Synthesis, Mössbauer Characterization, and Ab Initio Modeling of Iron Oxide Nanoparticles of Medical Interest Functionalized by Dopamine - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Physical Chemistry C Année : 2013

Synthesis, Mössbauer Characterization, and Ab Initio Modeling of Iron Oxide Nanoparticles of Medical Interest Functionalized by Dopamine

Résumé

Polyol made from about 10 nm sized maghemite nanoparticles was functionalized by a hydrophilic catechol derivative, namely, dopamine. Infrared spectroscopy confirmed the grafting, whereas X-ray diffraction and transmission electron microscopy did not show either structural or microstructural change on the iron oxide particles. 57Fe Mössbauer spectrometry allowed, giving a quantitative assessment of the bonding preferences of dopamine on the iron oxide surfaces, the π-donor character of this ligand to be experimentally evidenced for the first time. These results are supplemented by ab initio modeling, expanding on previous work by considering various iron oxide surfaces and orientations. Perspectives of the work are discussed.
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Dates et versions

hal-02269882 , version 1 (23-08-2019)

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J. Fouineau, K. Brymora, L. Ourry, F. Mammeri, N. Yaacoub, et al.. Synthesis, Mössbauer Characterization, and Ab Initio Modeling of Iron Oxide Nanoparticles of Medical Interest Functionalized by Dopamine. Journal of Physical Chemistry C, 2013, 117 (27), pp.14295-14302. ⟨10.1021/jp4027942⟩. ⟨hal-02269882⟩
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