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Magnetochemistry, Volume 7, Issue 4

2021 April - 11 articles

Cover Story: The origin of thermotherapy is lost in the mists of time. Today, a technological challenge is to achieve local control of a tumor. In this sense, several concepts have been proposed for the improvement of hyperthermia mediated by magnetic nanoparticles, in which the heat derived from hysteresis is key for its effective clinical translation. For example, chemically synthesized exchange-coupled ferrites are said to provide efficiencies in excess of 10 kW/g. Such statements challenge us to develop a more precise understanding of the interplay between magnetism and geometry. This work compares core–shell Fe/Fe3O4 nanoparticles of cubic and spherical shapes developed using physical vapor deposition techniques. From the information available, it is probably fair to conclude that heating efficiency values reaching around 2 kW/g seem feasible, but anything above should be judged carefully. View this paper
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Articles (11)

  • Article
  • Open Access
3 Citations
3,498 Views
16 Pages

New Radical Cation Salts Based on BDH-TTP Donor: Two Stable Molecular Metals with a Magnetic [ReF6]2− Anion and a Semiconductor with a [ReO4]− Anion

  • Nataliya D. Kushch,
  • Gennady V. Shilov,
  • Lev I. Buravov,
  • Eduard B. Yagubskii and ,
  • Vladimir N. Zverev,
  • Enric Canadell and
  • Jun-ichi Yamada
  • + 2 authors+ 0 author

Three radical cation salts of BDH-TTP with the paramagnetic [ReF6]2− and diamagnetic [ReO4]− anions have been synthesized: κ-(BDH-TTP)4ReF6 (1), κ-(BDH-TTP)4ReF6·4.8H2O (2) and pseudo-κ″-(BDH-TTP)3(ReO4)2 (3). The crystal and band structures, as well...

(This article belongs to the Special Issue Perspectives on Molecular Materials—A Tribute to Professor Peter Day)
  • Feature Paper
  • Article
  • Open Access
6 Citations
2,828 Views
13 Pages

Multiferroic composite materials operating under the principle of strain mediation across the interfaces separating different material boundaries address many limitations of single-phase magnetoelectric materials. Although significant research has be...

(This article belongs to the Section Magnetic Materials)
  • Article
  • Open Access
  • Best Paper Award
158 Citations
8,577 Views
19 Pages

Tuning of Structural, Dielectric, and Electronic Properties of Cu Doped Co–Zn Ferrite Nanoparticles for Multilayer Inductor Chip Applications

  • Muhammad Hadi,
  • Khalid Mujasam Batoo,
  • Ankush Chauhan,
  • Omar M. Aldossary and ,
  • Ritesh Verma and
  • Yujie Yang
  • + 1 author+ 0 author

Herein, we report the synthesis of nanoparticles and doping of Cu-doped Co–Zn ferrites using the auto-combustion sol–gel synthesis technique. X-ray diffraction studies confirmed the single-phase structure of the samples with space group Fd3m and crys...

(This article belongs to the Section Magnetic Materials)
  • Article
  • Open Access
11 Citations
3,789 Views
12 Pages

Magnetic properties of maghemite (γ-Fe2O3) nanoparticles grown on activated multiwall carbon nanotubes have been studied by alternating current (AC) magnetic susceptibility experiments performed under different temperatures, frequencies, and applied...

(This article belongs to the Section Magnetic Nanospecies)
  • Article
  • Open Access
6 Citations
3,646 Views
14 Pages

Magneto-Erythrocyte Membrane Vesicles’ Superior T2 MRI Contrast Agents to Magneto-Liposomes

  • Nina Kostevšek,
  • Patricija Miklavc,
  • Matic Kisovec,
  • Marjetka Podobnik and ,
  • Wafa Al-Jamal and
  • Igor Serša
  • + 1 author+ 0 author

Despite their high potential, most of the clinically approved iron oxide (IO)-based contrast agents for magnetic resonance imaging (MRI) have been withdrawn from the market either due to safety issues or lack of sales. To address this challenge, eryt...

