Current Trends in Nanoscale Magnetism

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Nanocomposite Materials".

Deadline for manuscript submissions: closed (31 October 2020) | Viewed by 5761

Special Issue Editor


E-Mail Website
Guest Editor
Department of Physics, Villanova University, Villanova, PA 19085, USA
Interests: magnetic materials; condensed matter physics; nanomaterials
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Nanomagnetism is an ever-expanding field that has witnessed great scientific advancement over the past two decades. The synthesis of novel magnetic nanomaterials, the exploration of associated magnetic phenomena, and the characterization techniques and applications in diverse areas of nanotechnology continue to make important new inroads.

For this Special Issue, both new scientific contributions and review articles are being solicited on the synthesis, characterization, and application of 0D, 1D, 2D, and 3D magnetic nanostructures. The ability to characterize their static and dynamic magnetic properties, on a wide range of timescales, is fundamental to understanding the underlying physics responsible for their behavior. Novel behavior arises from the surface and interface effects of non-collinear spin structures because of spatial confinement, the spin coupling of different magnetic phases across phase boundaries, interparticle interactions, and tunable magnetoresistive and superparamagnetic properties. Magnetophoretic technologies in the bio-medical field have tremendously advanced biomolecule and cell separation methodologies, magnetically-guided drug delivery, gene delivery, and transfection. Within the magnetophoretic platform, superparamagnetic iron oxide nanoparticle (SPION) carriers have been developed as bifunctional agents for disease diagnosis and therapy.

Full articles, communications, and reviews on these and related areas exploring the fundamental physics and applications of nanomagnetism will be considered.

Prof. Dr. Georgia C. Papaefthymiou
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Nanomaterials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2900 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • e-Book format: Special Issues with more than 10 articles can be published as dedicated e-books, ensuring wide and rapid dissemination.

Further information on MDPI's Special Issue polices can be found here.

Published Papers (1 paper)

Order results
Result details
Select all
Export citation of selected articles as:

Research

16 pages, 4719 KiB  
Article
Bi-Magnetic Core-Shell CoFe2O4@MnFe2O4 Nanoparticles for In Vivo Theranostics
by Valentin Nica, Carlos Caro, Jose Maria Páez-Muñoz, Manuel Pernia Leal and Maria Luisa Garcia-Martin
Nanomaterials 2020, 10(5), 907; https://doi.org/10.3390/nano10050907 - 8 May 2020
Cited by 41 | Viewed by 5316
Abstract
In this work, we report the synthesis and characterization of three magnetic nanosystems, CoFe2O4, CoFe2O4@ZnFe2O4, and CoFe2O4@MnFe2O4, which were developed as potential theranostic [...] Read more.
In this work, we report the synthesis and characterization of three magnetic nanosystems, CoFe2O4, CoFe2O4@ZnFe2O4, and CoFe2O4@MnFe2O4, which were developed as potential theranostic agents for magnetic hyperthermia and magnetic resonance imaging (MRI). These nanosystems have been thoroughly characterized by X-ray Diffraction (XRD), Transmission Electron Miscroscopy (TEM), Dark Field-TEM (DF-TEM), Vibrating Sample Magnetometry (VSM), and inductive heating, in order to elucidate their structure, morphology, and magnetic properties. The bi-magnetic CoFe2O4@ZnFe2O4 and CoFe2O4@MnFe2O4 nanoparticles (NPs) exhibited a core-shell structure with a mean average particle size of 11.2 ± 1.4 nm and 14.4 ± 2.4 nm, respectively. The CoFe2O4@MnFe2O4 NPs showed the highest specific absorption rate (SAR) values (210–320 W/g) upon exposure to an external magnetic field, along with the highest saturation magnetization (Ms). Therefore, they were selected for functionalization with the PEGylated ligand to make them stable in aqueous media. After the functionalization process, the NPs showed high magnetic relaxivity values and very low cytotoxicity, demonstrating that CoFe2O4@MnFe2O4 is a good candidate for in vivo applications. Finally, in vivo MRI experiments showed that PEGylated CoFe2O4@MnFe2O4 NPs produce high T2 contrast and exhibit very good stealth properties, leading to the efficient evasion of the mononuclear phagocyte system. Thus, these bi-magnetic core-shell NPs show great potential as theranostic agents for in vivo applications, combining magnetic hyperthermia capabilities with high MRI contrast. Full article
(This article belongs to the Special Issue Current Trends in Nanoscale Magnetism)
Show Figures

Graphical abstract

Back to TopTop