Journal article 1347 views 225 downloads
Evaluation of a minimally invasive glucose biosensor for continuous tissue monitoring
Analytical and Bioanalytical Chemistry, Volume: 408, Issue: 29, Pages: 8427 - 8435
Swansea University Author: Sanjiv Sharma
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DOI (Published version): 10.1007/s00216-016-9961-6
Abstract
We describe here a minimally invasive glucose biosensor based on a microneedle array electrode fabricated from an epoxy-based negative photoresist (SU8 50) and designed for continuous measurement in the dermal compartment with minimal pain. These minimally invasive, continuous monitoring sensor devi...
Published in: | Analytical and Bioanalytical Chemistry |
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ISSN: | 1618-2642 1618-2650 |
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Springer Nature
2016
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URI: | https://cronfa.swan.ac.uk/Record/cronfa36255 |
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2020-07-14T12:12:38.1884733 v2 36255 2017-10-25 Evaluation of a minimally invasive glucose biosensor for continuous tissue monitoring b6b7506358522f607b171ec9c94757b7 0000-0003-3828-737X Sanjiv Sharma Sanjiv Sharma true false 2017-10-25 MEDE We describe here a minimally invasive glucose biosensor based on a microneedle array electrode fabricated from an epoxy-based negative photoresist (SU8 50) and designed for continuous measurement in the dermal compartment with minimal pain. These minimally invasive, continuous monitoring sensor devices (MICoMS) were produced by casting the structures in SU8 50, crosslinking and then metallising them with platinum or silver to obtain the working and reference electrodes, respectively. The metallised microneedle array electrodes were subsequently functionalised by entrapping glucose oxidase in electropolymerised polyphenol (PP) film. Sensor performance in vitro showed that glucose concentrations down to 0.5 mM could be measured with a response times (T90) of 15 s. The effect of sterilisation by Co60 irradiation was evaluated. In preparation for further clinical studies, these sensors were tested in vivo in a healthy volunteer for a period of 3–6 h. The sensor currents were compared against point measurements obtained with a commercial capillary blood glucometer. The epoxy MICoMS devices showed currents values that could be correlated with these. Journal Article Analytical and Bioanalytical Chemistry 408 29 8427 8435 Springer Nature 1618-2642 1618-2650 Microneedles, Electrochemical sensor, Continuous glucose monitoring (CGM) 15 11 2016 2016-11-15 10.1007/s00216-016-9961-6 COLLEGE NANME Biomedical Engineering COLLEGE CODE MEDE Swansea University 2020-07-14T12:12:38.1884733 2017-10-25T14:06:22.6321492 Faculty of Science and Engineering School of Engineering and Applied Sciences - Biomedical Engineering Sanjiv Sharma 0000-0003-3828-737X 1 Zhenyi Huang 2 Michelle Rogers 3 Martyn Boutelle 4 Anthony E. G. Cass 5 0036255-26102017090251.pdf sharma2017(2).pdf 2017-10-26T09:02:51.1070000 Output 1420967 application/pdf Version of Record true 2017-10-26T00:00:00.0000000 This article is distributed under the terms of the Creative Commons Attribution 4.0 International License true eng http://creativecommons.org/licenses/by/4.0/ |
title |
Evaluation of a minimally invasive glucose biosensor for continuous tissue monitoring |
spellingShingle |
Evaluation of a minimally invasive glucose biosensor for continuous tissue monitoring Sanjiv Sharma |
title_short |
Evaluation of a minimally invasive glucose biosensor for continuous tissue monitoring |
title_full |
Evaluation of a minimally invasive glucose biosensor for continuous tissue monitoring |
title_fullStr |
Evaluation of a minimally invasive glucose biosensor for continuous tissue monitoring |
title_full_unstemmed |
Evaluation of a minimally invasive glucose biosensor for continuous tissue monitoring |
title_sort |
Evaluation of a minimally invasive glucose biosensor for continuous tissue monitoring |
author_id_str_mv |
b6b7506358522f607b171ec9c94757b7 |
author_id_fullname_str_mv |
b6b7506358522f607b171ec9c94757b7_***_Sanjiv Sharma |
author |
Sanjiv Sharma |
author2 |
Sanjiv Sharma Zhenyi Huang Michelle Rogers Martyn Boutelle Anthony E. G. Cass |
format |
Journal article |
container_title |
Analytical and Bioanalytical Chemistry |
container_volume |
408 |
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29 |
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8427 |
publishDate |
2016 |
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Swansea University |
issn |
1618-2642 1618-2650 |
doi_str_mv |
10.1007/s00216-016-9961-6 |
publisher |
Springer Nature |
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Faculty of Science and Engineering |
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Faculty of Science and Engineering |
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Faculty of Science and Engineering |
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School of Engineering and Applied Sciences - Biomedical Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Biomedical Engineering |
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description |
We describe here a minimally invasive glucose biosensor based on a microneedle array electrode fabricated from an epoxy-based negative photoresist (SU8 50) and designed for continuous measurement in the dermal compartment with minimal pain. These minimally invasive, continuous monitoring sensor devices (MICoMS) were produced by casting the structures in SU8 50, crosslinking and then metallising them with platinum or silver to obtain the working and reference electrodes, respectively. The metallised microneedle array electrodes were subsequently functionalised by entrapping glucose oxidase in electropolymerised polyphenol (PP) film. Sensor performance in vitro showed that glucose concentrations down to 0.5 mM could be measured with a response times (T90) of 15 s. The effect of sterilisation by Co60 irradiation was evaluated. In preparation for further clinical studies, these sensors were tested in vivo in a healthy volunteer for a period of 3–6 h. The sensor currents were compared against point measurements obtained with a commercial capillary blood glucometer. The epoxy MICoMS devices showed currents values that could be correlated with these. |
published_date |
2016-11-15T03:45:16Z |
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1763752140255264768 |
score |
11.037275 |