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Journal of Nanoparticle Research
Erschienen in: Journal of Nanoparticle Research 4/2012

01.03.2012 | Research Paper

One-step reverse precipitation synthesis of water-dispersible superparamagnetic magnetite nanoparticles

verfasst von: Jieying Jing, Yu Zhang, Jiangyu Liang, Qingbo Zhang, Erika Bryant, Carolina Avendano, Vicki L. Colvin, Yiding Wang, Wenying Li, William W. Yu

Erschienen in: Journal of Nanoparticle Research | Ausgabe 4/2012

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Abstract

Hydrophilic functionalization of nanoparticle surface is essential for their biomedical applications. Herein, we report a facile one-step reverse precipitation method to synthesize water-dispersible, biocompatible, and carboxylate-functionalized superparamagnetic magnetite (Fe3O4) nanoparticles with the help of biocompatible sodium citrate salt. Transmission electron microscope (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), zeta potential measurement, dynamic light scattering (DLS), and superconducting quantum interference device (SQUID) were used to characterize the as-prepared magnetite nanoparticles. The size of the as-prepared magnetite nanoparticles was tuned from 27 ± 3.8 to 4.8 ± 1.9 nm by changing the sodium citrate concentration from 25 to 125 mM. The sodium citrate concentration also influenced the water-dispersible stability of the as-prepared magnetite nanoparticles, which was due to the electrostatic repulsion.

Graphical Abstract

Vorheriger Artikel Micellar assemblies from amphiphilic polyurethanes for size-controlled synthesis of silver nanoparticles dispersible both in polar and nonpolar media
Nächster Artikel Study of a potential drug delivery system based on carbon nanoparticles: effects of fullerene derivatives in MCF7 mammary carcinoma cells

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Metadaten
Titel
One-step reverse precipitation synthesis of water-dispersible superparamagnetic magnetite nanoparticles
verfasst von
Jieying Jing
Yu Zhang
Jiangyu Liang
Qingbo Zhang
Erika Bryant
Carolina Avendano
Vicki L. Colvin
Yiding Wang
Wenying Li
William W. Yu
Publikationsdatum
01.03.2012
Verlag
Springer Netherlands
Erschienen in
Journal of Nanoparticle Research / Ausgabe 4/2012
Print ISSN: 1388-0764
Elektronische ISSN: 1572-896X
DOI
https://doi.org/10.1007/s11051-012-0827-3

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