many researchers consider the use of different probes for hybridization assays as suitable for studying the genetic diversity of nitrogen fixing bacteria. in this study for asessing genetic diversity among bradyrhizobium japonicum isolates, two different probes (suca and topa) chosen from the chromosomal genome of bradyrhizobium strain usda 110 were designed, evaluated by dnaman software and im...

Abstract By-products and wastes generated by the oil gas industry must be properly managed treated. Oil-drilling cuttings (ODCs) are major during process of oil/gas exploration extraction. ODCsispre-treated in a sonicator mixing it with synthetic seawater pre-specified composition at varying volume ratios, presence anionic surfactant sodium dodecyl sulphate (SDS) various concentrations (0%, 0.2...

Graphene was dispersed using a tip sonicator and the effect of surfactants were analysed. Sodium Dodecyl Sulphate (SDS) and Polyvinyl Alcohol (PVA) were compared to observe whether or not they had any effect on any de-wrinkling, and secondly whether they aided to achieve better dispersions. There is a huge demand for wrinkle free graphene as this will greatly increase its usefulness in various ...

This paper presents an investigation of the effect graphene nanoparticles on mechanical properties glass fiber reinforced epoxy composite. The composites were fabricated using vacuum infusing molding. Dispersion nanoplatelets was done bath sonicator and stirring. physical examined according to ASTM standards. Results showed that there a significant improvement in tensile flexural by addition 0....

in this study, a cylindrical bolling probe was developed and evaluated for measuring stress in soil under tire traffic. the probe consists of a silicon rubber head for sensing the soil stress, a pvc tube for transferring the liquid pressure, a digital pressure sensor and a syringe for filling the probe with water and adjusting the initial inclusion pressure. a tank with pressurized air was used...

BACKGROUND Liposomes have been successfully used as delivery vehicles for anticancer drugs. Both sonication and microfluidic technologies have been used to produce liposomes. The combination of the two methods was evaluated in this study. MATERIALS AND METHODS The microfluidic devices, mainly comprising micro-dispensers and a sonicator, were used to produce liposomal nanoparticles. Sonication...

Several common metabolites and drugs in the serum in of patients with inflammatory, infectious, autoimmune, immunodeficient, neoplastic, and toxicant-induced diseases can produce artifactual suppression of the [methyl-3H]-thymidine assay, which is widely used to evaluate lymphocyte responsiveness. We have developed a sensitive, semiautomated, fluorescence-enhancement assay in which true immunos...

The objectives of our study were to prepare and evaluate a biodegradable nanoparticulate system of Letrozole (LTZ) intended for breast cancer therapy. LTZ loaded poly(lactide-co-glycolide) nanoparticles (LTZ-PLGA-NPs) were prepared by emulsion-solvent evaporation method using methylene chloride and polyvinyl alcohol. Percentage of drug (with respect to polymer) was selected as formulation varia...

the goal of this study was to compare the effect of heater probe thermocoagulation for massive bleeding of peptic ulcers with a control group. between march 1992 and august 1995 we used heater probe thermocoagulation endoscopically to treat 42 patients with active ugl bleeding or nonbleeding visible vessels at the base of ulcer craters within 2-3 hours of admission. we also selected 42 patients...