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In the field of nanomedicine, superparamagnetic nanoparticles are one of the most studied nanomaterials for theranostics. In this study, a one-pot synthesis of magnetic nanoparticles is presented, with an increased control on particle size from 10 to 40 nm. Monitoring of vacuum level is introduced here as a crucial parameter for achieving a fine particle morphology. The magnetic properties of these nanoparticles are highly affected by disorders or mismatches in crystal structure. A prolonged oxidation step is applied to the obtained nanoparticles to transform the magnetic phases into a pure maghemite one, confirmed by high-resolution X-ray photoelectron spectroscopy analysis, by Mössbauer spectrometry and, indirectly, by increased performances in magnetization curves and in relaxation times. Afterward, the attained nanoparticles are transferred into water by a nonderivatized dextran coating. Thermogravimetric …
American Chemical Society
Publication date: 
10 May 2018

Riccardo Di Corato, Alessandra Aloisi, Simona Rella, Jean-Marc Greneche, Giammarino Pugliese, Teresa Pellegrino, Cosimino Malitesta, Rosaria Rinaldi

Biblio References: 
Volume: 10 Issue: 24 Pages: 20271-20280
ACS applied materials & interfaces