Iron oxide nanoparticles (Fe3O4, <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline" id="d1e889" altimg="si63.svg"><mml:mi>γ</mml:mi></mml:math>-Fe2O3 and FeO) as photothermal heat mediators in the first, second and third biological windows

Roca, A.G.; Lopez-Barbera, J.F.; Lafuente, A.; Özel, F.; Fantechi, E.; Muro-Cruces, J.; Hémadi, M.; Sepulveda, B.; Nogues, J.

doi:10.1016/j.physrep.2023.10.003

Cited by 14 publications

(2 citation statements)

References 452 publications

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“…The fitting details are given in the Materials and Methods section, as well as in Figures S11–S13 (ESI). The obtained η value (for both concentrations) stands at 68 ± 3%, positioning it in the higher end of values previously reported for IONPs [ 47 ].…”

Section: Resultssupporting

confidence: 45%

Magnetic Iron Oxide Nanoparticles Coated by Coumarin-Bound Copolymer for Enhanced Magneto- and Photothermal Heating and Luminescent Thermometry

Féron,

Catrouillet,

Sene

et al. 2024

Nanomaterials

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In this work, we report on the synthesis and investigation of new hybrid multifunctional iron oxide nanoparticles (IONPs) coated by coumarin-bound copolymer, which combine magneto- or photothermal heating with luminescent thermometry. A series of amphiphilic block copolymers, including Coum-C11-PPhOx27-PMOx59 and Coum-C11-PButOx8-PMOx42 bearing luminescent and photodimerizable coumarin moiety, as well as coumarin-free PPhOx27-PMOx57, were evaluated for their utility as luminescent thermometers and for encapsulating spherical 26 nm IONPs. The obtained IONP@Coum-C11-PPhOx27-PMOx59 nano-objects are perfectly dispersible in water and able to provide macroscopic heating remotely triggered by an alternating current magnetic field (AMF) with a specific absorption rate (SAR) value of 240 W.g−1 or laser irradiation with a photothermal conversion efficiency of η = 68%. On the other hand, they exhibit temperature-dependent emission of coumarin offering the function of luminescent thermometer, which operates in the visible region between 20 °C and 60 °C in water displaying a maximal relative thermal sensitivity (Sr) of 1.53%·°C−1 at 60 °C.

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Section: Resultssupporting

confidence: 45%

Magnetic Iron Oxide Nanoparticles Coated by Coumarin-Bound Copolymer for Enhanced Magneto- and Photothermal Heating and Luminescent Thermometry

Féron,

Catrouillet,

Sene

et al. 2024

Nanomaterials

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show abstract

“…Furthermore, these temperatures are expected to be even higher when tested using higher field intensities and frequencies (i.e., H = 24.0 kA/m and f = 200 kHz). In view of clinical aspects for effective photothermia, a minimal NP concentration range with short exposure time and a clinically relevant AMF ( H f ≤ 5 × 10 9 A m –1 s –1 ) and NIR laser (0.33–1 W cm –2 ) are desired. For instance, photothermal therapy was tested in mice models in vivo using moderate laser power (0.8 W cm –2 ), showing an improved therapeutic action, which led to total tumor growth inhibition .…”

Section: Resultsmentioning

confidence: 99%

PEGylated Opto-Magnetic Gold and Silver Sulfide Iron Oxide Nanoprobes for Synergistic Photothermal Therapy

El-Boubbou,

Ximendes,

Teran

et al. 2024

ACS Appl. Nano Mater.

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A Simple In Situ Marker Guiding Shape‐Controlled Synthesis of Iron Oxide Nanoparticles

Llacer‐Wintle,

Hertle,

Ziegler

et al. 2024

Adv Funct Materials

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Thermal decomposition of iron oleate is a simple and widespread method for synthesizing monodispersed iron oxide nanoparticles (IONPs) with well‐defined morphology. However, the complexity of the underlying mechanism makes this method rather sensitive to variations in experimental conditions, and the lack of simple techniques to monitor the reaction progress in situ usually results in poor reproducibility and time‐consuming optimizations. Here, a simple, robust, and versatile in situ marker to monitor particle formation based on a sudden change in the temperature during reflux is reported. A linear relationship between the onset of particle formation and the concentration of surfactants is unveiled, corroborating a ‘chemically activated’ burst nucleation mechanism. Using this linear relationship as a guide, highly uniform spherical, cubic, and star‐shaped particles between 12 and 30 nm can be obtained. This temperature marker and the derived linear relationship not only deepen the understanding of the reaction process, but also provide a powerful tool for the straightforward optimization of IONPs.

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Iron oxide nanoparticles (Fe3O4, γ-Fe2O3 and FeO) as photothermal heat mediators in the first, second and third biological windows

Cited by 14 publications

References 452 publications

Magnetic Iron Oxide Nanoparticles Coated by Coumarin-Bound Copolymer for Enhanced Magneto- and Photothermal Heating and Luminescent Thermometry

Magnetic Iron Oxide Nanoparticles Coated by Coumarin-Bound Copolymer for Enhanced Magneto- and Photothermal Heating and Luminescent Thermometry

PEGylated Opto-Magnetic Gold and Silver Sulfide Iron Oxide Nanoprobes for Synergistic Photothermal Therapy

A Simple In Situ Marker Guiding Shape‐Controlled Synthesis of Iron Oxide Nanoparticles

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