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Vassallo M, Martella D, Barrera G, Celegato F, Coïsson M, Ferrero R, Olivetti ES, Troia A, Sözeri H, Parmeggiani C, Wiersma DS, Tiberto P, Manzin A. Improvement of Hyperthermia Properties of Iron Oxide Nanoparticles by Surface Coating. ACS OMEGA 2023; 8:2143-2154. [PMID: 36687092 PMCID: PMC9850460 DOI: 10.1021/acsomega.2c06244] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Accepted: 12/15/2022] [Indexed: 06/17/2023]
Abstract
Magnetic hyperthermia is an oncological therapy that exploits magnetic nanoparticles activated by radiofrequency magnetic fields to produce a controlled temperature increase in a diseased tissue. The specific loss power (SLP) of magnetic nanoparticles or the capability to release heat can be improved using surface treatments, which can reduce agglomeration effects, thus impacting on local magnetostatic interactions. In this work, Fe3O4 nanoparticles are synthesized via a coprecipitation reaction and fully characterized in terms of structural, morphological, dimensional, magnetic, and hyperthermia properties (under the Hergt-Dutz limit). Different types of surface coatings are tested, comparing their impact on the heating efficacy and colloidal stability, resulting that sodium citrate leads to a doubling of the SLP with a substantial improvement in dispersion and stability in solution over time; an SLP value of around 170 W/g is obtained in this case for a 100 kHz and 48 kA/m magnetic field.
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Affiliation(s)
- Marta Vassallo
- Department
of Advanced Materials Metrology and Life Science, Istituto Nazionale di Ricerca Metrologica (INRiM), Strada delle Cacce, 91, 10135Torino, Italy
- Dipartimento
di Elettronica e Telecomunicazioni, Politecnico
di Torino, Corso Duca degli Abruzzi, 24, 10129Torino, Italy
| | - Daniele Martella
- Department
of Advanced Materials Metrology and Life Science, Istituto Nazionale di Ricerca Metrologica (INRiM), Strada delle Cacce, 91, 10135Torino, Italy
- European
Laboratory for Non-Linear Spectroscopy (LENS), University of Florence, Via Nello Carrara, 1, 50019Sesto Fiorentino, Italy
| | - Gabriele Barrera
- Department
of Advanced Materials Metrology and Life Science, Istituto Nazionale di Ricerca Metrologica (INRiM), Strada delle Cacce, 91, 10135Torino, Italy
| | - Federica Celegato
- Department
of Advanced Materials Metrology and Life Science, Istituto Nazionale di Ricerca Metrologica (INRiM), Strada delle Cacce, 91, 10135Torino, Italy
| | - Marco Coïsson
- Department
of Advanced Materials Metrology and Life Science, Istituto Nazionale di Ricerca Metrologica (INRiM), Strada delle Cacce, 91, 10135Torino, Italy
| | - Riccardo Ferrero
- Department
of Advanced Materials Metrology and Life Science, Istituto Nazionale di Ricerca Metrologica (INRiM), Strada delle Cacce, 91, 10135Torino, Italy
| | - Elena S. Olivetti
- Department
of Advanced Materials Metrology and Life Science, Istituto Nazionale di Ricerca Metrologica (INRiM), Strada delle Cacce, 91, 10135Torino, Italy
| | - Adriano Troia
- Department
of Advanced Materials Metrology and Life Science, Istituto Nazionale di Ricerca Metrologica (INRiM), Strada delle Cacce, 91, 10135Torino, Italy
| | - Hüseyin Sözeri
- Magnetics
Laboratory, TÜBİTAK Ulusal
Metroloji Enstitüsü (UME), Gebze Yerleşkesi, 41470Kocaeli, Turkey
| | - Camilla Parmeggiani
- European
Laboratory for Non-Linear Spectroscopy (LENS), University of Florence, Via Nello Carrara, 1, 50019Sesto Fiorentino, Italy
- Department
of Chemistry “Ugo Schiff”, University of Florence, Via della Lastruccia, 3-13, 50019Sesto Fiorentino, Italy
| | - Diederik S. Wiersma
- European
Laboratory for Non-Linear Spectroscopy (LENS), University of Florence, Via Nello Carrara, 1, 50019Sesto Fiorentino, Italy
