A new analytical method has been developed for the quantitative determination of ethylene glycol-containing nonionic surfactants, such as polyethylene glycol 8000, polysorbate 80, and Pluronic F-68. These surfactants are commonly used in pharmaceutical protein preparations, thus, testing in the presence of protein is required. This method is based on the capillary gas chromatographic analysis o...

A strictly anaerobic, homoacetogenic bacterium was enriched and isolated from anoxic sewage sludge with polyethylene glycol (PEG) 1000 as sole source of carbon and energy, and was assigned to the genus Acetobacterium on the basis of morphological and physiological properties. The new isolate fermented ethylene glycol and PEG's with molecular masses of 106 to 1000 to acetate and small amounts of...

in this study, physiological and morphological responses of five almond cultivars to drought stress were investigated under in vitro conditions. plantlets from five commercial almond cultivars (supernova’, ‘tuono’, ‘sahand’, ‘ferragnes ’ and ‘shahroud 21’] were established in ms medium containing 0.5 mg per liter bap and then subcultured  in ms proliferation medium containing 1 mg per liter bap...

introduction: macroprolactin is a significant cause of misdiagnosis, unnecessary investigation, and inappropriate treatment in patients with hyperprolactinemia. its frequency has not been clearly established due to technical difficulties in identifying it. most laboratories and clinicians are unaware of macroprolactin interferences in prolactin assays. materials and methods: a comprehensive lit...

The 70% hydroethanolic extracts of Calotropis procera (CP) and Calotropis gigantea (CG) leaves have been evaluated and compared for anti-diarrheal activity using castor oil-induced diarrhea model in rats. Results showed statistically significant reduction in the frequency and severity of diarrhoea produced by castor oil in both CP and CG. The anti-diarrheal effect of CP was found superior to CG...

In this work, we report a unique and facile approach to the manufacture of fluorine-free superamphiphobic paper. Based on principle that Fe3O4 nanoparticles (NPs) arranged along direction magnetic field, mixture NPs polydimethylsiloxane (PDMS) was coated kraft paper through self-assembly thermal-curing at high temperature in fabricating mushroom-like microstructure At an content 75%, radius pil...

the final treatment for diabetes is transplantation of islets of langerhans. one of the new proposed methods for immunological preservation of transplanted cells is coating of cell surface by polyethylene glycol. in this study, the surface of islets of langerhans was coated by cyanuric chloride activated methoxy polyethylene glycol. the effect of polymer coating, at two different reaction times...

Successful castor (Ricinus communis L.) cropping in Greece depends on the yielding ability and yield stability of the cultivars (hybrids or inbreds) as well as the reliability of production systems. The adaptation and yielding ability of 19 modern castor oil genotypes were studied for 3 years in two sites of Northern Greece. Genotypes combining high seed and oil yield and desirable morphologica...

Accidental and intended Ricinus communis intoxications in humans and animals have been known for centuries but the causative agent remained elusive until 1888 when Stillmark attributed the toxicity to the lectin ricin. Ricinus communis is grown worldwide on an industrial scale for the production of castor oil. As by-product in castor oil production ricin is mass produced above 1 million tons pe...