Controllable synthesis, magnetic and biocompatible properties of Fe{sub 3}O{sub 4} and {alpha}-Fe{sub 2}O{sub 3} nanocrystals

Journal Article · Sat Dec 15 04:00:00 EST 2012 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1016/J.JSSC.2012.05.025· OSTI ID:22149922

Zhou, Xi ^[1]; Shi, Yanfeng; Ren, Lei ^[1]; Bao, Shixiong ^[2]; Han, Yu; Wu, Shichao; Zhang, Honggang; Zhong, Lubin ^[1]; Zhang, Qiqing ^[1]

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1. Research Center of Biomedical Engineering, Department of Biomaterials, College of Materials, The Key Laboratory of Biomedical Engineering of Fujian Province, Xiamen University, Xiamen, Fujian 361005 (China)
2. State Key Laboratory for Physical Chemistry of Solid Surfaces and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005 (China)

Iron oxide nanocrystals (NCs) with a series of well-controlled morphologies (octahedron, rod, wire, cube and plate) and compositions (Fe{sub 3}O{sub 4} and {alpha}-Fe{sub 2}O{sub 3}) were synthesized via a facile hydrothermal process. The morphological and compositional control of various iron oxide NCs was based on the regulations of precursor thermolysis kinetics and surfactants. The obtained samples were characterized by XRD, SEM, TEM, SQUID and cytotoxicity test. These as-prepared iron oxide NCs showed excellent magnetic properties and good biocompatibility, paving the way for their high-efficiency bio-separation and bio-detection applications. - Graphical Abstract: Schematic illustration for the formation of iron oxide NCs (Fe{sub 3}O{sub 4} and {alpha}-Fe{sub 2}O{sub 3}) with different controlled morphologies and compositions. Highlights: Black-Right-Pointing-Pointer Iron oxide NCs with a series of well-controlled morphologies (octahedron, rod, wire, cube, and plate) and compositions (Fe{sub 3}O{sub 4} and {alpha}-Fe{sub 2}O{sub 3}) were synthesized via a facile hydrothermal method. Black-Right-Pointing-Pointer The mechanism of the morphological and compositional control process is directly related to precursor thermolysis kinetics and surfactants. Black-Right-Pointing-Pointer These iron oxide NCs exhibited excellent magnetic response and good biocompatibility, which should have great applications in the cell separation and biodetection.

• OSTI ID: 22149922
• Journal Information: Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Vol. 196; ISSN 0022-4596; ISSN JSSCBI
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
CONTROL
DETECTION
EFFICIENCY
FERRITES
HYDROTHERMAL SYNTHESIS
IRON OXIDES
MAGNETIC PROPERTIES
MORPHOLOGY
NANOSTRUCTURES
SCANNING ELECTRON MICROSCOPY
SQUID DEVICES
SURFACTANTS
TOXICITY
TRANSMISSION ELECTRON MICROSCOPY
X-RAY DIFFRACTION