Preparation and characterization of functional silica hybrid magnetic nanoparticles
- Digigow, Reinaldo G. Adolphe Merkle Institute, University of Fribourg, Switzerland - Chemistry Department, University of Fribourg, Switzerland
- Dechézelles, Jean-François Adolphe Merkle Institute, University of Fribourg, Switzerland
- Dietsch, Hervé Adolphe Merkle Institute, University of Fribourg, Switzerland
- Geissbühler, Isabelle Chemistry Department, University of Fribourg, Switzerland
- Vanhecke, Dimitri Adolphe Merkle Institute, University of Fribourg, Switzerland
- Geers, Christoph Adolphe Merkle Institute, University of Fribourg, Switzerland
- Hirt, Ann M. Institute for Geophysics, ETH Zurich, Switzerland
- Rothen-Rutishauser, Barbara Adolphe Merkle Institute, University of Fribourg, Switzerland
- Petri-Fink, Alke Adolphe Merkle Institute, University of Fribourg, Switzerland - Chemistry Department, University of Fribourg, Switzerland
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15.03.2014
Published in:
- Journal of Magnetism and Magnetic Materials. - 2014, vol. 362, p. 72–79
English
We report on the synthesis and characterization of functional silica hybrid magnetic nanoparticles (SHMNPs). The co-condensation of 3-aminopropyltriethoxysilane (APTES) and tetraethyl orthosilicate (TEOS) in presence of superparamagnetic iron oxide nanoparticles (SPIONs) leads to hybrid magnetic silica particles that are surface-functionalized with primary amino groups. In this work, a comprehensive synthetic study is carried out and completed by a detailed characterization of hybrid particles׳ size and morphology, surface properties, and magnetic responses using different techniques. Depending on the mass ratio of SPIONs and the two silanes (TEOS and APTES), we were able to adjust the number of surface amino groups and tune the magnetic properties of the superparamagnetic hybrid particles.
- Faculty
- Faculté des sciences et de médecine
- Department
- Département de Chimie
- Language
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- English
- Classification
- Chemistry
- License
- License undefined
- Identifiers
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- RERO DOC 211396
- DOI 10.1016/j.jmmm.2014.03.026
- Persistent URL
- https://folia.unifr.ch/unifr/documents/303566
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