This study was conducted to investigate organoclay prepared using montmorillonite clay with zinc oxide (ZnO) nanoparticles and a long-chain organic surfactant hexadecyltrimethylammonium bromide for the removal of nitrate ion from aqueous solutions. Adsorbents were evaluated by X-Ray Diffraction (XRD), Fourier Transform Infra-Red (FT-IR),...

TACE is a disintegrin metalloproteinase that processes tumor necrosis factor and a host of other ectodomains. TACE is biosynthesized as a zymogen and activation requires the removal of an inhibitory pro domain. Little is known about how the pro domain exerts inhibition for this class of enzymes. In order to study the inhibitory properties of the pro domain of TACE, we have expressed it in isola...

Lack of p53 expression or expression of mutant p53 is common in human cancers and is associated with increased tumor growth and resistance to therapies. Significant efforts toward pharmaceutical reactivation of defective p53 by small molecules are therefore underway, targeting the different means that inactivate p53. Indeed, reactivated p53 can lead to tumor destruction. A recent paper in Cance...

Phosphate-based glasses have been examined in many studies as a potential biomaterial for bone repair because of its degradation properties, which can be controlled and allow the release of various elements to promote osteogenic tissue growth. However most of these experiments studied either tertiary or quaternary glass systems. This study investigated a qinternary system that included titanium...

A comprehensive review summarizing the latest advance and critical challenges of flexible zinc-ion hybrid capacitors, with outlooks towards potential future research directions.

Lead is a ubiquitous environmental contaminant; nearly 5% of American children are affected by lead poisoning (a blood lead level (BLL) of 10 mgdL 1 or higher). Even lower BLLs have been shown to cause many subtle health effects in children. Lead, which is found in paint and soil, causes toxicity by several possible mechanisms. Pb interacts with several zinc enzymes or proteins (such as carboni...

Aqueous rechargeable batteries based on zinc anodes are among the most promising systems to replace conventional lithium-ion owing their intrinsic safety, high ionic conductivity, and economic benefits. However, inferior reversibility of anode resulting from dendrites surface side reactions limits practical realization zinc-ion batteries. Herein, we develop a thin but robust polymeric artificia...

Phosphotriesterase from Pseudomonas diminuta catalyzes the hydrolysis of paraoxon and related acetylcholinesterase inhibitors with rate enhancements that approach 10(12). The enzyme requires a binuclear metal center for activity and as isolated contains 2 equiv of zinc per subunit. Here we describe the three-dimensional structure of the Zn2+/Zn2+-substituted enzyme complexed with the substrate ...