Effect of additives on the hydrothermal synthesis of manganese ferrite nanoparticles

Kurtinaitiene, Marija; Mazeika, Kestutis; Ramanavicius, Simonas; Pakstas, Vidas; Jagminas, Arunas

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자료유형: 학술저널

저자정보: Kurtinaitiene, Marija (State Research Institute Centre for Physical Sciences and Technology) Mazeika, Kestutis (State Research Institute Centre for Physical Sciences and Technology) Ramanavicius, Simonas (State Research Institute Centre for Physical Sciences and Technology) Pakstas, Vidas (State Research Institute Centre for Physical Sciences and Technology) Jagminas, Arunas (State Research Institute Centre for Physical Sciences and Technology)

저널정보: 테크노프레스 Advances in nano research Advances in nano research 제4권 제1호

발행연도: 2016.1

수록면: 1 - 14 (14page)

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Superparamagnetic iron oxide nanoparticles (Nps), composed of magnetite, $Fe_3O_4$, or maghemite, ${\gamma}-Fe_2O_3$, core and biocompatible polymer shell, such as dextran or chitozan, have recently found wide applications in magnetic resonance imaging, contrast enhancement and hyperthermia therapy. For different diagnostic and therapeutic applications, current attempt is focusing on the synthesis and biomedical applications of various ferrite Nps, such as $CoFe_2O_4$ and $MnFe_2O_4$, differing from iron oxide Nps in charge, surface chemistry and magnetic properties. This study is focused on the synthesis of manganese ferrite, $MnFe_2O_4$, Nps by most commonly used chemical way pursuing better control of their size, purity and magnetic properties. Co-precipitation syntheses were performed using aqueous alkaline solutions of Mn(II) and Fe(III) salts and NaOH within a wide pH range using various hydrothermal treatment regimes. Different additives, such as citric acid, cysteine, glicine, polyetylene glycol, triethanolamine, chitosan, etc., were tested on purpose to obtain good yield of pure phase and monodispersed Nps with average size of ${\leq}20nm$. Transmission electron microscopy (TEM), X-ray diffraction, energy dispersive X-ray spectroscopy (EDX), $M\ddot{o}ssbauer$ spectroscopy down to cryogenic temperatures, magnetic measurements and inductively coupled plasma mass spectrometry were employed in this study.

#manganese ferrite #nanoparticles #hydrothermal synthesis #phase purity #magnetic properties

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