نتایج جستجو برای: fe2o3 nanoparticle

تعداد نتایج: 34396  

2016
Luisa H. A. Silva Jaqueline R. da Silva Guilherme A. Ferreira Renata C. Silva Emilia C. D. Lima Ricardo B. Azevedo Daniela M. Oliveira

BACKGROUND Nanoparticles' unique features have been highly explored in cellular therapies. However, nanoparticles can be cytotoxic. The cytotoxicity can be overcome by coating the nanoparticles with an appropriated surface modification. Nanoparticle coating influences biocompatibility between nanoparticles and cells and may affect some cell properties. Here, we evaluated the biocompatibility of...

Journal: :iranian journal of oil & gas science and technology 2014
sahar afzal mohammad nikookar mohammad reza ehsani emad roayaei

nanotechnology has the potential to introduce revolutionary changes to several areas of oil and gasindustry such as exploration, production, enhanced oil recovery, and refining. in this paper, the effectof different concentrations of fe2o3 nanoparticles as a catalyst on the heavy oil viscosity at varioustemperatures is studied. furthermore, the effect of a mixture of fe2o3 nanoparticles and ste...

2002
Chao Liu Timothy J. Klemmer Nisha Shukla Xiaowei Wu Dieter Weller Mihaela Tanase David Laughlin

Chemically disordered B3–7-nm-diameter FePt nanoparticles are synthesized using the airless operation technique based on decomposition of iron pentacarbonyl and reduction of platinum acetylacetonate. The particle solution is then washed and subsequently deposited onto a thermally oxidized Si substrate. Nanoparticle assemblies are formed after solvent evaporation. The samples are heat-treated us...

Journal: :Catalysts 2023

A nano-hollow zeolite-encapsulating ultra-fine Fe nanoparticle catalyst denoted as Fe@n-hS-HT was successfully synthesized through a simple water steam treatment of the Fe@n-hS prepared by “dissolution–recrystallization” (D-R) method. The had hierarchical porous structure and high dispersion Fe2O3 particles with size 3.4 nm. Furthermore, results several characterization methods, such XRD, HAADF...

M Kesmati M KHorshidi

Background & Aims: Iron is an essential element for correct brain function. Iron deficiency changes some behaviors such as anxiety and nociception. Recently, nano-iron, Ferric or ferro oxide (nano-Fe2O3 or Fe3O4), are used in various applications in agriculture, industry and medicine, but their effects on the heath and behavior is not clear. In this study, the effects of Fe2O3 nanoparticles on ...

Journal: :Journal of Pharmaceutical Negative Results 2022

Iron oxide (α-Fe2O3) nanoparticles were fabricated by chemical precipitation and Eco-Friendly routes, using Capparis Spinosa leaves extract, sodium hydroxide iron sulphate heptahydrous. The calcination temperature for α-Fe2O3 was at 600 °C. All prepared samples investigated different physical methods such as XRD, FT-IR, FESEM, EDX DLS. XRD analysis confirmed that all the consist only hematite p...

Journal: :Journal of Nanotechnology 2022

Iron oxide nanoparticles (α- Fe2O3) were synthesized using an unconventional, eco-friendly technique utilizing a Hibiscus rosa sinensis flower (common name, China rose) extract as reducer and stabilizer agent. The microwave method was successfully used for the synthesis of iron nanoparticles. Various volume ratios chloride tetrahydrate to taken heated by oven different periods optimize nanopart...

Journal: :Clean Technologies and Environmental Policy 2021

This research investigates the effects of addition Fe2O3 and Al2O3 nanoparticles (30, 60 90 ppm) Fe2O3–Al2O3 hybrid to pure diesel fuel on combustion, performance emission characteristics a engine. The results indicated that blends improved combustion (in-cylinder pressure heat release rate), (power, consumption thermal exergy efficiency) showed peak increased by 4% rate was 15% in comparison w...

2013
Micaela Glat Hadas Skaat Noa Menkes-Caspi Shlomo Margel Edward A Stern

BACKGROUND Tau dysfunction is believed to be the primary cause of neurodegenerative disorders referred to as tauopathies, including Alzheimer's disease, Pick's disease, frontotemporal dementia and Parkinsonism. The role of microglial cells in the pathogenesis of tauopathies is still unclear. The activation of microglial cells has been correlated with neuroprotective effects through the release ...

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