نتایج جستجو برای: hydroxyapatite encapsulated γ fe2o3
تعداد نتایج: 104864 فیلتر نتایج به سال:
A series of magnetic γ-Fe2O3, Fe3O4, and Fe nanoparticles have been successfully introduced into the mesochannels of ordered mesoporous carbons by the combination of the impregnation of iron salt precursors and then in situ hydrolysis, pyrolysis and reduction processes. The magnetic nanoparticles are uniformly dispersed and confined within the mesopores of mesoporous carbons. Although the as-pr...
In this study, hydrogen production from starch wastewater using anaerobic sludge immobilized on maghemite nanoparticles (γ-Fe2O3) was investigated. Two anaerobic baffled reactors (ABR-1 and ABR-2) were operated at organic loading rate (OLR) of 3.63±0.43 g-COD/L.d and hydraulic retention time (HRT) of 10 h. The ABR-1 was inoculated with 3.5 g-VSS/L preheated sludge at 90°C for 30 minutes. The se...
This study was supported by EU FP7 grant GlowBrain (REGPOT–2012–CT2012– 316120) to S.G. and by a University of Trento Startup Grant and the Cassa di Risparmio di Trento e Rovereto Grant n. 2011.0251 to S.C. Since the central nervous system shows very little capability for self-repair following ischemic injury, regenerative medicine approaches are increasingly interested in the use of neural ste...
Iron oxides exist in a rich variety of structures and occur in a great variety of settings, from geological to nanoscale technological applications. Ferrous and ferric iron oxides present seven crystalline phases, the more common are α-Fe2O3 (hematite), γ-Fe2O3 (maghemite), Fe3O4 (magnetite) and Fe1-xO (wustite); the less commonly found are the βand ε-Fe2O3 phases and the low-temperature rhombo...
Different aspects of biominerals formed by apatite and DNA have been investigated using computer modeling tools. Firstly, the structure and stability of biominerals in which DNA molecules are embedded into hydroxyapatite and fluoroapatite nanopores have been examined by combining different molecular mechanics methods. After this, the early processes in the nucleation of hydroxyapatite at a DNA ...
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