Weathering of primary copper sulfides leads to the formation of copper sulfate minerals, among them antlerite, Cu3(SO4)(OH)4, brochantite, Cu4(SO4)(OH)6, and posnjakite, Cu4SO4(OH)6·H2O. In this work, we performed a series of experiments to determine the stability of these phases. First, batche...

Mechanochemical phenomena including mechanical activation and direct reaction have been widely observed particularly from dry grinding operation and various applications of the phenomena have been reported in many fields of chemistry. A new approach was introduced here to trigger partial reactio...

The occurrence of pharmaceuticals in the environment has received wide attention, and they have recently been considered as emerging organic contaminants. Since conventional wastewater processes are not particularly effective, the development of new technology that can completely remove pharmace...

Investigations into an assessment of the efficiency of the sorption of copper and nickel, from the pulps deriving from the leaching of low-grade sulfide ores (Kingashsky deposit, Russia) by hydrochlorination, using the chelating resin Purolite S930, were carried out. The recovery characteristics...

The US Food and Drug Administration’s Office of Food Additive Safety in the Center for Food Safety and Applied Nutrition conducts safety assessments of food additives, including food-contact substances such as polymeric and oligomeric materials that have the potential to migrate to food. Tradit...

Polydimethylsiloxanes exhibit hydrophobic behaviour and poor wettability. These features impose some problems with the clinical performance of the material when used for the construction of intraoral and extraoral facial prostheses. Surface active agents were added to modify the surface energy o...

Linear siloxanes were synthesized with SiH groups at one end of the chain and light stabilizer or antioxidant groups at the other end. Silanolates with hindered amine or hindered phenol groups were first prepared and subsequently used as initiators of the anionic ring opening polymerization of h...

This article has been retracted: please see Elsevier Policy on Article Withdrawal (http://www.elsevier.com/locate/withdrawalpolicy).This article has been retracted at the request of the Editor-in-Chief.The authors have plagiarized significant parts of the text of an article that had already appe...

Structures, synthesis, and ring-opening polymerization (ROP) processes of cyclic organosilicon monomers are presented. Besides cyclosiloxanes, which are technologically the most important organosilicon monomers, the ROPs of cyclosilanes and related monomers such as cyclic carbosilanes, carbosilo...

Structures, synthesis, and ring-opening polymerization (ROP) processes of cyclic organosilicon monomers are presented. Besides cyclosiloxanes, which are technologically the most important organosilicon monomers, the ROPs of cyclosilanes, and related monomers such as cyclic carbosilanes, carbosil...

This chapter is an update on the developments in the field of silicones during the last decade, emphasizing the interrelations between various areas and embracing emerging ones (especially, new materials). Monomers and precursors to silicones, polymerization and co-polymerization reactions, and ...

Useful silicone pressure-sensitive adhesives (PSAs) have been prepared from a newly developed high solids silicone technology. The platinum-catalysed silicone compositions consist of siloxane resin and hydrosilylation-reactive silicone fluids containing silicon-bonded vinyl and hydride functiona...

A decade ago one-dimensional silicone nanofilaments (1D-SNF) such as fibres and wires were described for the first time. Since then, the exploration of 1D-SNF has led to remarkable advancements with respect to material science and surface science: one-, two- and three-dimensional nanostructures ...

This article deals with the preparation and modification of resins, as found in patents and articles and exhaustively reported here, and their characterization and functionalization, complemented by our own experimental experience. First, we present the different syntheses of resins according to...

Polysilalkylene siloxanes or ‘hybrid silicones’ are a comparatively new class of polymeric materials combining the chemical properties of silicones and paraffins in a unique way. They can be used as elastomers with remarkable thermal stability and chemical resistance, as wetting agents, surfac...

The structure of plantamajoside, a phenylpropanoid glycoside isolated from Plantago major subs major, is deduced from chemical, spectral and other physical evidence, to be 3,4-dihydroxy-β-phenethyl-O-β-d-glucopyranosyl-(1 →3)-4-O-caffeoyl-β-d-glucopyranoside. The Minimum Inhibitory Concentra...

Plantamajoside (PMS) is a major compound of Plantago asiatica and possesses anti-tumor activity. However, the effect of PMS on esophageal squamous cell carcinoma (ESCC) and the underlying mechanism of action are unclear. The present study aimed to evaluate the effect of PMS on lipopolysaccharide...

Cadmium (Cd), an environmental and industrial pollutant, generates free radicals responsible for oxidative stress. Cd can also lead to various renal toxic damage such as the proximal tubules and glomerulus dysfunction. Plantamajoside (PMS), a major compound of Plantago asiatica (PA), was reporte...

Plantago asiatica is a medicinal and dietary plant rich in polyphenolic compounds such as phenylpropanoid glycosides plantamajoside and acteoside. The aims of the present study were to develop a new and sensitive method for simultaneous determination of plantamajoside and acteoside and investiga...

Despite developments in the knowledge and therapy of acute lung injury in recent decades, mortality remains high, and there is usually a lack of effective therapy. Plantamajoside, a major ingredient isolated from Plantago asiatica L. (Plantaginaceae), has been reported to have potent anti-inflam...