The remarkable nutritional value and health benefits of hemp seeds and their oil extract are well documented. In this study, we explored the use of liquefied dimethyl ether (DME) as a method for obtaining hemp seed oil from hulled hemp seeds. The resulting yields were higher using this ether in ...

Sulfonic acids grafted on inorganic support such as SiO2 and MCM41 was used as catalysts for conversion of methanol to dimethyl ether. In this experimental work the catalysts were compared for their catalytic properties in a continuous flow fixed-bed reactor at temperatures between 180 and 320 °...

Oligomeric oxymethylene ethers (OMEs) are promising fuels for internal combustion engines with self-ignition. A tremendous reduction of soot, nitrogen oxide and hydrocarbon emissions can be realized by employing OMEs. This work describes the synthesis of OMEs from dimethyl ether (DME) and trioxa...

The decreases in fossil fuel reservoirs, along with several recent environmental crises of pollutants emission, have caused us to find more efficient methods for reducing energy consumption. Exergy analysis is the procedure of finding and improving the less exergetically efficient devices in a p...

This study aimed to evaluate whether dietary supplementation with diphenyl diselenide (Ph2Se2) would prevent the impaired immune and inflammatory responses elicited by methylmercury chloride (CH3HgCl) via protective effects on purinergic signaling in fish immune organs. Tissue and lymphocytic nu...

Human exposure to organomercurials like methylmercury (MeHg) may occur by consumption of contaminated seafood, affecting various vital organs especially, brain contributing to neuro disorders. The citrus flavanone, naringenin (NAR) has shown strong antioxidant and anti-inflammatory effects and t...

The photochemical decomposition of trace amounts of methylmercury (II) chloride in aqueous solution by ultraviolet light irradiation was studied. This may be an important environmental pollution problem. Methylmercury (II) chloride was decomposed and transformed to mercury (I) chloride, metallic...

Environmental contamination of mercury (Hg) has caused public health concerns with focuses on the neurotoxic substance methylmercury, due to its bioaccumulation and biomagnification in food chains. The goals of the present study were to examine: (i) the transformation of methylmercury, thimerosa...

Four commercially available sorbents (BioChar (BC), ThiolSAMMS® (TS), SediMite (SM), and Organoclay™ PM-199 (OC-199)) were tested for their ability to sorb methylmercury (MeHg) and MeHg complexed with dissolved organic matter (DOM). Testing sorption behavior with DOM is more representative of th...

We previously reported significantly increased level of putrescine, a polyamine, in the brains of mice administered methylmercury. Moreover, addition of putrescine to culture medium reduced methylmercury toxicity in C17.2 mouse neural stem cells. In this study, the role of ornithine decarboxylas...

Methylmercury is an environmental pollutant that shows selective toxicity to the central nervous system. We previously reported that brain-specific expression of chemokine CCL3 increases in mice administered methylmercury. However, the relationship between CCL3 and methylmercury toxicity has not...

Fishes are the first group of vertebrates that respond when the environment is contaminated with pollutants resulted from anthropogenic activities. The development of the toxicity tests is bringing new evidence about the toxicological effects of the pollutants upon the life forms. Behavioural ab...

The structures, dipole moments, force fields, and anharmonic frequencies for the planar conformation of formamide and thioformamide were calculated using the unscaled 4-31G basis set, augmented with a full set of d functions on the sulfur, and full geometry optimization. Extensive comparison of ...

The Raman and infrared spectra of N-(2-pyridyl)thioformamide and N-(2-pyridyl)-thioacetamide have been measured. The assignment of the bands is aided by the complete normal coordinate treatment for all the vibrations of N-(2-pyridyl)thioformamide and its N-deuterated molecule using a Urey—Bradl...

Vibrational structures of four electronic bands of thioformamide were examined: Three were observed at 8.70, 9.30, and 15.52 eV in the photoelectron spectrum, and one was observed at 230 nm in the absorption spectrum. The four corresponding bands of thioformamide-d2 have also been examined. On t...

Acylated C-glycopyranosyl thioformamides of d-gluco, d-galacto, and d-xylo configuration were obtained by treating the corresponding glycosyl cyanides with hydrogen sulfide in the presence of triethylamine. The thioformamides gave 3,5-bis-(β-d-glycopyranosyl)-1,2,4-thiadiazoles in reactions wit...

Thioformamides have been prepared from isothiocyanates and tri-n-butyltin hydride under mild conditions with high yield.

The rotational barrier around the C–N bond for thioformamide was studied by molecular orbital calculations using the 6–31G** basis set. The calculated barrier height is about 3 kcal mol−1 higher than that of formamide. It appears that the zwitterionic form is more important in thioformamide wh...

The accuracy of the vibrational self-consistent field (VSCF) method for the computation of anharmonic vibrational frequencies in the infrared (IR) spectrum of formamide and thioformamide is investigated. The importance of triple potentials Vijk(3) in the commonly used hierarchical expansion of t...

The tautomeric equilibria of formamide, thioformamide and selenoformamide were studied in the gas phase and in water solution using ab initio quantum chemical calculations. The solvent effects were considered by explicit inclusion of three water molecules, which model a first hydration shell aro...