Mañana, JUEVES, 24 DE ABRIL, el sistema se apagará debido a tareas habituales de mantenimiento a partir de las 9 de la mañana. Lamentamos las molestias.
Compositional Tuning of Light-to-Heat Conversion Efficiency and of Optical Properties of Superparamagnetic Iron Oxide Nanoparticles
Entity
UAM. Departamento de Física de Materiales; UAM. Departamento de BiologíaPublisher
American Chemical SocietyDate
2018-07-19Citation
10.1021/acs.jpcc.8b03709
Journal of Physical Chemistry C 122.28 (2018): 16389-16396
ISSN
1932-7447 (print); 1932-7455 (online)DOI
10.1021/acs.jpcc.8b03709Funded by
This work was supported financially by the MINECO (Projects MAT2015-67557-C2-2-P, CTQ2016-78454-C2-2-R, and MAT2016-75362-C3-1-R), the Agencia Estatal de Investigacioń (AEI, Spain), Fondo Europeo de Desarrollo Regional (FEDER, EU), the Instituto de Salud Carlos III (PI16/00812), Comunidad Autónoma de Madrid (B2017/BMD-3867RENIM-CM), and the European Comission (Nano-TBTech). This work has been also partially supported by COST action CM1403. J.H. acknowledges a scholarship from the China Scholarship Council (No. 201506650003)Project
Gobierno de España. MAT2015-67557-C2-2-P; Gobierno de España. CTQ2016-78454-C2-2-R; Gobierno de España. MAT2016-75362-C3-1-R; Gobierno de España. PI16/00812; Comunidad de Madrid. B2017/BMD-3867/RENIM-CM; info:eu-repo/grantAgreement/EC/H2020/801305/EU//NanoTBTechEditor's Version
https://doi.org/10.1021/acs.jpcc.8b03709Subjects
Conversion efficiency; Medical nanotecnology; Nanomagnetics; Optical properties; Superparamagnetism; Iron oxides; FísicaNote
This document is the Accepted Manuscript version of a Published Work that appeared in final form in Journal of Physical Chemistry C, © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/abs/10.1021/acs.jpcc.8b03709Rights
© 2018 American Chemical SocietyAbstract
Superparamagnetic iron oxide nanoparticles have played a fundamental role in the recent development of nanomedicine as one of the most popular imaging and therapeutic agents. Recently, the ability of iron magnetic nanoparticles for efficient heat generation under infrared optical excitation has even boosted the interest of the scientific community in this family of nanomaterials. The combination of magnetic and optical heating into a single nanostructure makes possible the development of advanced therapy treatments based on synergetic effects between these two heat sources that, in addition, could be combined with high penetration magnetic imaging. Despite its potential, the application of iron oxide nanoparticles in photothermal treatments is limited because the lack of knowledge about the physical mechanisms behind their light-to-heat conversion capacity. In this work, we have systematically investigated the photothermal efficiency of iron oxide nanoparticles with a variable composition achieved by partial replacement of iron by zinc atoms. We have experimentally found that the light-to-heat conversion efficiency gradually increases with the iron content, suggesting a dominant role of iron related transitions in the heating processes. Experimental data included in this work reveal a simple route to tailor the light activated heating processes in iron oxide nanoparticles toward fully controllable treatments
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Google Scholar:Rivero, María
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Hu, Jie
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Jaque García, Daniel
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Cañete Gugel, Magdalena
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Sánchez Marcos, Jorge
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Muñoz-Bonilla, Alexandra
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