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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-...

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Autores principales: 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
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2014
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.
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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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