نتایج جستجو برای: γ fe2o3 nanoparticles 11 diacetate
تعداد نتایج: 567594 فیلتر نتایج به سال:
The pathogenesis of many neurodegenerative diseases, including Alzheimer’s disease (AD) is characterized by protein aggregation into amyloid fibrils. In AD, the fibrils are of the amyloid-β (Aβ) peptide. The development of new approaches based on nanotechnology for early detection and potential treatment of AD is of high current interest. This review describes a pioneering approach involving th...
background: resistant strains of pseudomonas aeruginosa to imipenem was medical treatment problem, especiallyin burnt units of hospitals. objectives: this study was conducted to evaluate the antimicrobial effect of fe2o3 nanoparticles alone and functionalized with imipenem on p. aeruginosa starins producing metallo b-lactamases (mbl).materials and methods: a disk diffusion method was used to is...
α‒Fe2O3/MoS2 nanocomposites were synthesized via hydrothermal method and characterized in terms of crystal structure, particle size and morphology, elemental purity and optical properties. Results confirmed the formation of α‒Fe2O3/MoS2 nanocomposites containing hematite nanoparticles with average diameter of 40 nm and MoS2 nanosheets with hexagonal crystal structure and sheet thickness o...
α-fe2o3 (hematite) is the most stable iron oxide under ambient conditions. this transition metal oxide has been extensively investigated because it has unique electrical and catalytic properties. in this report, a novel microwave method for preparation of α-fe2o3 nanoparticles has been developed. the process contained two steps: first, precursor were obtained from a mixed solution of 50 ml of 0...
We present an innovative approach to the production of single-crystal iron oxide nanorings employing a solution-based route. Single-crystal hematite (alpha-Fe2O3) nanorings were synthesized using a double anion-assisted hydrothermal method (involving phosphate and sulfate ions), which can be divided into two stages: (1) formation of capsule-shaped alpha-Fe2O3 nanoparticles and (2) preferential ...
iron oxide (fe2o3) is widely used as a catalyst, pigment and gas sensitive material. in this article, α-fe2o3 nano-rods were first synthesized via a simple chemical method using iron(iii) nitrate 9- hydrate (fe(no3)3.9h2o) as precursor. xrd pattern showed that the iron oxide nanoparticles exhibited alpha-fe2o3 (hematite) structure in nanocrystals. the single-phase α- fe2o3 nano-rods were prepa...
a new type of magnetically-recoverable catalyst was synthesized by the immobilization of h3pw12o40 on the surface of silica-encapsulated -fe2o3 nanoparticles. a series of novel 1,3,5-triaryl pyrazoline derivatives has been synthesized by the reaction of chalcone and phenylhydrazine in the presence of the -fe2o3@sio2-pw12nanoparticles, in high yields. the structures of compounds obtained were...
Present work describes the formation of α-Fe2O3@SiO2 core shell structure by systematic layer by layer deposition of silica shell on core iron oxide nanoparticles prepared via various solvents. Sol-gel method has been used to synthesize magnetic core and the dielectric shell. The average crystallite size of iron oxide nanoparticles was calculated ∼20 nm by X-ray diffraction pattern. Morphologic...
Sm-doped Fe2O3 catalysts, with a homogeneous distribution of Sm in nanoparticles, were synthesized using citric acid-assisted sol-gel method. Kinetic studies show that the reaction rate for NOx reduction optimal catalyst (0.06 mol% doping Fe2O3) was nearly 11 times higher than pure Fe2O3, when calculated based on specific surface area. Furthermore, Fe0.94Sm0.06Ox maintains > 83% conversion 168 ...
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