(This article belongs to the Special Issue Biomedical Application of Magnetic Nanoparticles in 2022)
  • Feature Paper
  • Article
  • Open Access
16 Citations
5,553 Views
16 Pages

Coexistence of Spin Canting and Metamagnetism in a One-Dimensional Mn(II) Compound Bridged by Alternating Double End-to-End and Double End-On Azido Ligands and the Analog Co(II) Compound

  • Nesrine Benamara,
  • Zouaoui Setifi,
  • Chen-I Yang,
  • Sylvain Bernès and ,
  • David K. Geiger,
  • Güneş Süheyla Kürkçüoğlu,
  • Fatima Setifi and
  • Jan Reedijk
  • + 3 authors+ 0 author

Two new compounds of general formula [M(N3)2(dmbpy)] in which dmbpy = 5,5′-dimethyl-2,2′-bipyridine, and M = Mn(II) or Co(II), have been solvothermally synthesized and characterized structurally and magnetically. The structures consist of zig-zag pol...

(This article belongs to the Special Issue Perspectives on Molecular Materials—A Tribute to Professor Peter Day)
  • Article
  • Open Access
19 Citations
4,916 Views
14 Pages

Finding the Limits of Magnetic Hyperthermia on Core-Shell Nanoparticles Fabricated by Physical Vapor Methods

  • Carlos Martinez-Boubeta,
  • Konstantinos Simeonidis,
  • Judit Oró,
  • Antonios Makridis and ,
  • David Serantes and
  • Lluis Balcells
  • + 1 author+ 0 author

Magnetic nanoparticles can generate heat when exposed to an alternating magnetic field. Their heating efficacy is governed by their magnetic properties that are in turn determined by their composition, size and morphology. Thus far, iron oxides (e.g....

(This article belongs to the Section Magnetic Nanospecies)
  • Article
  • Open Access
40 Citations
6,436 Views
16 Pages

Gd3+ Doped CoFe2O4 Nanoparticles for Targeted Drug Delivery and Magnetic Resonance Imaging

  • Fatima Javed,
  • Muhammad Asad Abbas,
  • Muhammad Imran Asad,
  • Naveed Ahmed and ,
  • Nauman Naseer,
  • Hassan Saleem,
  • Abdelhamid Errachid,
  • Noureddine Lebaz,
  • Abdelhamid Elaissari and
  • Nasir M. Ahmad
  • + 5 authors+ 0 author

Nanoparticles of CoGdxFe2 − xO4 (x = 0%, 25%, 50%) synthesized via sol–gel auto combustion technique and encapsulated within a polymer (Eudragit E100) shell containing curcumin by single emulsion solvent evaporation technique were formulated in this...

(This article belongs to the Special Issue Biomedical Application of Magnetic Nanoparticles in 2022)
  • Article
  • Open Access
8 Citations
3,805 Views
22 Pages

Oscillatory Copper Deposition on Conical Iron Electrodes in a Nonuniform Magnetic Field

  • Giovanni Marinaro,
  • Mengyuan Huang,
  • Gerd Mutschke,
  • Xuegeng Yang and
  • Kerstin Eckert

We report the effect of a magnetic field on the deposition of copper ions on a conically shaped iron probe. In our setup, the magnetic forces and buoyancy are the key factors influencing the electrolyte flow and the mass transfer. Without external cu...

(This article belongs to the Special Issue Advances in Computational Electromagnetics)
  • Article
  • Open Access
2 Citations
2,942 Views
5 Pages

Electric Field Control of Magnetic Properties by Means of Li+ Migration in FeRh Thin Film

  • Gengfei Li,
  • Yali Xie,
  • Baomin Wang,
  • Huali Yang and
  • Run-Wei Li

Recently, the electric control of magnetism by means of ion migration has been proven to be effective with nonvolatility and low energy consumption. In this work, we investigated the control of the magnetic properties of FeRh films by means of Li+ mi...

(This article belongs to the Special Issue Magnetic Materials, Thin Films and Nanostructures)
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Magnetochemistry - ISSN 2312-7481