We implement combined analytical science approach to characterize dissolution mechanism Zn-Al-Mg coatings after treatment with cleaners pH 9.3 12.7, respectively. Our data indicate that weak alkali...

A rechargeable cement-based battery was developed, with an average energy density of 7 Wh/m2 (or 0.8 Wh/L) during six charge/discharge cycles. Iron (Fe) and zinc (Zn) were selected as anodes, nickel-based (Ni) oxides cathodes. The conductivity electrolytes modified by adding short carbon fibers (CF). electrodes produced two methods: powder-mixing metal-coating. Different combinations cells test...