Wireless communication and power harvesting in wearable contact lens sensors

Yuan, M., Das, R. , McGlynn, E., Ghannam, R. , Abbasi, Q. H. and Heidari, H. (2021) Wireless communication and power harvesting in wearable contact lens sensors. IEEE Sensors Journal, 21(11), pp. 12484-12497. (doi: 10.1109/JSEN.2021.3055077)

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Abstract

The human eye contains multiple biomarkers related to various diseases, making electronic contact lens an ideal non-invasive platform for their diagnosis and treatment. Recent advances in technology have enabled the monitoring and diagnosis of glaucoma from Intraocular Pressure (IOP) detection, diabetes from glucose concentration detections, and other biosensors for pH and temperature sensing. Different sensor designs have led to distinct power transfer techniques, among which inductively coupled power transfer is considered most favourable for electronic contact lenses power delivery applications. Therefore, loop antenna, spiral shape antenna, and antenna with nanomaterials such as graphene and hybrid silver nanofibers have been explored under Industrial, Scientific, and Medical (ISM) frequency bands for both Wireless Power Transfer (WPT) and data communication. Notably, spiral antennas are also considered as the component of IOP sensing using capacitive sensors to detect the changes in frequency caused by pressure. This article reviews the state-of-the-art technologies in electronic contact lens sensors and their power delivery techniques. Herein, diverse sensing methods, materials, and power transfer techniques and the promising future trends and challenges in electronic contact lenses have been presented.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:McGlynn, Eve and Abbasi, Dr Qammer and Ghannam, Dr Rami and Heidari, Dr Hadi and Yuan, Mengyao and Das, Dr Rupam
Authors: Yuan, M., Das, R., McGlynn, E., Ghannam, R., Abbasi, Q. H., and Heidari, H.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Journal Name:IEEE Sensors Journal
Publisher:IEEE
ISSN:1530-437X
ISSN (Online):1558-1748
Published Online:27 January 2021
Copyright Holders:Copyright © 2020 IEEE
First Published:First published in IEEE Sensors Journal 21(11): 12484-12497
Publisher Policy:Reproduced in accordance with the publisher copyright policy

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
304896EPSRC-IAA: Early Stage Commercialisation of a PET Imaging Agent for the Detection of Cardiovascular Disease and CancerAndrew SutherlandEngineering and Physical Sciences Research Council (EPSRC)EP/R511705/1Chemistry