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Infrared‐Emitting Multimodal Nanostructures for Controlled In Vivo Magnetic Hyperthermia

Erving Ximendes, Riccardo Marin, Yingli Shen, Diego Ruiz, Diego Gómez‐Cerezo, Paloma Rodríguez‐Sevilla, Jose Lifante, Perla X. Viveros‐Méndez, Francisco Gámez, David García‐Soriano, Gorka Salas, Carmen Zalbidea (+8 others)
2021 Advanced Materials  

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https://web.archive.org/web/20210718092628/https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/adma.202100077

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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
more » ... mpeding 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; Ag2 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.
doi:10.1002/adma.202100077 pmid:34117667 fatcat:oeqyccjg6nbfjh2xxsyo6w7yhy
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Erving Ximendes, Riccardo Marin, Yingli Shen, Diego Ruiz, Diego Gómez‐Cerezo, Paloma Rodríguez‐Sevilla, Jose Lifante, Perla X. Viveros‐Méndez, Francisco Gámez, David García‐Soriano, Gorka Salas, Carmen Zalbidea, Ana Espinosa, Antonio Benayas, Nuria García‐Carrillo, Lorena Cussó, Manuel Desco, Francisco J. Teran, Beatriz H. Juárez, Daniel Jaque. "Infrared‐Emitting Multimodal Nanostructures for Controlled In Vivo Magnetic Hyperthermia." Advanced Materials 33.30 (2021) 2100077