Magneto-optical harmonic susceptometry of superparamagnetic materials

Vandendriessche, Stefaan; Brullot, Ward; Slavov, D.; Valev, Ventsislav K.; Verbiest, Thierry

doi:10.1063/1.4801837

Cited by 19 publications

(5 citation statements)

References 35 publications

(39 reference statements)

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“…On the other hand, FG cycles depart from the linear response theory showing a more sigmoidal shape with a significant increase in uneven harmonics, similar to the results reported by Vandendriessche et al for superparamagnetic Langevin magnetization in MNP [15]. Coercive field is systematically higher for FG at all frequencies.…”

Section: Discussionsupporting

confidence: 87%

Raiders of the lost SAR: Radiofrequency cycles of magnetic nanoflowers inside a tumor

Bruvera,

Actis,

Soto

et al. 2021

Preprint

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Radiofrequency magnetic cycles of ex vivo melanoma tumor tissue loaded with Fe 3 O 4 nanoflowers (NF) were measured for several field conditions and compared with the cycles of a ferrogel (FG) obtained incorporating identical NF in agarose gel. Results were studied in order to understand a reported specific power dissipation (SAR) reduction of the NF in the actual application medium (tumor) in comparison with a typical characterization model as the FG. The linearity of the response, together with coercive field and SAR values were analyzed. Additionally, a novel method for the determination of the NF mean relaxation time is presented. Results show a systematic difference in magnetic response between the NF incorporated in the tumor and those in the FG for all field settings ({98, 170, 260} kHz and {17.4, 54.0} kA/m) with SAR reductions above 50%.

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Section: Discussionsupporting

confidence: 87%

Raiders of the lost SAR: Radiofrequency cycles of magnetic nanoflowers inside a tumor

Bruvera,

Actis,

Soto

et al. 2021

Preprint

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“…Faraday effect was also used to determine the AC magnetic susceptibility of MNPs [185,186]. In this case, the measurement method is based on the Faraday rotation of the polarization plane of light crossing the magnetic fluid.…”

Section: -Magnetometric Methods For Sar Measurementmentioning

confidence: 99%

Fundamentals and advances in magnetic hyperthermia

Périgo

Hemery

Sandre

et al. 2015

Applied Physics Reviews

716

526

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Nowadays, magnetic hyperthermia constitutes a complementary approach to cancer treatment. The use of magnetic particles as heating mediators, proposed in the 1950s, provides a novel strategy for improving tumor treatment and, consequently, patient quality of life. This review reports a broad overview about several aspects of magnetic hyperthermia addressing new perspectives and the progress on relevant features such as the ad hoc preparation of magnetic nanoparticles, physical modeling of magnetic heating, methods to determine the heat dissipation power of magnetic colloids including the development of experimental apparatus and the influence of biological matrices on the heating efficiency.Comment: 104 pages, 28 figures. Manuscript accepted for publication in Applied Physics Review

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“…Nanocrystals and so‐called quantum dots (QDs) possess dramatically different chemical and physical properties than bulk materials . They account for a significant portion of the nanomaterials and are of fundamental importance for current nanotechnology.…”

Section: Interfaces In Nanocrystals and Quantum Dotsmentioning

confidence: 99%

Understanding Surface and Interfacial Chemistry in Functional Nanomaterials via Solid‐State NMR

et al. 2017

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Surface and interfacial chemistry is of fundamental importance in functional nanomaterials applied in catalysis, energy storage and conversion, medicine, and other nanotechnologies. It has been a perpetual challenge for the scientific community to get an accurate and comprehensive picture of the structures, dynamics, and interactions at interfaces. Here, some recent examples in the major disciplines of nanomaterials are selected (e.g., nanoporous materials, battery materials, nanocrystals and quantum dots, supramolecular assemblies, drug-delivery systems, ionomers, and graphite oxides) and it is shown how interfacial chemistry can be addressed through the perspective of solid-state NMR characterization techniques.

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Magneto-optical harmonic susceptometry of superparamagnetic materials

Cited by 19 publications

References 35 publications

Raiders of the lost SAR: Radiofrequency cycles of magnetic nanoflowers inside a tumor

Raiders of the lost SAR: Radiofrequency cycles of magnetic nanoflowers inside a tumor

Fundamentals and advances in magnetic hyperthermia

Understanding Surface and Interfacial Chemistry in Functional Nanomaterials via Solid‐State NMR

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