ZnxFe3−xO4 (0.01 ≤ x ≤ 0.8) nanoparticles for controlled magnetic hyperthermia application

Srivastava, Mohit; Alla, S.K.; Meena, Sher Singh; Gupta, Nandini; Mandal, R.K.; Prasad, N.K.

doi:10.1039/c8nj00547h

Cited by 65 publications

(48 citation statements)

References 44 publications

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“…Further, Figure 2b shows the binding energy of O 1s as 531.43 eV, corresponded to the O 2− state of oxygen. The Fe 2p state reveals that there were two peaks at 712.42 eV for Fe 2p 1/2 and 725.93 eV for Fe 2p 3/2 due to the presence of Fe 2+ , which was well matched with the reported values [50] in Figure 2c. Figure 2d illustrate the binding energy peak at 284.92 eV, which could describe the presence of C 1s, which was in good agreement with the literature [51].…”

Section: Resultssupporting

confidence: 88%

Carbon Loaded Nano-Designed Spherically High Symmetric Lithium Iron Orthosilicate Cathode Materials for Lithium Secondary Batteries

et al. 2019

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In the present study, Li2FeSiO4 (LFS) cathode material has been prepared via a modified polyol method. The stabilizing nature of polyol solvent was greatly influenced to reduce the particle size (~50 nm) and for coating the carbon on the surface of the as-mentioned materials (~10 nm). As-prepared nano-sized Li2FeSiO4 material deliver initial discharge capacity of 186 mAh·g−1 at 1C with the coulombic efficiency of 99% and sustain up to 100 cycles with only 7 mAh·g−1 is the difference of discharge capacity from its 1st cycle to 100th cycle. The rate performance illustrates the discharge capacity 280 mAh·g−1 for lower C-rate (C/20) and 95 mAh·g−1 for higher C-rate (2C).

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Section: Resultssupporting

confidence: 88%

Carbon Loaded Nano-Designed Spherically High Symmetric Lithium Iron Orthosilicate Cathode Materials for Lithium Secondary Batteries

et al. 2019

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“…The smaller saturation magnetization in sample x = 0 compared to bulk magnetite (446 kA/m) 36 can be due to partial oxidation of the particles and size effects 32,55 . It has been shown in various studies 28,31,37,46,56 that incorporation of zinc, up to certain amounts, in magnetite structure can considerably enhance the saturation magnetization of the composition. However, the peak for this enhancement, observed in x = 0.1 in our samples 32 , has been seen at different amount of zinc 28,31,37,46 .…”

Section: Resultsmentioning

confidence: 99%

Role of zinc substitution in magnetic hyperthermia properties of magnetite nanoparticles: interplay between intrinsic properties and dipolar interactions

Hadadian

Ramos

Pavan

2019

Sci Rep

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Optimizing the intrinsic properties of magnetic nanoparticles for magnetic hyperthermia is of considerable concern. In addition, the heating efficiency of the nanoparticles can be substantially influenced by dipolar interactions. Since adequate control of the intrinsic properties of magnetic nanoparticles is not straightforward, experimentally studying the complex interplay between these properties and dipolar interactions affecting the specific loss power can be challenging. Substituting zinc in magnetite structure is considered as an elegant approach to tune its properties. Here, we present experimental and numerical simulation results of magnetic hyperthermia studies using a series of zinc-substituted magnetite nanoparticles (ZnxFe1-xFe2O4, x = 0.0, 0.1, 0.2, 0.3 and 0.4). All experiments were conducted in linear regime and the results were inferred based on the numerical simulations conducted in the framework of the linear response theory. The results showed that depending on the nanoparticles intrinsic properties, interparticle interactions can have different effects on the specific loss power. When dipolar interactions were strong enough to affect the heating efficiency, the parameter σ = KeffV/kBT (Keff is the effective anisotropy and V the volume of the particles) determined the type of the effect. Finally, the sample x = 0.1 showed a superior performance with a relatively high intrinsic loss power 5.4 nHm2kg−1.

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“…Recently, this phenomenon has been used to formulate ferrite-based self-controlled heating mediators, mainly the mixed ferrites such as Zn x Fe 3-x O 4 , MnZnFe 2 O 4 , MgFe 2 O 4 , etc. [58,59,60,61].…”

Section: Characteristics Of Magnetic Nanoparticles and Inductive Hmentioning

confidence: 99%

Inductive Thermal Effect of Ferrite Magnetic Nanoparticles

2019

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Localized heat induction using magnetic nanoparticles under an alternating magnetic field is an emerging technology applied in areas including, cancer treatment, thermally activated drug release and remote activation of cell functions. To enhance the induction heating efficiency of magnetic nanoparticles, the intrinsic and extrinsic magnetic parameters influencing the heating efficiency of magnetic nanoparticles should be effectively engineered. This review covers the recent progress in the optimization of magnetic properties of spinel ferrite nanoparticles for efficient heat induction. The key materials factors for efficient magnetic heating including size, shape, composition, inter/intra particle interactions are systematically discussed, from the growth mechanism, process control to chemical and magnetic properties manipulation.

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Zn_xFe_3−xO₄ (0.01 ≤ x ≤ 0.8) nanoparticles for controlled magnetic hyperthermia application

Abstract: Stable temperature was attained during magnetic hyperthermia by Zn substituted magnetite nanoparticles.

Cited by 65 publications

References 44 publications

Carbon Loaded Nano-Designed Spherically High Symmetric Lithium Iron Orthosilicate Cathode Materials for Lithium Secondary Batteries

Carbon Loaded Nano-Designed Spherically High Symmetric Lithium Iron Orthosilicate Cathode Materials for Lithium Secondary Batteries

Role of zinc substitution in magnetic hyperthermia properties of magnetite nanoparticles: interplay between intrinsic properties and dipolar interactions

Inductive Thermal Effect of Ferrite Magnetic Nanoparticles

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