- Department
of Physics and Astronomy, University of
Florence, Via Giovanni
Sansone, 1, 50019Sesto Fiorentino, Italy
| | - Paola Tiberto
- Department
of Advanced Materials Metrology and Life Science, Istituto Nazionale di Ricerca Metrologica (INRiM), Strada delle Cacce, 91, 10135Torino, Italy
| | - Alessandra Manzin
- Department
of Advanced Materials Metrology and Life Science, Istituto Nazionale di Ricerca Metrologica (INRiM), Strada delle Cacce, 91, 10135Torino, Italy
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Mikelashvili V, Kekutia S, Markhulia J, Saneblidze L, Maisuradze N, Kriechbaum M, Almásy L. Synthesis and Characterization of Citric Acid-Modified Iron Oxide Nanoparticles Prepared with Electrohydraulic Discharge Treatment. MATERIALS (BASEL, SWITZERLAND) 2023; 16:746. [PMID: 36676484 PMCID: PMC9862667 DOI: 10.3390/ma16020746] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 12/28/2022] [Accepted: 01/07/2023] [Indexed: 06/17/2023]
Abstract
Chemical co-precipitation from ferrous and ferric salts at a 1:1.9 stoichiometric ratio in NH4OH base with ultrasonication (sonolysis) in a low vacuum environment has been used for obtaining colloidal suspensions of Fe3O4 nanoparticles coated with citric acid. Before coating, the nanoparticles were processed by electrohydraulic discharges with a high discharge current (several tens of amperes) in a water medium using a pulsed direct current. Magnetite nanoparticles were obtained with an average crystallite diameter D = 25-28 nm as obtained by XRD and particle sizes of 25 nm as measured by small-angle X-ray scattering. Magnetometry showed that all samples were superparamagnetic. The saturation magnetization for the citric acid covered samples after electrohydraulic processing showed higher value (58 emu/g) than for the directly coated samples (50 emu/g). Ultraviolet-visible spectroscopy and Fourier transform infrared spectroscopy showed the presence and binding of citric acid to the magnetite surface by chemisorption of carboxylate ions. Hydrodynamic sizes obtained from DLS and zeta potentials were 93 and 115 nm, -26 and -32 mV for the citric acid covered nanoparticles and 226 nm and 21 mV for the bare nanoparticles, respectively. The hydraulic discharge treatment resulted in a higher citric acid coverage and better particle dispersion. The developed method can be used in nanoparticle synthesis for biomedical applications.
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Affiliation(s)
- Vladimer Mikelashvili
- Nanocomposites Laboratory, Vladimer Chavchanidze Institute of Cybernetics of the Georgian Technical University, Z. Anjafaridze Str. 5, 0186 Tbilisi, Georgia
| | - Shalva Kekutia
- Nanocomposites Laboratory, Vladimer Chavchanidze Institute of Cybernetics of the Georgian Technical University, Z. Anjafaridze Str. 5, 0186 Tbilisi, Georgia
| | - Jano Markhulia
- Nanocomposites Laboratory, Vladimer Chavchanidze Institute of Cybernetics of the Georgian Technical University, Z. Anjafaridze Str. 5, 0186 Tbilisi, Georgia
| | - Liana Saneblidze
- Nanocomposites Laboratory, Vladimer Chavchanidze Institute of Cybernetics of the Georgian Technical University, Z. Anjafaridze Str. 5, 0186 Tbilisi, Georgia
| | - Nino Maisuradze
- Nanocomposites Laboratory, Vladimer Chavchanidze Institute of Cybernetics of the Georgian Technical University, Z. Anjafaridze Str. 5, 0186 Tbilisi, Georgia
| | - Manfred Kriechbaum
- Institute of Inorganic Chemistry, Graz University of Technology, Stremayrgasse 9/5, A-8010 Graz, Austria
| | - László Almásy
- Research Institute for Energy Security and Environmental Safety, Centre for Energy Research, Konkoly-Thege Miklós Str. 29-33, 1121 Budapest, Hungary
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