Article
Materials Science, Multidisciplinary
Satoshi Ota, Suko Bagus Trisnanto, Seiji Takeuchi, Jiaojiao Wu, Yu Cheng, Yasushi Takemura
Summary: The study measured the magnetization properties and heat dissipation of different commercial magnetic nanoparticles, estimating the effective core diameter and anisotropy constant taking into consideration the effect of anisotropy. A method to quantitate realistic heat dissipation of magnetic nanoparticles in tumor tissue by measurement of their magnetization properties was introduced.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Constantin Mihai Lucaciu, Stefan Nitica, Ionel Fizesan, Lorena Filip, Liviu Bilteanu, Cristian Iacovita
Summary: This study systematically investigated the effects of collective organization on the hyperthermic properties of magnetic nanoparticles (MNPs). The results showed a nonlinear relationship between concentration and specific absorption rate (SAR), and a significant enhancement of SAR by the superposition of a static bias direct current (DC) magnetic field.
Review
Chemistry, Multidisciplinary
Hira Fatima, Tawatchai Charinpanitkul, Kyo-Seon Kim
Summary: The activation of magnetic nanoparticles in hyperthermia treatment by an external alternating magnetic field is an effective technique for targeted cancer therapy. The heating efficiency of magnetic nanoparticles is influenced by factors such as the product values of the applied magnetic field and frequency, as well as protein corona formation.
Article
Materials Science, Multidisciplinary
Tsuyoshi Yamaminami, Satoshi Ota, Suko Bagus Trisnanto, Mamoru Ishikawa, Tsutomu Yamada, Takashi Yoshida, Keiji Enpuku, Yasushi Takemura
Summary: The study measured the frequency dependence of magnetization of magnetic nanoparticles under different AC fields to examine the linear and nonlinear magnetization responses. Two methods were used to evaluate the AC susceptibility, with differences observed in the estimated values at different field intensities. Understanding the difference between the two methods is important for optimizing material and field conditions for hyperthermia treatment.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2021)
Article
Pharmacology & Pharmacy
Javier B. Mamani, Taylla K. F. Souza, Mariana P. Nucci, Fernando A. Oliveira, Leopoldo P. Nucci, Arielly H. Alves, Gabriel N. A. Rego, Luciana Marti, Lionel F. Gamarra
Summary: This in vitro study assessed the use of magnetic hyperthermia (MHT) and the best strategy for internalizing magnetic nanoparticles in glioblastoma tumor cells. The study identified optimal conditions for SPIONAmine internalization, resulting in a significant decrease in cell viability. This promising approach suggests the potential of using magnetic nanoparticles in anti-tumor treatments.
Article
Chemistry, Multidisciplinary
Venkatesha Narayanaswamy, Imaddin A. Al-Omari, Aleksandr S. Kamzin, Bashar Issa, Ihab M. Obaidat
Summary: Magnetically hard-soft core-shell ferrite nanoparticles were synthesized using an organometallic decomposition method. The magnetic properties and magnetic heating efficiency for magnetic hyperthermia applications were investigated, and it was found that the core-shell structure exhibited superior performance.
Article
Nanoscience & Nanotechnology
Maria E. F. Brollo, Ivanei F. Pinheiro, Gabriel S. Bassani, Guillaume Varet, Vanessa C. B. Guersoni, Marcelo Knobel, Antonio C. Bannwart, Diego Muraca, Charlie van der Geest
Summary: Magnetic hyperthermia is a phenomenon where the temperature of a system increases using magnetic nanoparticles in an alternating magnetic field, which has potential industrial applications for reducing fluid viscosity. Experimental results showed a clear temperature increase in liquids flowing through the AMF, suggesting that this technology could be applied on an industrial scale with optimized coils and NP properties.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Analytical
Cristian Musuroi, Mihai Oproiu, Marius Volmer, Jenica Neamtu, Marioara Avram, Elena Helerea
Summary: This paper presents a practical method for improving the sensitivity and linearity of a GMR-based current sensor by using multi-trace current trace and a double differential GMR detection system. Experimental results demonstrate a significant increase in sensitivity and application for detecting magnetic nanoparticles.
