نتایج جستجو برای: hydroxyapatite encapsulated γ fe2o3
تعداد نتایج: 104864 فیلتر نتایج به سال:
In this paper we describe a strategy for sustained release of nitrogen into the soil. Specifically, ureamodified hydroxyapatite nanoparticles were encapsulated under pressure into cavities of the soft wood of Gliricidia sepium. Nitrogen release of the nanofertilizer composition was studied using soil from three elevations in Sri Lanka (pH 4.2, 5.2 and 7) and compared with that of a commercial f...
Infections after orthopedic surgery are a very unwelcome outcome; despite the widespread use of antibiotics, their incidence can be as high as 10%. This risk is likely to increase as antibiotics are gradually losing efficacy as a result of bacterial resistance; therefore, novel antimicrobial approaches are required. Parabens are a class of compounds whose antimicrobial activity is employed in m...
در این پژوهش، تاثیر افزودن نانوذرات اکسید آهن (γ-Fe2O3) بر راندمان جاذب زیستتوده جلبکی برای جذب کروم مورد بررسی قرار گرفته است. به همین منظور در ابتدا زیستتوده جلبکی خشک و پودر شده، در ادامه از مخلوط زیستتوده جلبکی با نانوذرات اکسید آهن برای حذف کروم از آب آلوده استفاده شد. آب مورد بررسی در آزمایشها دارای چهار غلظت متفاوت از کروم بود، نتایج اندازهگیری غلظت با دستگاه ICP نشان داد که ترکیب ج...
The development and utilization of magnetic nanoadsorption materials with large adsorption capacity easy separation are the research hotspot nowadays. In this study, nanosheet-assembled maghemite (γ-Fe2O3) microspheres were successfully synthesized by an environmental friendly, quick, simple method, for enhanced Sb(III) removal from aqueous solution. Scanning electron microscopy (SEM), X-ray di...
Objectives: The study of core-shell magnetic nanoparticles has a wide range of applications because of the unique combination of the nanoscale magnetic core and the functional shell. Characterization and application of one important class of core-shell magnetic nanoparticles (MNPs), i.e., iron oxide core (Fe3O4/γ-Fe2O3) with a silica shell and outer of gold (Fe3O4-SiO2@Gold (FSG)) in Boron Neut...
Nanocrystalline Fe2O3 thin films are deposited directly on the conduct substrates by pulsed laser deposition as anode materials for lithium-ion batteries. We demonstrate the well-designed Fe2O3 film electrodes are capable of excellent high-rate performance (510 mAh g- 1 at high current density of 15,000 mA g- 1) and superior cycling stability (905 mAh g- 1 at 100 mA g- 1 after 200 cycles), whic...
In order to create Fe2O3 and Fe2O3·H2O nanoparticles, various polymers were used as dispersing agents, and the resulting effects on the dispersibility and nanoparticulation of the iron oxides were evaluated. It was revealed that not only the solution viscosity but also the molecular length of the polymers and the surface tension of the particles affected the dispersibility of Fe2O3 and Fe2O3·H2...
Ancient Jian wares are famous for their lustrous black glaze that exhibits unique colored patterns. Some striking examples include the brownish colored "Hare's Fur" (HF) strips and the silvery "Oil Spot" (OS) patterns. Herein, we investigated the glaze surface of HF and OS samples using a variety of characterization methods. Contrary to the commonly accepted theory, we identified the presence o...
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