A Paper-Based Electrochromic Array for Visualized Electrochemical Sensing

We report a battery-powered, paper-based electrochromic array for visualized electrochemical sensing. The paper-based sensing system consists of six parallel electrochemical cells, which are powered by an aluminum-air battery. Each single electrochemical cell uses a Prussian Blue spot electrodeposit...

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Detalles Bibliográficos
Autores principales: Zhang, Fengling, Cai, Tianyi, Ma, Liang, Zhan, Liyuan, Liu, Hong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5336109/
https://www.ncbi.nlm.nih.gov/pubmed/28146120
http://dx.doi.org/10.3390/s17020276
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author Zhang, Fengling
Cai, Tianyi
Ma, Liang
Zhan, Liyuan
Liu, Hong
author_facet Zhang, Fengling
Cai, Tianyi
Ma, Liang
Zhan, Liyuan
Liu, Hong
author_sort Zhang, Fengling
collection PubMed
description We report a battery-powered, paper-based electrochromic array for visualized electrochemical sensing. The paper-based sensing system consists of six parallel electrochemical cells, which are powered by an aluminum-air battery. Each single electrochemical cell uses a Prussian Blue spot electrodeposited on an indium-doped tin oxide thin film as the electrochromic indicator. Each electrochemical cell is preloaded with increasing amounts of analyte. The sample activates the battery for the sensing. Both the preloaded analyte and the analyte in the sample initiate the color change of Prussian Blue to Prussian White. With a reaction time of 60 s, the number of electrochemical cells with complete color changes is correlated to the concentration of analyte in the sample. As a proof-of-concept analyte, lactic acid was detected semi-quantitatively using the naked eye.
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spelling pubmed-53361092017-03-16 A Paper-Based Electrochromic Array for Visualized Electrochemical Sensing Zhang, Fengling Cai, Tianyi Ma, Liang Zhan, Liyuan Liu, Hong Sensors (Basel) Article We report a battery-powered, paper-based electrochromic array for visualized electrochemical sensing. The paper-based sensing system consists of six parallel electrochemical cells, which are powered by an aluminum-air battery. Each single electrochemical cell uses a Prussian Blue spot electrodeposited on an indium-doped tin oxide thin film as the electrochromic indicator. Each electrochemical cell is preloaded with increasing amounts of analyte. The sample activates the battery for the sensing. Both the preloaded analyte and the analyte in the sample initiate the color change of Prussian Blue to Prussian White. With a reaction time of 60 s, the number of electrochemical cells with complete color changes is correlated to the concentration of analyte in the sample. As a proof-of-concept analyte, lactic acid was detected semi-quantitatively using the naked eye. MDPI 2017-01-31 /pmc/articles/PMC5336109/ /pubmed/28146120 http://dx.doi.org/10.3390/s17020276 Text en © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Zhang, Fengling
Cai, Tianyi
Ma, Liang
Zhan, Liyuan
Liu, Hong
A Paper-Based Electrochromic Array for Visualized Electrochemical Sensing
title A Paper-Based Electrochromic Array for Visualized Electrochemical Sensing
title_full A Paper-Based Electrochromic Array for Visualized Electrochemical Sensing
title_fullStr A Paper-Based Electrochromic Array for Visualized Electrochemical Sensing
title_full_unstemmed A Paper-Based Electrochromic Array for Visualized Electrochemical Sensing
title_short A Paper-Based Electrochromic Array for Visualized Electrochemical Sensing
title_sort paper-based electrochromic array for visualized electrochemical sensing
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5336109/
https://www.ncbi.nlm.nih.gov/pubmed/28146120
http://dx.doi.org/10.3390/s17020276
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