نتایج جستجو برای: polyethylene oxide
تعداد نتایج: 205640 فیلتر نتایج به سال:
2.4. Sol-Gel Reactions 2070 2.5. Polyol Methods 2071 2.6. Flow Injection Syntheses 2071 2.7. Electrochemical Methods 2071 2.8. Aerosol/Vapor Methods 2071 2.9. Sonolysis 2072 3. Stabilization of Magnetic Particles 2072 3.1. Monomeric Stabilizers 2072 3.1.1. Carboxylates 2073 3.1.2. Phosphates 2073 3.2. Inorganic Materials 2073 3.2.1. Silica 2073 3.2.2. Gold 2074 3.3. Polymer Stabilizers 2074 3.3...
In this study, aluminum oxide nanoparticles were synthesized in plasma discharge water medium under the intensive ultrasonic cavitation. The obtained examined by dynamic light scattering, scanning electron microscopy, ξ-potential measurements. It was shown that particles had spherical shape with size about 20-30 nm and stable to aggregation sedimentation. values of surface measured when interac...
This work proposes a new method for Co(II) determination based on the use of the triblock copolymer as micellar medium instead of chloroform. The proposed strategy is environmental friendly because the copolymer is biodegradable and nontoxic. The method is based on the formation of a cobalt-1-nitroso-2-naphthol complex, in the micellar triblock copolymer compound solution constituted by polyeth...
The synthesis of designer solid-state materials by living organisms is an emerging field in bio-nanotechnology. Key examples include the use of engineered viruses as templates for cobalt oxide (Co(3)O(4)) particles, superparamagnetic cobalt-platinum alloy nanowires and gold-cobalt oxide nanowires for photovoltaic and battery-related applications. Here, we show that the earthworm's metal detoxif...
Colonization of roots by Pseudomonas chlororaphis O6 (PcO6) involves root surface coverage through surface motility and biofilm formation. Root colonization and the production of antifungal phenazines are important in the ability of the bacterium to protect plants against pathogens. In this in vitro study we report that both biofilm formation and phenazine production are differentially influenc...
Background and purpose: The aim of this study was to determine the effects of chitosan/polyethylene oxide (Cs/PEO) scaffold and human mesenchymal stem cells derived from Wharton’s jelly (WJ-hMSCs) on regeneration of the sciatic nerve injury in rats. Materials and methods: In this research, 42 adult male rats were divided into six groups. 1-Normal (intact) group: healthy rats without an...
Objective(s):Iron oxide nanoparticles have found prevalent applications in various fields including drug delivery, cell separation and as contrast agents. Super paramagnetic iron oxide (SPIO) nanoparticles allow researchers and clinicians to enhance the tissue contrast of an area of interest by increasing the relaxation rate of water. In this study, we evaluate the dependency of hydrodynamic si...
Homogenous cesium tungsten tri-oxide (CsAW1O3) and powder was prepared by solvothermal reaction using (NH4)10H2(W2O7)6 and Cs2CO3 aqueous solution followed by annealing. The cesium doped tungsten tri-oxide (CsAW1O3) nanocomposite films was deposited by the sol-gel bar-coating method onto PET-film (polyethylene terephthalate film, thickness 186 μm) substrate. The structure and sizes of ceramic p...
Cerebral blood flow (CBF) was determined in the rat under 70% nitrous oxide anesthesia and pentobarbital anesthesia. The application of the Fick principle technique of Kety et al. was modified utilizing 133Xe infused intravenously steadily for 30 seconds, at which time the animal was decapitated and the head frozen in liquid nitrogen. A prior femoral artery to femoral vein shunt was led through...
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