Rubber-based substrates modified with carbon nanotubes inks to build flexible electrochemical sensors.
Anal Chim Acta
; 827: 95-102, 2014 May 27.
Article
em En
| MEDLINE
| ID: mdl-24833000
ABSTRACT
The development of a solid-contact potentiometric sensor based on conducting rubbers using a carbon nanotubes ink is described here. Commercial rubbers are turned into conductive ones by a simple and versatile method, i.e. painting an aqueous dispersion of single-walled carbon nanotubes on the polymer surface. On this substrate, both the working ion-selective electrode and the reference electrode are built in order to form an integrated potentiometric cell. As a proof-of-principle, selective potassium electrodes are fully characterized giving comparable performances to conventional electrodes (sensitivity, selectivity, stability, linear range, limit of detection and reproducibility). As an application of the rubber-based electrodes, a bracelet was constructed to measure potassium levels in artificial sweat. Since rubbers are ubiquitous in our quotidian life, this approach offers great promise for the generation of chemical information through daily objects.
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MEDLINE
Assunto principal:
Borracha
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Nanotubos de Carbono
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Eletroquímica
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Tinta
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article