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Recent Advances in Organ Specific Wireless Bioelectronic Devices:Perspective on Biotelemetry and Power Transfer Using Antenna Systems

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Engineering 2022年第4期8卷 27-41页

作者： Ahsan Noor Khan Young-Ok Cha henry giddens Yang Hao School of Electronic Engineering and Computer Science Queen Mary University of LondonLondon E14NSUK

The integration of electronics and biology has spawned bioelectronics and opened exciting opportunities to fulfill the unmet needs of therapeutic *** developments in nanoelectronics and soft and biocompatible materials have shown potential applicability to clinical practices,including physiological sensing,drug delivery,cardiovascular monitoring,and brain *** date,most bioelectronic devices require wired connections for electrical control,making their implantation complicated and inconvenient for *** an alternative,wireless technology is proliferating to create bioelectronics that offer noninvasive control,biotelemetry,and wireless power transfer(WPT).This review paper provides a comprehensive overview of wireless bioelectronics and ongoing developments in their applications for organ-specific treatments,including disorders and *** main emphasis is on delineating the key features of antennas,namely their radiation characteristics,materials,integration with rest of the electronics,and experimental *** the recent progress in wireless mediated bioelectronics is expected to enhance the control of its functionalities,there are still numerous challenges that need to be addressed for commercialization,as well as to address everexpanding and evolving future therapeutic targets.

关键词： Bioelectronics Neural implants Drug delivery Antennas Wireless power

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Microwave characterization of two Ba_(0.6)Sr_(0.4)TiO_(3) dielectric thin films with out-of-plane and in-plane electrode structures

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先进陶瓷(英文) 2023年第8期12卷 1521-1532页

作者： Hanchi Ruan Theo Graves Saunders henry giddens Hangfeng Zhang Achintha Avin Ihalage Jonas Florentin Kolb Matthew Blunt Sajad Haq Haixue Yan Yang Hao School of Electronic Engineering and Computer Science Queen Mary University of LondonLondon E14NSUK School of Engineering and Materials Science Queen Mary University of LondonLondon E14NSUK Department of Chemistry University College LondonLondon WC1H 0AJUK Advanced Services and Products QinetiQFarnborough GU140LXUK

Ferroelectric(FE)thin films have recently attracted renewed interest in research due to their great potential for designing novel tunable electromagnetic devices such as large intelligent surfaces(LISs).However,the mechanism of how a polar structure in the FE thin films contributes to desired tunable performance,especially within the microwave frequency range,which is the most widely used frequency range of electromagnetics,has not been illustrated *** this paper,we described several straightforward and cost-effective methods to fabricate and characterize Ba_(0.6)Sr_(0.4)TiO_(3)(BST)thin films at microwave *** prepared BST thin films here exhibit homogenous structures and great tunability(h)in a wide frequency and temperature range when the applied field is in the out-of-plane *** high tunability can be attributed to high concentration of polar *** response to the applied direct current(DC)field was directly visualized using a novel non-destructive near-field scanning microwave microscopy(NSMM)*** results have provided some intriguing insights into the application of the FE thin films for future programmable high-frequency devices and systems.

关键词： ferroelectric(FE) microwave tunability polarization thin film

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