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Adjustable Hyperthermia Response of Self‐Assembled Ferromagnetic Fe‐MgO Core–Shell Nanoparticles by Tuning Dipole–Dipole Interactions |
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| Authors: | Carlos Martinez‐Boubeta Konstantinos Simeonidis David Serantes Iván Conde‐Leborán Ioannis Kazakis George Stefanou Luis Peña Regina Galceran Lluis Balcells Claude Monty Daniel Baldomir Manassis Mitrakas Makis Angelakeris |
| Affiliation: | 1. Departament d'Electrònica, MIND‐IN2UB, Universitat de Barcelona, Barcelona 08028, Spain;2. Department of Mechanical Engineering, School of Engineering, University of Thessaly, Volos 38334, Greece;3. Instituto de Investigacións Tecnolóxicas and Departamento de Física Aplicada, Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain;4. Department of Physics, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece;5. Institut de Ciència de Materials de Barcelona, Campus Universitat, Autònoma de Barcelona, Bellaterra 08193, Spain;6. Procédés, Matériaux et Energie Solaire, Centre National de la Recherche Scientifique, Odeillo, Font‐Romeu 66120, France;7. Analytical Chemistry Laboratory, Department of Chemical Engineering, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece |
| Abstract: | The Fe‐MgO core‐shell morphology is proposed within the single‐domain nanoparticle regime as an enhanced magnetically driven hyperthermia carrier. The combinatory use of metallic iron as a core material together with the increased particle size (37–65 nm) triggers the tuning of dipolar interactions between particles and allows for further enhancement of their collective heating efficiency via concentration control. A theoretical universal estimation of hysteresis losses reveals the role of dipolar interactions on heating efficiency and outlines the strong influence of coupling effects on hyperthermia opening a novel roadmap towards multifunctional heat‐triggered theranostics particles. |
| Keywords: | magnetic hyperthermia ferromagnetic nanoparticles |