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Infrared‐Emitting Multimodal Nanostructures for Controlled In Vivo Magnetic Hyperthermia
Author(s) -
Ximendes Erving,
Marin Riccardo,
Shen Yingli,
Ruiz Diego,
GómezCerezo Diego,
RodríguezSevilla Paloma,
Lifante Jose,
ViverosMéndez Perla X.,
Gámez Francisco,
GarcíaSoriano David,
Salas Gorka,
Zalbidea Carmen,
Espinosa Ana,
Benayas Antonio,
GarcíaCarrillo Nuria,
Cussó Lorena,
Desco Manuel,
Teran Francisco J.,
Juárez Beatriz H.,
Jaque Daniel
Publication year - 2021
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.202100077
Subject(s) - materials science , overheating (electricity) , nanocapsules , magnetic resonance imaging , nanoparticle , magnetic nanoparticles , nanotechnology , magnetic hyperthermia , förster resonance energy transfer , biomedical engineering , fluorescence , optics , radiology , medicine , physics , quantum mechanics
Deliberate and local increase of the temperature within solid tumors represents an effective therapeutic approach. Thermal therapies embrace this concept leveraging the capability of some species to convert the absorbed energy into heat. To that end, magnetic hyperthermia (MHT) uses magnetic nanoparticles (MNPs) that can effectively dissipate the energy absorbed under alternating magnetic fields. However, MNPs fail to provide real‐time thermal feedback with the risk of unwanted overheating and impeding on‐the‐fly adjustment of the therapeutic parameters. Localization of MNPs within a tissue in an accurate, rapid, and cost‐effective way represents another challenge for increasing the efficacy of MHT. In this work, MNPs are combined with state‐of‐the‐art infrared luminescent nanothermometers (LNTh; Ag 2 S nanoparticles) in a nanocapsule that simultaneously overcomes these limitations. The novel optomagnetic nanocapsule acts as multimodal contrast agents for different imaging techniques (magnetic resonance, photoacoustic and near‐infrared fluorescence imaging, optical and X‐ray computed tomography). Most crucially, these nanocapsules provide accurate (0.2 °C resolution) and real‐time subcutaneous thermal feedback during in vivo MHT, also enabling the attainment of thermal maps of the area of interest. These findings are a milestone on the road toward controlled magnetothermal therapies with minimal side effects.