Size dependence of specific power absorption of Fe3O4 particles in AC magnetic field

Ma, Ming; Wu, Yu-Hsueh; Zhou, Jie; Sun, Yongkang; Zhang, Yu; Gu, Ning

doi:10.1016/s0304-8853(03)00426-8

Cited by 457 publications

(244 citation statements)

References 14 publications

Supporting

Mentioning

231

Contrasting

Order By: Relevance

“…The impact of particle size and material processing on the magnetic loss mechanisms and heating characteristics of magnetic particles is quite complicated but is fairly well understood thanks to previous research [19,20]. Theories have been developed that allow analytical techniques to optimize particle size and processing to maximize heating for a specified amplitude and frequency magnetic field [21,22]. In fact, particle sizing and material processing to optimize heating characteristics in medically-safe magnetic fields for biocompatible magnetite materials has already been laid out in research done on Magnetic Fluid Hyperthermia (MFH) [19, C°≥ 42 21,23].…”

Section: Introductionmentioning

confidence: 99%

“…Theories have been developed that allow analytical techniques to optimize particle size and processing to maximize heating for a specified amplitude and frequency magnetic field [21,22]. In fact, particle sizing and material processing to optimize heating characteristics in medically-safe magnetic fields for biocompatible magnetite materials has already been laid out in research done on Magnetic Fluid Hyperthermia (MFH) [19, C°≥ 42 21,23]. If anything these previously-reported magnetite particles heating efficiencies are overly optimized for an SMP application as it will be possible to have higher concentrations of particles in the SMP than it is possible to achieve in cancerous cells, which must be enticed to take up the particles and are only expected to have particle concentrations of roughly 15 mg Fe/g [24].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Inductively Heated Shape Memory Polymer for the Magnetic Actuation of Medical Devices

Buckley

McKinley

Wilson

et al. 2006

IEEE Trans. Biomed. Eng.

332

205

View full text Add to dashboard Cite

Presently there is interest in making medical devices such as expandable stents and intravascular microactuators from shape memory polymer (SMP). One of the key challenges in realizing SMP medical devices is the implementation of a safe and effective method of thermally actuating various device geometries in vivo. A novel scheme of actuation by Curiethermoregulated inductive heating is presented. Prototype medical devices made from SMP loaded with Nickel Zinc ferrite ferromagnetic particles were actuated in air by applying an alternating magnetic field to induce heating. Dynamic mechanical thermal analysis was performed on both the particle-loaded and neat SMP materials to assess the impact of the ferrite particles on the mechanical properties of the samples. Calorimetry was used to quantify the rate of heat generation as a function of particle size and volumetric loading of ferrite particles in the SMP. These tests demonstrated the feasibility of SMP actuation by inductive heating. Rapid and uniform heating was achieved in complex device geometries and particle loading up to 10% volume content did not interfere with the shape recovery of the SMP.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Inductively Heated Shape Memory Polymer for the Magnetic Actuation of Medical Devices

Buckley

McKinley

Wilson

et al. 2006

IEEE Trans. Biomed. Eng.

332

205

View full text Add to dashboard Cite

show abstract

“…31 The SAR equation was used to determine the heat efficiency of the samples, and the SAR value for Fe 3 O 4 , Fe 3 O 4 @Alg, and Fe 3 O 4 @Alg-GA was 192.8, 212.0, and 308.4 W/g Fe, respectively. Ma et al 32 showed that SAR values of magnetite particles were size-dependent. The SAR values increased as particle size decreased.…”

mentioning

confidence: 99%

Functionalized magnetic iron oxide/alginate core-shell nanoparticles for targeting hyperthermia

Liao¹,

Liu²,

Bastakoti³

et al. 2015

IJN

View full text Add to dashboard Cite

Hyperthermia is one of the promising treatments for cancer therapy. However, the development of a magnetic fluid agent that can selectively target a tumor and efficiently elevate temperature while exhibiting excellent biocompatibility still remains challenging. Here a new core-shell nanostructure consisting of inorganic iron oxide (Fe 3 O 4 ) nanoparticles as the core, organic alginate as the shell, and cell-targeting ligands (ie, D-galactosamine) decorated on the outer surface (denoted as Fe 3 O 4 @Alg-GA nanoparticles) was prepared using a combination of a pre-gel method and coprecipitation in aqueous solution. After treatment with an AC magnetic field, the results indicate that Fe 3 O 4 @Alg-GA nanoparticles had excellent hyperthermic efficacy in a human hepatocellular carcinoma cell line (HepG2) owing to enhanced cellular uptake, and show great potential as therapeutic agents for future in vivo drug delivery systems.

show abstract

“…In the case of the powder type materials, a nano-sized superparamagnetic magnetite (Fe 3 O 4 ) prepared by the chemical synthesis method has been investigated as the candidate material for this type of therapy [11][12][13][14]. We have searched for new magnetic materials having a high heat generation ability in an AC magnetic field and a high stability in the human body, and found that Y 3 Fe 5 O 12 has the best heat ability among the reported materials [15][16][17][18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

“…In this study, the SiC powder was selected for the second phase and the ferrimagnetic Y 3 Fe 5 O 12 -nSiC system prepared by the reverse coprecipitation method was investigated for its heat generation ability in an AC magnetic field. 12 -nSiC system was suspended in this mixed solution. An NaOH solution (6 mol/L, 140 mL) was placed in a hot water bath at 100 ℃.…”

Section: Introductionmentioning

confidence: 99%

Heat generation properties in AC magnetic field for composite powder material of the Y3Fe5O12–nSiC system prepared by reverse coprecipitation method

et al. 2016

View full text Add to dashboard Cite

Abstract:Composite powder material of the Y 3 Fe 5 O 12 -nSiC system was synthesized by a reverse coprecipitation method to study its heat generation property in an AC magnetic field. For Y 3 Fe 5 O 12 (n = 0), the maximum heat generation ability of 0.45 W·g 1 in an AC magnetic field (370 kHz, 1.77 kA·m 1 ) was obtained for the sample calcined at 1100 .℃ The SiC addition helped to suppress the particle growth for Y 3 Fe 5 O 12 at the calcination temperature. The heat generation ability was improved by the addition of the SiC powder, and the maximum value of 0.93 W·g 1 was obtained for the n = 0.3 sample calcined at 1250 . The ℃ heat generation ability and the hysteresis loss value were proportional to the cube of the magnetic field (H 3 ). The heat generation ability (W·g 1 ) of the Y 3 Fe 5 O 12 -0.3SiC sample calcined at 1250 ℃ could be expressed by the equation 4.5×10 4 · f · H 3 using the frequency f (kHz) and the magnetic field H (kA·m 1 ).

show abstract

Size dependence of specific power absorption of Fe3O4 particles in AC magnetic field

Cited by 457 publications

References 14 publications

Inductively Heated Shape Memory Polymer for the Magnetic Actuation of Medical Devices

Inductively Heated Shape Memory Polymer for the Magnetic Actuation of Medical Devices

Functionalized magnetic iron oxide/alginate core-shell nanoparticles for targeting hyperthermia

Heat generation properties in AC magnetic field for composite powder material of the Y3Fe5O12–nSiC system prepared by reverse coprecipitation method

Contact Info

Product

Resources

About