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Magnetic Nanomaterials, Devices and Sensors for Biomedical Applications
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Magnetic Nanomaterials, Devices and Sensors for Biomedical Applications

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Biomedical Sensors".

Deadline for manuscript submissions: closed (20 December 2022) | Viewed by 9814

Special Issue Editors

Prof. Dr. Yasushi Takemura

E-Mail Website
Guest Editor
Electrical and Computer Engineering, Yokohama National University, Yokohama, Japan
Interests: magnetic nanoparticles; magnetic sensors
Prof. Dr. Takashi Yoshida

E-Mail Website
Guest Editor
Department of Electrical Engineering, Kyushu University, Fukuoka, Japan
Interests: magnetic particle imaging; biomagnetic sensors

Special Issue Information

Dear Colleagues,

Recently, there has been a growing interest in biomedical applications of magnetic materials and sensors. Diagnostic and therapeutic methods using a magnetic field and magnetic materials are expected to develop future medical care. This is a good opportunity to share recent research achievements in magnetic nanomaterials, devices, and sensors for biomedical applications.

The topics of this Special Issue are as follows, but not limited to:

  1. Magnetic particles for biomedical applications
  2. Characterization of magnetic nanomaterials
  3. Magnetic sensor and sensing system
  4. Immunoassay
  5. Magnetic particle imaging
  6. MRI, low field MRI
  7. MEG, MCG
  8. Hyperthermia
  9. Diagnostic and therapeutic methods using magnetics

Prof. Dr. Yasushi Takemura
Prof. Dr. Takashi Yoshida
Guest Editors

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. Sensors 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 2600 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.

Keywords

  • magnetic nanomaterials
  • magnetic nanoparticles
  • magnetic device
  • magnetic sensor
  • immunoassay
  • magnetic particle imaging
  • MRI
  • low field MRI
  • MEG
  • MCG
  • hyperthermia

Published Papers (2 papers)

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Research

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17 pages, 3575 KiB  
Article
A Low-Cost, Point-of-Care Test for Confirmation of Nasogastric Tube Placement via Magnetic Field Tracking
by Muneaki Miyasaka, Hao Li, Kon Voi Tay and Soo Jay Phee
Sensors 2021, 21(13), 4491; https://doi.org/10.3390/s21134491 - 30 Jun 2021
Cited by 4 | Viewed by 5881
Abstract
In this work, we aim to achieve low-cost real-time tracking for nasogastric tube (NGT) insertion by using a tracking method based on two magnetic sensors. Currently, some electromagnetic (EM) tracking systems used to detect the misinsertion of the NGT are commercially available. While [...] Read more.
In this work, we aim to achieve low-cost real-time tracking for nasogastric tube (NGT) insertion by using a tracking method based on two magnetic sensors. Currently, some electromagnetic (EM) tracking systems used to detect the misinsertion of the NGT are commercially available. While the EM tracking systems can be advantageous over the other conventional methods to confirm the NGT position, their high costs are a factor hindering such systems from wider acceptance in the clinical community. In our approach, a pair of magnetic sensors are used to estimate the location of a permanent magnet embedded at the tip of the NGT. As the cost of the magnet and magnetic sensors is low, the total cost of the system can be less than one-tenth of that of the EM tracking systems. The experimental results exhibited that tracking can be achieved with a root mean square error (RMSE) of 2–5 mm and indicated a great potential for use as a point-of-care test for NGT insertion, to avoid misplacement into the lung and ensure correct placement in the stomach. Full article
(This article belongs to the Special Issue Magnetic Nanomaterials, Devices and Sensors for Biomedical Applications)
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Review

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26 pages, 3397 KiB  
Review
Shaping and Focusing Magnetic Field in the Human Body: State-of-the Art and Promising Technologies
by Sabrina Rotundo, Danilo Brizi, Alessandra Flori, Giulio Giovannetti, Luca Menichetti and Agostino Monorchio
Sensors 2022, 22(14), 5132; https://doi.org/10.3390/s22145132 - 8 Jul 2022
Cited by 20 | Viewed by 3214
Abstract
In recent years, the usage of radio frequency magnetic fields for biomedical applications has increased exponentially. Several diagnostic and therapeutic methodologies exploit this physical entity such as, for instance, magnetic resonance imaging, hyperthermia with magnetic nanoparticles and transcranial magnetic stimulation. Within this framework, [...] Read more.
In recent years, the usage of radio frequency magnetic fields for biomedical applications has increased exponentially. Several diagnostic and therapeutic methodologies exploit this physical entity such as, for instance, magnetic resonance imaging, hyperthermia with magnetic nanoparticles and transcranial magnetic stimulation. Within this framework, the magnetic field focusing and shaping, at different depths inside the tissue, emerges as one of the most important challenges from a technological point of view, since it is highly desirable for improving the effectiveness of clinical methodologies. In this review paper, we will first report some of the biomedical practices employing radio frequency magnetic fields, that appear most promising in clinical settings, explaining the underneath physical principles and operative procedures. Specifically, we direct the interest toward hyperthermia with magnetic nanoparticles and transcranial magnetic stimulation, together with a brief mention of magnetic resonance imaging. Additionally, we deeply review the technological solutions that have appeared so far in the literature to shape and control the radio frequency magnetic field distribution within biological tissues, highlighting human applications. In particular, volume and surface coils, together with the recent raise of metamaterials and metasurfaces will be reported. The present review manuscript can be useful to fill the actual gap in the literature and to serve as a guide for the physicians and engineers working in these fields. Full article
(This article belongs to the Special Issue Magnetic Nanomaterials, Devices and Sensors for Biomedical Applications)
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