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Carbon Nanotube Chemiresistor for Wireless pH Sensing
The ability to accurately measure real-time pH fluctuations in-vivo could be highly advantageous. Early detection and potential prevention of bacteria colonization of surgical implants can be accomplished by monitoring associated acidosis. However, conventional glass membrane or ion-selective field-...
Autores principales: | , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2014
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3966035/ https://www.ncbi.nlm.nih.gov/pubmed/24667793 http://dx.doi.org/10.1038/srep04468 |
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author | Gou, Pingping Kraut, Nadine D. Feigel, Ian M. Bai, Hao Morgan, Gregory J. Chen, Yanan Tang, Yifan Bocan, Kara Stachel, Joshua Berger, Lee Mickle, Marlin Sejdić, Ervin Star, Alexander |
author_facet | Gou, Pingping Kraut, Nadine D. Feigel, Ian M. Bai, Hao Morgan, Gregory J. Chen, Yanan Tang, Yifan Bocan, Kara Stachel, Joshua Berger, Lee Mickle, Marlin Sejdić, Ervin Star, Alexander |
author_sort | Gou, Pingping |
collection | PubMed |
description | The ability to accurately measure real-time pH fluctuations in-vivo could be highly advantageous. Early detection and potential prevention of bacteria colonization of surgical implants can be accomplished by monitoring associated acidosis. However, conventional glass membrane or ion-selective field-effect transistor (ISFET) pH sensing technologies both require a reference electrode which may suffer from leakage of electrolytes and potential contamination. Herein, we describe a solid-state sensor based on oxidized single-walled carbon nanotubes (ox-SWNTs) functionalized with the conductive polymer poly(1-aminoanthracene) (PAA). This device had a Nernstian response over a wide pH range (2–12) and retained sensitivity over 120 days. The sensor was also attached to a passively-powered radio-frequency identification (RFID) tag which transmits pH data through simulated skin. This battery-less, reference electrode free, wirelessly transmitting sensor platform shows potential for biomedical applications as an implantable sensor, adjacent to surgical implants detecting for infection. |
format | Online Article Text |
id | pubmed-3966035 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-39660352014-03-26 Carbon Nanotube Chemiresistor for Wireless pH Sensing Gou, Pingping Kraut, Nadine D. Feigel, Ian M. Bai, Hao Morgan, Gregory J. Chen, Yanan Tang, Yifan Bocan, Kara Stachel, Joshua Berger, Lee Mickle, Marlin Sejdić, Ervin Star, Alexander Sci Rep Article The ability to accurately measure real-time pH fluctuations in-vivo could be highly advantageous. Early detection and potential prevention of bacteria colonization of surgical implants can be accomplished by monitoring associated acidosis. However, conventional glass membrane or ion-selective field-effect transistor (ISFET) pH sensing technologies both require a reference electrode which may suffer from leakage of electrolytes and potential contamination. Herein, we describe a solid-state sensor based on oxidized single-walled carbon nanotubes (ox-SWNTs) functionalized with the conductive polymer poly(1-aminoanthracene) (PAA). This device had a Nernstian response over a wide pH range (2–12) and retained sensitivity over 120 days. The sensor was also attached to a passively-powered radio-frequency identification (RFID) tag which transmits pH data through simulated skin. This battery-less, reference electrode free, wirelessly transmitting sensor platform shows potential for biomedical applications as an implantable sensor, adjacent to surgical implants detecting for infection. Nature Publishing Group 2014-03-26 /pmc/articles/PMC3966035/ /pubmed/24667793 http://dx.doi.org/10.1038/srep04468 Text en Copyright © 2014, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by/3.0/ This work is licensed under a Creative Commons Attribution 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by/3.0/ |
spellingShingle | Article Gou, Pingping Kraut, Nadine D. Feigel, Ian M. Bai, Hao Morgan, Gregory J. Chen, Yanan Tang, Yifan Bocan, Kara Stachel, Joshua Berger, Lee Mickle, Marlin Sejdić, Ervin Star, Alexander Carbon Nanotube Chemiresistor for Wireless pH Sensing |
title | Carbon Nanotube Chemiresistor for Wireless pH Sensing |
title_full | Carbon Nanotube Chemiresistor for Wireless pH Sensing |
title_fullStr | Carbon Nanotube Chemiresistor for Wireless pH Sensing |
title_full_unstemmed | Carbon Nanotube Chemiresistor for Wireless pH Sensing |
title_short | Carbon Nanotube Chemiresistor for Wireless pH Sensing |
title_sort | carbon nanotube chemiresistor for wireless ph sensing |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3966035/ https://www.ncbi.nlm.nih.gov/pubmed/24667793 http://dx.doi.org/10.1038/srep04468 |
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