Article
Biochemistry & Molecular Biology
Matus Molcan, Andrzej Skumiel, Milan Timko, Ivo Safarik, Kristina Zolochevska, Peter Kopcansky
Summary: Various materials, including iron oxide particle nanosystems, are studied in the field of magnetic hyperthermia, with promising results shown in clinical trials. The type of material can affect hyperthermia indicators, and studies have analyzed magnetite nanoparticles in different forms, revealing that a rotating magnetic field is more efficient in generating heat than an alternating magnetic field. Efficiency varies based on the arrangement of magnetite nanoparticles.
Article
Chemistry, Physical
M. Xing, Jeotikanta Mohapatra, J. Beatty, J. Elkins, Nil Kanatha Pandey, A. Chalise, W. Chen, M. Jin, J. Ping Liu
Summary: Localized heat generation using iron carbide nanoparticles with a thin carbon shell shows promising magnetothermal and photothermal effects when irradiated with a NIR laser, and exhibits enhanced specific absorption rate under an alternating magnetic field due to high magnetization and coercivity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Chao Mei, Jingjing Li, Bowei Zhang, Xu Zhu, Feng Hu, Wei Liu, Hailin Su, Zhongqiu Zou, Youwei Du
Summary: In this study, the construction of a high-quality insulating layer and the effects of a DC bias field on magnetic properties in soft magnetic composites were investigated. A novel insulation technique involving APTES was developed to successfully coat kaolin on FeNi particles, and the magnetic properties were effectively regulated by changing the dosage of kaolin. The results showed that increasing the kaolin content improved the antimagnetization capacity and resistivity. The study used a loss separation model and magnetic field simulation to investigate the influence of the coating layer and DC bias field on core loss for FeNi@kaolin SMCs. The results indicated that the structural demagnetizing field and eddy current were the main determinants of core loss variation in ideal sinusoidal waves, whereas the degree of magnetization state away from saturation played a leading role in core loss under larger DC bias fields. FeNi SMCs insulated with 1 wt% and 7 wt% kaolin exhibited the lowest core loss at a DC bias field of 0 Oe and above 100 Oe, respectively. This work not only provides an effective insulating technique but also offers deeper insights into optimizing SMC-based magnetic components under larger DC bias fields.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2023)
Article
Toxicology
Sarah Kraus, Ricarina Rabinovitz, Ekaterina Sigalov, Moshe Eltanani, Raz Khandadash, Cheri Tal, Ofra Rivlin, Eddie Sharaga, Pazit Rukenstein, Moshe Cohen-Erner, Abraham Nyska, Yariv Siman-Tov, Ofer Shalev
Summary: There is limited evidence of the successful and safe application of magnetic hyperthermia in large animals. A new therapeutic approach called superparamagnetic hyperthermia, using multicore encapsulated iron oxide nanoparticles, has been developed to overcome the safety challenges. Studies conducted in healthy swine show that the approach is safe and well-tolerated, both when used alone and in combination with external alternating magnetic field (AMF) exposure.
ARCHIVES OF TOXICOLOGY
(2022)
Article
Materials Science, Multidisciplinary
R. G. Gontijo, A. B. Guimaraes
Summary: This study numerically investigates the effect of a rotating magnetic field on heat dissipation in magnetic hyperthermia. A validated code based on Langevin Dynamics is used to simulate the problem. The results show nonlinear response of the magnetic suspension to the amplitude and frequency of the field. The relaxation time and volume fraction of particles also influence the thermal response. The analysis provides insights into the system's behavior based on timescales and micro-structural features of the suspension.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
David Serantes, Daniel Baldomir
Summary: This study explores how the threshold size for magnetic agglomeration varies depending on the magnetic anisotropy constant K, finding that small variations in K may shift the threshold size by a few nanometers. A comparison with usual superparamagnetic estimation and energy competition approach is provided, while also analyzing the key role of anisotropy in hyperthermia performance.
Article
Engineering, Multidisciplinary
Xiaojun Zhao, Rui Wang, Xiaona Liu, Lin Li
Summary: A new algorithm for numerical identification of the static Preisach hysteresis model is proposed to accurately estimate dc-biasing hysteresis curves and hysteresis loss of grain-oriented silicon steel sheets. The algorithm constructs a dynamic hysteresis model for simulation of dc-biased dynamic hysteretic behaviors, showing effectiveness through consistency between simulated and measured results. The impact of dc bias on iron loss is also analyzed.
IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS
(2021)
