Beilstein Arch. 2022, 202212. https://doi.org/10.3762/bxiv.2022.12.v1
Published 02 Mar 2022
Different iron oxides (i.e., magnetite, maghemite, goethite, wüstite) show distinct effects on biological objects, and thus the investigations of the morphology and phase-structural state have prime priority for their biomedical applications.
The aim of this work was to develop one-pot synthesis of magnetic nanoparticles by thermolysis of Fe(III)-oleate or Fe(III)-undecylate in a high-boiling point solvent in situ, using Fe(III)-acetylacetonate. Magnetic nanoparticles were characterized by transmission electron microscopy, dynamic light scattering, thermogravimetric analysis, АТR-FTIR and 57Fe Mössbauer spectroscopy, X-ray diffraction in terms of morphology, hydrodynamic diameter and composition, respectively. The effect of the solvent and unsaturated higher carboxylic acid, used as a reagent and nanoparticles stabilizer, on the particles’ properties was investigated. Synthesis using undecylenic acid led to the formation of iron oxide particles with larger diameter (11-16 nm according to TEM) which were in 75% formed of magnetite. According to the Mössbauer and XRD results, the organic shell thickness around the nanoparticles depended on the nature of the stabilizer, but it did not prevent the partial oxidation of the particles magnetite core to maghemite. In contrast, monodisperse single-domain maghemite nanoparticles with size less than 8 nm were synthesized using oleic acid in 1-octadecene.
Keywords: Iron oxide nanoparticles, Fe(III)-acetylacetonate, thermal decomposition synthesis, maghemite, magnetite
When a peer-reviewed version of this preprint is available, this information will be updated in the information box above. If no peer-reviewed version is available, please cite this preprint using the following information:
Nahorniak, M.; Pasetto, P.; Greneche, J.-M.; Samaryk, V.; Auguste, S.; Rousseau, A.; Nosova, N.; Varvarenko, S. Beilstein Arch. 2022, 202212. doi:10.3762/bxiv.2022.12.v1
Citation data can be downloaded as file using the "Download" button or used for copy/paste from the text window below.
Citation data in RIS format can be imported by all major citation management software, including EndNote, ProCite, RefWorks, and Zotero.
© 2022 Nahorniak et al.; licensee Beilstein-Institut.
This is an open access work licensed under the terms of the Beilstein-Institut Open Access License Agreement (https://www.beilstein-archives.org/xiv/terms), which is identical to the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0). The reuse of material under this license requires that the author(s), source and license are credited. Third-party material in this work could be subject to other licenses (typically indicated in the credit line), and in this case, users are required to obtain permission from the license holder to reuse the material.