Group leader: Marcella Bini
Group members: Marco Ambrosetti, Chiara Milanese, Alessandro Girella
A biomaterial is “a substance employed to build objects capable of replacing original living parts of the human body” and, when inserted in the body, it should not produce adverse reactions, i.e. it should be biocompatible. Biomaterials are drug delivery systems, materials for prosthesis, surgical equipment or compounds used for the diagnosis. In this field, we synthesize mixed oxides, particularly zinc, magnesium or calcium ferrites used for example for magneto-fluid hyperthermia (a technique for cancer treatment) or as antibacterial compounds, very necessary due to the antimicrobial resistance to the most diffused antibiotics. The materials synthesized with different synthetic routes in pure form or with proper substituents in nanometric dimensions are characterized from the physico-chemical point of view by X-ray powder diffraction, SEM and spectroscopic techniques. Then, depending on the application, we can determine the magnetic (they should be superparamagnetic, with crystallite sizes possibly under 25 nm) or antibacterial properties, towards Gram positive or Gram negative pathogens bacteria such as Escherichia Coli and/or Stafilococcus Aureus.
Dipartimento di Fisica, Dipartimento di Scienze del Farmaco, Dipartimento di Biologia e Biotecnologie, Università di Firenze
Gianluca Gazzola, Marco Ambrosetti, Maria Cristina Mozzati, Benedetta Albini, Pietro Galinetto and Marcella Bini.
Tuning the superparamagnetic effect in ZnFe2O4 nanoparticles with Mg, Ga doping,
Mat. Chem. Phys. (2021), 273, 125069, doi: 10.1016/j.matchemphys.2021.125069
Erika Fantozzi, Erlinda Rama, Cinzia Calvio, Benedetta Albini, Pietro Galinetto, Marcella Bini.
Silver Doped Magnesium Ferrite Nanoparticles: Physico-Chemical Characterization and Antibacterial Activity,
Materials (2021), 14, 2859, doi: 10.3390/ma14112859
Marcella Bini, Christian Tondo, Doretta Capsoni, Maria Cristina Mozzati, Benedetta Albini and Pietro Galinetto.
Superparamagnetic ZnFe2O4 nanoparticles: the effect of Ca and Gd doping,
Materials Chemistry and Physics 204 (2018) 72-82, doi 10.1016/j.matchemphys.2017.10.033