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Micromachines
Special Issues
Future Wearable and Implants, 2nd Edition
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Future Wearable and Implants, 2nd Edition

A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "E：Engineering and Technology".

Deadline for manuscript submissions: 31 July 2024 | Viewed by 1995

Special Issue Editor

Dr. Masood Ur Rehman

E-Mail Website
Guest Editor
James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
Interests: compact antenna design; radiowave propagation and channel characterization; satellite navigation system antennas in cluttered environments; electromagnetic wave interaction with the human body; body-centric wireless networks and sensors; remote healthcare technology; mmWave and nanocommunications for body-centric networks and D2D/H2H communications
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Sensors, antennas, circuit design methods, and communications systems are anticipated to drive the development of new technologies in the coming years. Colossal advances in next-generation sensing systems have already shown the potential of this unique class of platforms with applications in the areas of wearable consumer electronics, remote healthcare monitoring, wireless implants, and soft robotics. The ever-growing evolution of low-power electronics, wireless sensor networks, wearable circuit behavior, security, real-time monitoring, and the connectivity of sensors and the Internet of Things (IoT) has accelerated and expanded this development. Current research focuses on new processing methods, materials, and on–off devices such as diodes and transistors, rendering existing progress insufficient to meet the demand of future electronics, particularly wearables and implants. Growing complexities in form-factor, working environment, and operational requirements necessitate thorough and exhaustive efforts towards design, simulation, and modelling techniques of electronics while keeping sensing system integration, power management, and sensors network in deliberation.

This Special Issue will invite novel contributions of leading experts from academia and industry to not only identify the requirements and challenges but also set the tone and direction of progress in the thriving field of electronic circuits and systems for future wearable and implantable systems. This multifaceted discussion will include aspects from electronics to communications and biocompatibility to exposure.

Potential topics include, but are not limited to, the following:

  • Antennas and sensor design for wearables and implants;
  • Energy efficiency in wearable and implantable sensing systems;
  • Implantable and wearable diagnostic and therapeutic systems;
  • Channel modelling for wearables and implants;
  • Numerical and computational modelling techniques for wearables and implants;
  • Sensor interfaces and A/D converters;
  • Material characterization for wearables and implants;
  • Biocompatible operation of implants;
  • Exposure of biological tissues to wearables and implants;
  • Wireless power transfer for body-centric operation;
  • Security and privacy in body-centric nano-communications.

Dr. Masood Ur Rehman
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. Micromachines is an international peer-reviewed open access monthly 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

  • wearables
  • wireless implants
  • biocompatibility
  • body-centric communications
  • electromagnetic exposure
  • energy efficiency
  • implant communication

Related Special Issue

Published Papers (2 papers)

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Review

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26 pages, 4644 KiB  
Review
A Survey of the Thermal Analysis of Implanted Antennas for Wireless Biomedical Devices
by Ala Alemaryeen and Sima Noghanian
Micromachines 2023, 14(10), 1894; https://doi.org/10.3390/mi14101894 - 30 Sep 2023
Cited by 1 | Viewed by 989
Abstract
Wireless implantable biomedical devices (IBDs) are emerging technologies used to enhance patient treatment and monitoring. The performance of wireless IBDs mainly relies on their antennas. Concerns have emerged regarding the potential of wireless IBDs to unintentionally cause tissue heating, leading to potential harm [...] Read more.
Wireless implantable biomedical devices (IBDs) are emerging technologies used to enhance patient treatment and monitoring. The performance of wireless IBDs mainly relies on their antennas. Concerns have emerged regarding the potential of wireless IBDs to unintentionally cause tissue heating, leading to potential harm to surrounding tissue. The previous literature examined temperature estimations and specific absorption rates (SAR) related to IBDs, mainly within the context of thermal therapy applications. Often, these studies consider system parameters such as frequency, input power, and treatment duration without isolating their individual impacts. This paper provides an extensive literature review, focusing on key antenna design parameters affecting heat distribution in IBDs. These parameters encompass antenna design, treatment settings, testing conditions, and thermal modeling. The research highlights that input power has the most significant impact on localized temperature, with operating frequency ranked as the second most influential factor. While emphasizing the importance of understanding tissue heating and optimizing antennas for improved power transfer, these studies also illuminate existing knowledge gaps. Excessive tissue heat can lead to harmful effects such as vaporization, carbonization, and irreversible tissue changes. To ensure patient safety and reduce expenses linked to clinical trials, employing simulation-driven approaches for IBD antenna design and optimization is essential. Full article
(This article belongs to the Special Issue Future Wearable and Implants, 2nd Edition)
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Other

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9 pages, 3261 KiB  
Technical Note
A Single-Sensor Approach for Noninvasively Tracking Phase Velocity in Tendons during Dynamic Movement
by Dylan G. Schmitz, Darryl G. Thelen and Stephanie G. Cone
Micromachines 2024, 15(1), 32; https://doi.org/10.3390/mi15010032 - 23 Dec 2023
Viewed by 678
Abstract
Shear wave tensiometry is a noninvasive method for directly measuring wave speed as a proxy for force in tendons during dynamic activities. Traditionally, tensiometry has used broadband excitation pulses and measured the wave travel time between two sensors. In this work, we demonstrate [...] Read more.
Shear wave tensiometry is a noninvasive method for directly measuring wave speed as a proxy for force in tendons during dynamic activities. Traditionally, tensiometry has used broadband excitation pulses and measured the wave travel time between two sensors. In this work, we demonstrate a new method for tracking phase velocity using shaped excitations and measurements from a single sensor. We observed modulation of phase velocity in the Achilles tendon that was generally consistent with wave speed measures obtained via broadband excitation. We also noted a frequency dependence of phase velocity, which is expected for dispersive soft tissues. The implementation of this method could enhance the use of noninvasive wave speed measures to characterize tendon forces. Further, the approach allows for the design of smaller shear wave tensiometers usable for a broader range of tendons and applications. Full article
(This article belongs to the Special Issue Future Wearable and Implants, 2nd Edition)
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