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D.D. HEREA1,* , H. CHIRIAC1
This paper describes the one-step preparation and surface functionalization with 3-aminopropyltriethoxysilane (APTS) of magnetite nanoparticles during their synthesis by using only Fe2+ in alkaline medium. Mean crystal size calculated from Xray diffraction spectra was 10.8 nm for uncoated magnetite, while magnetic particle diameter calculated from magnetization loops varied between 9.1 nm - 11 nm, depending on the APTS concentration. Activation of magnetite nanoparticles with amino-silanes leaded to the decreasing of saturation magnetization from 41.4 emu/g for uncoated magnetite to 18-20 emu/g for coated magnetite.
Nanoparticles, magnetite, 3-aminopropyltriethoxysilane, Bio-medical applications.
D.D. HEREA, H. CHIRIAC, One-step preparation and surface activation of magnetic iron oxide nanoparticles for bio-medical applications, Optoelectronics and Advanced Materials - Rapid Communications, 2, 9, September 2008, pp.549-552 (2008).
Submitted at: July 14, 2008
Accepted at: Aug. 28, 2008
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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