نتایج جستجو برای: iron oxide nanoparticle
تعداد نتایج: 332910 فیلتر نتایج به سال:
Background. It is becoming increasingly clear that no single imaging modality carries all of the properties necessary for comprehensive quantitative diagnostics with high spatial and temporal resolution, high sensitivity of detection, and tomographic capability. Therefore, in order to collect truly thorough information through imaging, one needs to employ a multimodality approach. With this in ...
Metallic nanoparticles have huge applications in all the fields including agriculture and its allied sciences. This study aims at evaluating possible implications of iron oxide nanoparticles on the growth and development of rice (Oryza sativa L.). Rice is feeding hunger of half of the World’s population and yet found to be highly sensitive towards iron deficiency especially at seedling stage. T...
The synthesis of iron oxide nanocrystals from reagents taken from high street sources using thermal decomposition of an iron-fatty acid precursor in a high boiling point solvent in the presence of surfactants is presented. The nanocrystals were characterised using a variety of techniques including: electron microscopy, X-ray dispersive spectroscopy, infrared spectroscopy, X-ray diffraction (XRD...
Phase changes in blood oxygenation-level dependent (BOLD) fMRI have been observed in humans; however, their exact origin has not yet been fully elucidated. To investigate this issue, we acquired gradient-echo (GE) BOLD and cerebral blood volume (CBV)-weighted fMRI data in anesthetized cats during visual stimulation at 4.7T and 9.4T, before and after injection of a superparamagnetic contrast age...
To reduce the information gap between human neuroimaging and macaque physiology and anatomy, we mapped fMRI signals produced by moving and stationary stimuli (random dots or lines) in fixating monkeys. Functional sensitivity was increased by a factor of approximately 5 relative to the BOLD technique by injecting a contrast agent (monocrystalline iron oxide nanoparticle [MION]). Areas identified...
in this research, polyvinylchloride based composite heterogeneous cation exchange membranes were prepared by the solution casting technique. chitosan-co-iron nickel oxide nanoparticles were utilized as membrane surface modifier to improve the membranes electrochemical properties. the effect of additive nanoparticle concentration in the modifier solution on the properties of composite membranes ...
BACKGROUND Ferumoxytol is a safe and effective parenteral therapy used for the treatment of iron deficiency anaemia that has recently been approved for use in North America and in Europe. METHODS Ferumoxytol consists of a superparamagnetic iron oxide (SPIO) core, which causes T1, T2 and T2* shortening effects, and a carbohydrate shell, which results in a prolonged intravascular half life. R...
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