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Monodisperse magnetic nanoparticles: Preparation and dispersion in water and oils
Abstract
Nanometric maghemite and cobalt ferrite particles are chemically synthesized. The process produces particles polydisperse in size. The positive charges of their surface allow one to disperse them in aqueous acidic solutions and to obtain dispersions stabilized through electrostatic repulsions. Increasing acid concentration (in the range 0.1 to 0.5 mol.L−1), interparticles repulsions are screened and phase transitions are induced. Using this phenomenon, we describe a two-step size sorting process, in order to get significant amounts of nanometric monosized particles (with diameters monitored between typically 6 and 13 nm). As the surface of the latter is not modified by the size sorting process, usual procedures are used to disperse them in several aqueous or oily media.
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Cited by
Laurent, S., Forge, D., Port, M., Roch, A., Robic, C., Vander Elst, L., & Muller, R. N. (2008) · Chemical Reviews · doi:10.1021/cr068445e · Cited by 6,852
Fortin-Ripoche, J.-P., Martina, M. S., Gazeau, F., Ménager, C., Wilhelm, C., Bacri, J.-C., Lesieur, S., & Clément, O. (2006) · Radiology · doi:10.1148/radiol.2392042110 · Cited by 148
Metadata
- Authors
- Lefebure, S., Dubois, E., Cabuil, V., Neveu, S., & Massart, R.
- Venue
- Journal of Materials Research
- Published
- 1998-10
- Volume
- 13
- Issue
- 10
- Pages
- 2975-2981
- ISSN
- 0884-1616 (ISSN-L)
- 0884-2914
- 2044-5326
- OpenAlex
- W2041941824
- Cited by
- 186
- References
- 0
- FWCI
- 2.12
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Monodisperse magnetic nanoparticles: Preparation and dispersion in water and oils. https://app.cochat.ai/papers/10.1557/jmr.1998.0407
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- Lefebure, S., Dubois, E., Cabuil, V., Neveu, S., & Massart, R. (1998). Monodisperse magnetic nanoparticles: Preparation and dispersion in water and oils. Journal of Materials Research. https://doi.org/10.1557/jmr.1998.0407
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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