objective(s) anti-helicobacter pylori effects of saffron (crocus sativus l., iridacea) and its major constituents, crocin and safranal, were evaluated. materials and methods macerated aqueous and methanol extracts tested against 45 clinical isolates of helicobacter pylori, using paper disc diffusion method (ddm) on modified egg yolk emulsion agar (eye agar). four antibiotics also tested against...

Methanol is regarded as an available indicator to analyze the aging condition of cellulose insulation. However, diffusion mechanism methanol molecules in paper-oil insulation system still unclear, since it cannot be explored by using only experiments. Given this issue, molecular dynamics simulations were performed investigate molecules. In current work, mean square displacement during process w...

Nanostructures have considerably higher surface areas than their bulk counterparts; thereforesurfaces often play important, sometimes even dominant, roles in the nanostructure properties. Thenanocrystalline and nanotubes have low band gaps and high carrier mobility, thus offeringappealing potential as absorption gas. Interaction between methanol molecules and carbonnanotube is investigated usin...

Background: Herbal distillates had been used for many centuries as herbal medicine in Traditional Persian medicine. Recently, some studies claimed the presence of methanol in different types of herbal distillates which can cause different complications or even death as methanol is highly toxic. The main purpose of this study was to determine methanol content in the commonly-used industrial herb...

Background: Methanol poisoning may result to death and permanent complications, sporadic cases of methanol poisoning are fairly rare and the largest experience are generally gained from managing methanol intoxication epidemics. The main metabolite of methanol is acid formic that is the prime metabolite responsible for toxic effects of methanol and since folate dependent systems are responsible ...

Direct-methanol fuel cell (DMFC) systems are comparatively simple, sometimes just requiring a cartridge and stack with appropriate control devices. The key challenge in these is the accurate determination of flow rates mixture methanol water, fundamental understanding can be gained by computational fluid dynamics. In this work, three-dimensional, steady-state, two-phase, multi-component non-iso...

Mesoporous SBA-15 silica materials functionalized with and without carboxylic acid groups were used to effectively control the morphology of Pt crystals, and the materials thus obtained were applied to methanol oxidation reactions. The Pt particles aggregated to form long spheroids inside the channels in pure SBA-15. When carboxylic acid groups were utilized, the SBA-15(-COOH) material facilita...